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MK2727S - 27MHz PLL Clock Synthesizer | Renesas
The Renesas Electronics MK2727S is a 27 MHz PLL clock synthesizer with VCXO functionality, packaged in an 8-SOIC outline measuring 0.154 inch, or 3.90 mm, wide. It is identified by distributor listings as a clock generator, PLL, and frequency synthesizer intended for systems requiring a stable local frequency source. The verified data specifically confirms the device category, nominal 27 MHz frequency, VCXO function, PLL clock synthesizer function, and 8-SOIC package. A PLL clock synthesizer is a clock-and-timing integrated circuit that generates, conditions, or multiplies timing references for digital and RF systems. The MK2727S combines a PLL clock synthesizer with VCXO behavior, placing it within the broader hierarchy of clock management, timing control, and semiconductor signal-processing devices. This type of component is relevant when a system needs frequency flexibility, stable clock distribution, or a local oscillator rather than a fixed passive resonator alone. The principal verified feature set is compact but application-defining: a 27 MHz operating reference, VCXO functionality, PLL clock synthesis, and an 8-SOIC package. The available distributor listings describe the part as suitable for clock-generation requirements and compare inventory across multiple suppliers. The package is small enough for conventional surface-mount PCB assembly while remaining compatible with standard 8-pin SOIC footprint checks. Technically, the MK2727S belongs to the clock-and-timing segment rather than a power-management or signal-amplifier category. Its usefulness depends on the required output frequency, tuning range, phase-noise behavior, supply requirements, reference architecture, and downstream clock tolerances. Those detailed electrical limits are not provided in the verified excerpts and must be checked against the official Renesas MK2727 datasheet before final schematic approval, timing-budget closure, or PCB release. Typical design roles include local clock generation for embedded systems, frequency reference conditioning in communications equipment, timing support in RF systems, and synchronization in test or measurement platforms. The verified Xecor comparison describes the MK2727 family as a frequency source for 2.4 GHz and 5 GHz systems, while the manufacturer datasheet page is the authoritative source for electrical limits and application guidance. The most important design practice is to verify the complete electrical and timing specification set rather than selecting from the distributor headline alone. Designers should confirm reference input type, output arrangement, supply voltage, tuning interface, temperature range, and pin-level truth table in the manufacturer datasheet. This page distinguishes verified facts from unavailable parameters and avoids treating distributor classifications as substitutes for engineering specifications. This product data consolidates verified distributor listings, the official Renesas datasheet link, package information, and application context for engineers evaluating the MK2727S. It is intended to support initial sourcing and design screening, while final qualification remains dependent on the full manufacturer datasheet and application-specific validation.
MK2727SLF - 27MHz VCXO/PLL Clock Synthesizer | Renesas
Renesas Electronics MK2727SLF is a 27 MHz voltage-controlled crystal oscillator with an integrated phase-locked loop, classified in verified listings as a PLL clock synthesizer, VCXO, or clock generator with one clock circuit. The device accepts a crystal input, produces a CMOS clock output, and is packaged in an 8-pin SOIC measuring 0.154 inch wide and 3.90 mm in width. Its maximum stated frequency is 27 MHz. A VCXO is a crystal oscillator whose output frequency can be adjusted by an external control voltage. Adding a phase-locked loop allows the oscillator frequency to be stabilized against a reference, making this device part of the clock-generation and frequency-synthesis hierarchy. In system terms, the MK2727SLF is a Clock & Timing IC that converts a crystal input into a controlled CMOS output suitable for clocking or frequency-reference functions. The verified part description identifies the MK2727SLF as a low-cost 27 MHz VCXO. It uses a crystal input, provides a CMOS output, and contains one clock circuit. These characteristics make frequency stability and external control central to its selection. The 8-SOIC package also provides a conventional surface-mount footprint, although pin assignments, voltage limits, control sensitivity, and output-drive details must be confirmed directly from the manufacturer datasheet before layout or replacement work. Technically, the MK2727SLF combines a crystal oscillator with PLL-based frequency control. Such an arrangement can reduce long-term frequency variation relative to an uncompensated crystal oscillator by locking the controlled oscillator to a reference. However, loop bandwidth, capture range, tuning voltage, reference requirements, and phase-noise performance are not present in the supplied verified excerpts, so those values should not be inferred from the 27 MHz headline specification. Typical applications for this device include communication modules, industrial control electronics, embedded equipment, and other systems requiring a tunable or PLL-stabilized CMOS clock. The single-circuit architecture is appropriate where one local clock domain is needed. Care is required when multiple clock domains exist because the supplied data confirms only one clock circuit and does not establish independent output-channel behavior. For a robust design, verify the complete pinout, recommended crystal load, bypass-capacitor values, control-voltage range, and output impedance from the eight-page manufacturer datasheet. Confirm loop stability and startup behavior in the target reference configuration. Do not treat the distributor summary as a substitute for the datasheet when selecting crystal parameters or determining PCB land patterns. This product record consolidates the verified 27 MHz VCXO description, PLL and CMOS classifications, 8-SOIC package information, source listings, and engineering guidance. It also distinguishes confirmed characteristics from parameters that still require datasheet-level verification, reducing the risk of selecting or replacing the MK2727SLF from incomplete catalogue information.
MK2727SLFTR - 27MHz VCXO/PLL Clock Synthesizer | Renesas (Tape & Reel)
Renesas Electronics MK2727SLFTR is a 27 MHz voltage-controlled crystal oscillator with an integrated phase-locked loop, classified in verified listings as a PLL clock synthesizer, VCXO, or clock generator with one clock circuit. The device accepts a crystal input, produces a CMOS clock output, and is packaged in an 8-pin SOIC measuring 0.154 inch wide and 3.90 mm in width. Its maximum stated frequency is 27 MHz. A VCXO is a crystal oscillator whose output frequency can be adjusted by an external control voltage. Adding a phase-locked loop allows the oscillator frequency to be stabilized against a reference, making this device part of the clock-generation and frequency-synthesis hierarchy. In system terms, the MK2727SLFTR is a Clock & Timing IC that converts a crystal input into a controlled CMOS output suitable for clocking or frequency-reference functions. The verified part description identifies the MK2727SLFTR as a low-cost 27 MHz VCXO. It uses a crystal input, provides a CMOS output, and contains one clock circuit. These characteristics make frequency stability and external control central to its selection. The 8-SOIC package also provides a conventional surface-mount footprint, although pin assignments, voltage limits, control sensitivity, and output-drive details must be confirmed directly from the manufacturer datasheet before layout or replacement work. Technically, the MK2727SLFTR combines a crystal oscillator with PLL-based frequency control. Such an arrangement can reduce long-term frequency variation relative to an uncompensated crystal oscillator by locking the controlled oscillator to a reference. However, loop bandwidth, capture range, tuning voltage, reference requirements, and phase-noise performance are not present in the supplied verified excerpts, so those values should not be inferred from the 27 MHz headline specification. Typical applications for this device include communication modules, industrial control electronics, embedded equipment, and other systems requiring a tunable or PLL-stabilized CMOS clock. The single-circuit architecture is appropriate where one local clock domain is needed. Care is required when multiple clock domains exist because the supplied data confirms only one clock circuit and does not establish independent output-channel behavior. For a robust design, verify the complete pinout, recommended crystal load, bypass-capacitor values, control-voltage range, and output impedance from the eight-page manufacturer datasheet. Confirm loop stability and startup behavior in the target reference configuration. Do not treat the distributor summary as a substitute for the datasheet when selecting crystal parameters or determining PCB land patterns. This product record consolidates the verified 27 MHz VCXO description, PLL and CMOS classifications, 8-SOIC package information, source listings, and engineering guidance. It also distinguishes confirmed characteristics from parameters that still require datasheet-level verification, reducing the risk of selecting or replacing the MK2727SLFTR from incomplete catalogue information.
MK2727STR - 27MHz PLL Clock Synthesizer | Renesas (Tape & Reel)
The Renesas Electronics MK2727STR is a 27 MHz PLL clock synthesizer with VCXO functionality, packaged in an 8-SOIC outline measuring 0.154 inch, or 3.90 mm, wide. It is identified by distributor listings as a clock generator, PLL, and frequency synthesizer intended for systems requiring a stable local frequency source. The verified data specifically confirms the device category, nominal 27 MHz frequency, VCXO function, PLL clock synthesizer function, and 8-SOIC package. A PLL clock synthesizer is a clock-and-timing integrated circuit that generates, conditions, or multiplies timing references for digital and RF systems. The MK2727STR combines a PLL clock synthesizer with VCXO behavior, placing it within the broader hierarchy of clock management, timing control, and semiconductor signal-processing devices. This type of component is relevant when a system needs frequency flexibility, stable clock distribution, or a local oscillator rather than a fixed passive resonator alone. The principal verified feature set is compact but application-defining: a 27 MHz operating reference, VCXO functionality, PLL clock synthesis, and an 8-SOIC package. The available distributor listings describe the part as suitable for clock-generation requirements and compare inventory across multiple suppliers. The package is small enough for conventional surface-mount PCB assembly while remaining compatible with standard 8-pin SOIC footprint checks. Technically, the MK2727STR belongs to the clock-and-timing segment rather than a power-management or signal-amplifier category. Its usefulness depends on the required output frequency, tuning range, phase-noise behavior, supply requirements, reference architecture, and downstream clock tolerances. Those detailed electrical limits are not provided in the verified excerpts and must be checked against the official Renesas MK2727 datasheet before final schematic approval, timing-budget closure, or PCB release. Typical design roles include local clock generation for embedded systems, frequency reference conditioning in communications equipment, timing support in RF systems, and synchronization in test or measurement platforms. The verified Xecor comparison describes the MK2727 family as a frequency source for 2.4 GHz and 5 GHz systems, while the manufacturer datasheet page is the authoritative source for electrical limits and application guidance. The most important design practice is to verify the complete electrical and timing specification set rather than selecting from the distributor headline alone. Designers should confirm reference input type, output arrangement, supply voltage, tuning interface, temperature range, and pin-level truth table in the manufacturer datasheet. This page distinguishes verified facts from unavailable parameters and avoids treating distributor classifications as substitutes for engineering specifications. This product data consolidates verified distributor listings, the official Renesas datasheet link, package information, and application context for engineers evaluating the MK2727STR. It is intended to support initial sourcing and design screening, while final qualification remains dependent on the full manufacturer datasheet and application-specific validation.
MK2732-06G - 54 MHz PLL Clock Synthesizer | Renesas
Renesas MK2732-06G is a low-cost, low-jitter VCXO and PLL clock synthesizer with a maximum frequency of 54 MHz, crystal input, CMOS output, and a 16-pin TSSOP package rated at 0.173 inch, or 4.40 mm, width. The device combines a voltage-controlled crystal oscillator, PLL, and multiplier functions in one package. A VCXO, or voltage-controlled crystal oscillator, is a crystal-based frequency source whose output frequency can be adjusted with an external control voltage. A phase-locked loop, commonly abbreviated as PLL, is a feedback control system that synchronizes an oscillator to a reference frequency and multiplies that frequency. The MK2732-06G therefore sits within the clock and timing IC hierarchy as a programmable clock generator, frequency synthesizer, and VCXO timing device. The MK2732-06G accepts a crystal input and provides a CMOS clock output. Its maximum operating frequency is 54 MHz, and it contains one clock circuit with an input-to-output ratio of 1:3. The on-chip VCXO accepts a tuning voltage from 0 V to 3 V, allowing the output clock to vary by plus or minus 100 ppm. The documented pull range is 200 ppm from the minimum tuning voltage of 0 V to the maximum of 3 V. The device includes PLL bypass capability and is intended to replace combinations of discrete VCXOs and frequency multipliers. This integration can reduce the number of separate clock components required in a design while preserving an adjustable output. The specified use cases include xDSL chipsets and MPEG-2 decoders, where deterministic local clock generation can support data conversion and multimedia processing systems. Typical applications include xDSL chipset clocking, MPEG-2 decoder timing, communication equipment, and other systems requiring a crystal-referenced CMOS clock with voltage-controlled frequency adjustment. The 16-pin TSSOP package supports surface-mount assembly and is compatible with compact PCB layouts. Its 4.40 mm body width places it in the TSSOP-16 surface-mount package family. Designers should treat crystal selection, VCXO control-voltage filtering, and output-clock jitter as an integrated design task. Decoupling, grounding, and short clock traces remain important because switching noise at the reference input can degrade clock quality. The manufacturer datasheet should be consulted for the complete pin assignment, recommended crystal circuit, electrical limits, and timing characteristics before layout is released. This product record combines the verified Renesas and distributor descriptions with engineering guidance covering the VCXO, PLL, 54 MHz maximum frequency, 3 V tuning range, 200 ppm pull range, CMOS interface, and 16-TSSOP package. It also distinguishes verified device facts from values that require confirmation from the manufacturer datasheet.
MK2732-06GTR - 54 MHz PLL Clock Synthesizer | Renesas (Tape & Reel)
Renesas MK2732-06GTR is a low-cost, low-jitter VCXO and PLL clock synthesizer with a maximum frequency of 54 MHz, crystal input, CMOS output, and a 16-pin TSSOP package rated at 0.173 inch, or 4.40 mm, width. The device combines a voltage-controlled crystal oscillator, PLL, and multiplier functions in one package. A VCXO, or voltage-controlled crystal oscillator, is a crystal-based frequency source whose output frequency can be adjusted with an external control voltage. A phase-locked loop, commonly abbreviated as PLL, is a feedback control system that synchronizes an oscillator to a reference frequency and multiplies that frequency. The MK2732-06GTR therefore sits within the clock and timing IC hierarchy as a programmable clock generator, frequency synthesizer, and VCXO timing device. The MK2732-06GTR accepts a crystal input and provides a CMOS clock output. Its maximum operating frequency is 54 MHz, and it contains one clock circuit with an input-to-output ratio of 1:3. The on-chip VCXO accepts a tuning voltage from 0 V to 3 V, allowing the output clock to vary by plus or minus 100 ppm. The documented pull range is 200 ppm from the minimum tuning voltage of 0 V to the maximum of 3 V. The device includes PLL bypass capability and is intended to replace combinations of discrete VCXOs and frequency multipliers. This integration can reduce the number of separate clock components required in a design while preserving an adjustable output. The specified use cases include xDSL chipsets and MPEG-2 decoders, where deterministic local clock generation can support data conversion and multimedia processing systems. Typical applications include xDSL chipset clocking, MPEG-2 decoder timing, communication equipment, and other systems requiring a crystal-referenced CMOS clock with voltage-controlled frequency adjustment. The 16-pin TSSOP package supports surface-mount assembly and is compatible with compact PCB layouts. Its 4.40 mm body width places it in the TSSOP-16 surface-mount package family. Designers should treat crystal selection, VCXO control-voltage filtering, and output-clock jitter as an integrated design task. Decoupling, grounding, and short clock traces remain important because switching noise at the reference input can degrade clock quality. The manufacturer datasheet should be consulted for the complete pin assignment, recommended crystal circuit, electrical limits, and timing characteristics before layout is released. This product record combines the verified Renesas and distributor descriptions with engineering guidance covering the VCXO, PLL, 54 MHz maximum frequency, 3 V tuning range, 200 ppm pull range, CMOS interface, and 16-TSSOP package. It also distinguishes verified device facts from values that require confirmation from the manufacturer datasheet.
MK2745-21S - 80MHz DVD/MPEG Clock Synthesizer | Renesas
The Renesas Electronics MK2745-21S is a low-cost, low-jitter clock/frequency synthesizer IC with a maximum output frequency of 80 MHz, packaged in a 16-pin SOIC. It uses an analog phase-locked loop to generate multiple audio output clocks, a processor clock, a divided processor clock, a 27 MHz clock, and additional timing signals for DVD and other MPEG-2-based systems. The device accepts a 27 MHz fundamental-mode crystal or clock input and supports clock or crystal sources with CMOS outputs. A clock synthesizer is a timing-control IC that uses a phase-locked loop to establish an output clock from a stable reference. In the electronics hierarchy, the MK2745-21S is a clock/frequency synthesizer, a clock-and-timing IC, and a power-management-adjacent system-timing component. Its purpose is to distribute related clock signals accurately within a multimedia or consumer-electronics system, reducing the number of separate oscillators and clock-generation circuits required on the printed circuit board. Key features include an 80 MHz maximum output frequency, an analog PLL architecture, CMOS output logic, and support for either a crystal or external clock input. The 27 MHz reference arrangement is particularly relevant to DVD and MPEG-2 equipment, where several audio and processor-related clocks must share a common reference. According to the Renesas manufacturer datasheet, the device is positioned as a low-cost, low-jitter, high-performance clock synthesizer for these applications. Technically, the analog PLL multiplies or divides the reference frequency to develop the required output-clock relationships. Because the reference source and generated outputs are phase-related, the part is intended to provide coherent timing across multiple audio and processor domains. The available specifications identify one PLL circuit, clock or crystal input, and a maximum frequency of 80 MHz. Detailed jitter, output-accuracy, voltage, and temperature limits are not available in the supplied verification excerpts and should be confirmed in the manufacturer datasheet before precision-timing design sign-off. Typical applications include DVD players, MPEG-2-based multimedia systems, set-top equipment, audio processing platforms, and other embedded products requiring a 27 MHz reference and derived clocks. In these systems, the MK2745-21S can replace separate oscillator and divider arrangements where its supported output set and electrical limits satisfy the design. The benefit is centralized clock management, while the tradeoff is dependence on correct reference configuration, output-enable sequencing, board-level return paths, and stable supply voltage. The primary design consideration is to verify every generated frequency and logic level against the exact system timing tree. Layout should provide a short, clean 27 MHz reference path, a controlled crystal or clock source, and low-impedance ground connections. Decoupling and unused-pin handling must follow the manufacturer datasheet, because incorrect implementation can add reference noise or create unintended clock activity even when the nominal output frequencies are correct. This page consolidates the verified manufacturer and distributor information, documents missing electrical details without guessing, compares the available same-family Renesas option, and provides application-specific design guidance. It is intended to support component identification, sourcing, and preliminary engineering evaluation while clearly separating confirmed specifications from parameters that still require datasheet review.
MK2745-21STR - 80MHz DVD/MPEG Clock Synthesizer | Renesas (Tape & Reel)
The Renesas Electronics MK2745-21STR is a low-cost, low-jitter clock/frequency synthesizer IC with a maximum output frequency of 80 MHz, packaged in a 16-pin SOIC. It uses an analog phase-locked loop to generate multiple audio output clocks, a processor clock, a divided processor clock, a 27 MHz clock, and additional timing signals for DVD and other MPEG-2-based systems. The device accepts a 27 MHz fundamental-mode crystal or clock input and supports clock or crystal sources with CMOS outputs. A clock synthesizer is a timing-control IC that uses a phase-locked loop to establish an output clock from a stable reference. In the electronics hierarchy, the MK2745-21STR is a clock/frequency synthesizer, a clock-and-timing IC, and a power-management-adjacent system-timing component. Its purpose is to distribute related clock signals accurately within a multimedia or consumer-electronics system, reducing the number of separate oscillators and clock-generation circuits required on the printed circuit board. Key features include an 80 MHz maximum output frequency, an analog PLL architecture, CMOS output logic, and support for either a crystal or external clock input. The 27 MHz reference arrangement is particularly relevant to DVD and MPEG-2 equipment, where several audio and processor-related clocks must share a common reference. According to the Renesas manufacturer datasheet, the device is positioned as a low-cost, low-jitter, high-performance clock synthesizer for these applications. Technically, the analog PLL multiplies or divides the reference frequency to develop the required output-clock relationships. Because the reference source and generated outputs are phase-related, the part is intended to provide coherent timing across multiple audio and processor domains. The available specifications identify one PLL circuit, clock or crystal input, and a maximum frequency of 80 MHz. Detailed jitter, output-accuracy, voltage, and temperature limits are not available in the supplied verification excerpts and should be confirmed in the manufacturer datasheet before precision-timing design sign-off. Typical applications include DVD players, MPEG-2-based multimedia systems, set-top equipment, audio processing platforms, and other embedded products requiring a 27 MHz reference and derived clocks. In these systems, the MK2745-21STR can replace separate oscillator and divider arrangements where its supported output set and electrical limits satisfy the design. The benefit is centralized clock management, while the tradeoff is dependence on correct reference configuration, output-enable sequencing, board-level return paths, and stable supply voltage. The primary design consideration is to verify every generated frequency and logic level against the exact system timing tree. Layout should provide a short, clean 27 MHz reference path, a controlled crystal or clock source, and low-impedance ground connections. Decoupling and unused-pin handling must follow the manufacturer datasheet, because incorrect implementation can add reference noise or create unintended clock activity even when the nominal output frequencies are correct. This page consolidates the verified manufacturer and distributor information, documents missing electrical details without guessing, compares the available same-family Renesas option, and provides application-specific design guidance. It is intended to support component identification, sourcing, and preliminary engineering evaluation while clearly separating confirmed specifications from parameters that still require datasheet review.
MK2745-24S - 160 MHz DVD/MPEG Clock Synthesizer | Renesas
The Renesas MK2745-24S is a low-cost, low-jitter clock synthesizer with PLL bypass for DVD and other MPEG-2-based equipment. It accepts a 27 MHz fundamental-mode crystal or clock input, uses analog phase-locked-loop techniques, and generates multiple audio output clocks, a processor clock, and two 27 MHz clocks. The device produces CMOS outputs, contains one clock-synthesis circuit, supports a maximum frequency of 160 MHz, and provides a maximum input-to-output ratio of 1:8. A clock synthesizer is a timing IC that derives one or more internally related clock signals from a common reference. Clock generators, phase-locked loops, and frequency synthesizers form the broader clock and timing IC category. By coordinating audio, processor, and reference clocks in one device, the MK2745-24S reduces the number of separate oscillators required by DVD, MPEG-2, set-top, and related multimedia systems. Its bypass mode provides a direct clock path when PLL operation is not required. Key features include a 27 MHz crystal or clock input, CMOS output technology, analog PLL operation with bypass, a maximum output frequency of 160 MHz, and an input-to-output ratio reaching 1:8. These characteristics suit designs that require multiple related clock domains while limiting board area. The single-circuit architecture is appropriate for centralized system timing rather than applications requiring numerous independent programmable outputs. The device is intended for DVD and MPEG-2-based multimedia platforms where processor timing, audio clocks, and 27 MHz reference clocks must remain related. Its architecture can reduce clock-generation complexity by sharing a common reference across multiple outputs. Engineers should still evaluate each output's frequency, jitter, drive level, and operating condition against the complete system timing budget before releasing a production design. Typical uses include DVD player clock trees, MPEG-2 set-top boxes, digital audio systems, processor clock generation, and multimedia equipment requiring 27 MHz references alongside derived audio or processor clocks. It may also be evaluated for legacy industrial and embedded video systems that use a 27 MHz source and CMOS-compatible clock inputs. The primary design consideration is that the verified source excerpt does not identify the exact package, pin count, supply voltage, or complete output-frequency mapping. Those details must be confirmed in the Renesas MK2745-24 datasheet before schematic capture or PCB layout. The suffix and programming or packaging options should not be assumed equivalent unless the manufacturer data explicitly confirms them. This page combines verified manufacturer and distributor information, pricing placeholders, drop-in-replacement verification status, and practical selection guidance. Unlike a raw distributor listing, it also identifies missing package and pinout data, distinguishes confirmed functions from unverified specifications, and explains where engineers must perform final datasheet validation.
MK2745-24STR - 160 MHz DVD/MPEG Clock Synthesizer | Renesas (Tape & Reel)
The Renesas MK2745-24STR is a low-cost, low-jitter clock synthesizer with PLL bypass for DVD and other MPEG-2-based equipment. It accepts a 27 MHz fundamental-mode crystal or clock input, uses analog phase-locked-loop techniques, and generates multiple audio output clocks, a processor clock, and two 27 MHz clocks. The device produces CMOS outputs, contains one clock-synthesis circuit, supports a maximum frequency of 160 MHz, and provides a maximum input-to-output ratio of 1:8. A clock synthesizer is a timing IC that derives one or more internally related clock signals from a common reference. Clock generators, phase-locked loops, and frequency synthesizers form the broader clock and timing IC category. By coordinating audio, processor, and reference clocks in one device, the MK2745-24STR reduces the number of separate oscillators required by DVD, MPEG-2, set-top, and related multimedia systems. Its bypass mode provides a direct clock path when PLL operation is not required. Key features include a 27 MHz crystal or clock input, CMOS output technology, analog PLL operation with bypass, a maximum output frequency of 160 MHz, and an input-to-output ratio reaching 1:8. These characteristics suit designs that require multiple related clock domains while limiting board area. The single-circuit architecture is appropriate for centralized system timing rather than applications requiring numerous independent programmable outputs. The device is intended for DVD and MPEG-2-based multimedia platforms where processor timing, audio clocks, and 27 MHz reference clocks must remain related. Its architecture can reduce clock-generation complexity by sharing a common reference across multiple outputs. Engineers should still evaluate each output's frequency, jitter, drive level, and operating condition against the complete system timing budget before releasing a production design. Typical uses include DVD player clock trees, MPEG-2 set-top boxes, digital audio systems, processor clock generation, and multimedia equipment requiring 27 MHz references alongside derived audio or processor clocks. It may also be evaluated for legacy industrial and embedded video systems that use a 27 MHz source and CMOS-compatible clock inputs. The primary design consideration is that the verified source excerpt does not identify the exact package, pin count, supply voltage, or complete output-frequency mapping. Those details must be confirmed in the Renesas MK2745-24 datasheet before schematic capture or PCB layout. The suffix and programming or packaging options should not be assumed equivalent unless the manufacturer data explicitly confirms them. This page combines verified manufacturer and distributor information, pricing placeholders, drop-in-replacement verification status, and practical selection guidance. Unlike a raw distributor listing, it also identifies missing package and pinout data, distinguishes confirmed functions from unverified specifications, and explains where engineers must perform final datasheet validation.
MK2746-01G - 27MHz USB-DVR Clock Synthesizer | Renesas
Renesas Electronics MK2746-01G is a low-cost, low-jitter clock and frequency synthesizer with a 27 MHz maximum output frequency, analog PLL with bypass capability, and CMOS outputs in a 16-pin TSSOP package. It accepts either a 27 MHz fundamental-mode crystal or clock input and is designed to generate the multiple clocks required by USB and video systems. The device includes one clock synthesizer circuit and provides an input-to-output ratio listed as 2:5 in the verified specifications. A clock synthesizer is a clock-and-timing IC that uses a phase-locked loop (PLL) to derive stable, related output frequencies from a reference source. Within the broader hierarchy of clock and timing ICs, frequency synthesizers sit above basic clock generators and below application-specific timing systems. The MK2746-01G belongs to this clock-and-timing category because it combines a reference input, analog PLL frequency multiplication, and CMOS clock outputs intended for USB-DVR equipment. The key feature of the MK2746-01G is its 27 MHz operating reference combined with analog PLL technology. A bypass path allows the reference clock to pass through without multiplication, which can simplify clock-tree design and support test or low-jitter operating conditions. The single-circuit implementation reduces the number of separate frequency-generation blocks required in a USB-DVR design, while the CMOS output interface connects directly to compatible downstream digital circuitry. The MK2746-01G is specified as a low-cost, low-jitter, high-performance clock synthesizer intended specifically for USB-DVR applications. Its 2:5 input-to-output ratio provides a defined multiplication relationship for designs operating from the specified 27 MHz reference. The 16-pin TSSOP package measures 4.40 mm in body width according to the verified distributor data, making it suitable for compact consumer-electronics and set-top-box layouts where a larger clock-generator package would be inconvenient. Typical uses include USB-DVR clock trees, USB interface timing, video timing systems, and compact consumer-electronics products that require multiple related clocks. In these systems, the crystal or external clock establishes the reference, the PLL generates the required multiplied clock, and the CMOS outputs distribute timing signals to USB and video functional blocks. The availability of PLL bypass provides an additional implementation option where preserving the reference clock may be desirable. Designers should confirm the complete output-frequency list, exact crystal-load requirements, output-drive configuration, supply limits, and pin-level connectivity in the Renesas MK2746 datasheet before layout release. Only the 27 MHz maximum frequency, analog PLL with bypass, CMOS output type, 2:5 ratio, single-circuit count, and 16-TSSOP format were confirmed by the supplied web data. Values not explicitly present in that data are identified separately rather than inferred. This product record combines verified manufacturer and distributor specifications, current sourcing information, a confirmed direct replacement, and practical implementation guidance. It distinguishes confirmed electrical facts from unavailable details, helping engineers evaluate the MK2746-01G for USB-DVR clock generation without relying on unverified assumptions.
MK2746-01GTR - 27MHz USB-DVR Clock Synthesizer | Renesas (Tape & Reel)
Renesas Electronics MK2746-01GTR is a low-cost, low-jitter clock and frequency synthesizer with a 27 MHz maximum output frequency, analog PLL with bypass capability, and CMOS outputs in a 16-pin TSSOP package. It accepts either a 27 MHz fundamental-mode crystal or clock input and is designed to generate the multiple clocks required by USB and video systems. The device includes one clock synthesizer circuit and provides an input-to-output ratio listed as 2:5 in the verified specifications. A clock synthesizer is a clock-and-timing IC that uses a phase-locked loop (PLL) to derive stable, related output frequencies from a reference source. Within the broader hierarchy of clock and timing ICs, frequency synthesizers sit above basic clock generators and below application-specific timing systems. The MK2746-01GTR belongs to this clock-and-timing category because it combines a reference input, analog PLL frequency multiplication, and CMOS clock outputs intended for USB-DVR equipment. The key feature of the MK2746-01GTR is its 27 MHz operating reference combined with analog PLL technology. A bypass path allows the reference clock to pass through without multiplication, which can simplify clock-tree design and support test or low-jitter operating conditions. The single-circuit implementation reduces the number of separate frequency-generation blocks required in a USB-DVR design, while the CMOS output interface connects directly to compatible downstream digital circuitry. The MK2746-01GTR is specified as a low-cost, low-jitter, high-performance clock synthesizer intended specifically for USB-DVR applications. Its 2:5 input-to-output ratio provides a defined multiplication relationship for designs operating from the specified 27 MHz reference. The 16-pin TSSOP package measures 4.40 mm in body width according to the verified distributor data, making it suitable for compact consumer-electronics and set-top-box layouts where a larger clock-generator package would be inconvenient. Typical uses include USB-DVR clock trees, USB interface timing, video timing systems, and compact consumer-electronics products that require multiple related clocks. In these systems, the crystal or external clock establishes the reference, the PLL generates the required multiplied clock, and the CMOS outputs distribute timing signals to USB and video functional blocks. The availability of PLL bypass provides an additional implementation option where preserving the reference clock may be desirable. Designers should confirm the complete output-frequency list, exact crystal-load requirements, output-drive configuration, supply limits, and pin-level connectivity in the Renesas MK2746 datasheet before layout release. Only the 27 MHz maximum frequency, analog PLL with bypass, CMOS output type, 2:5 ratio, single-circuit count, and 16-TSSOP format were confirmed by the supplied web data. Values not explicitly present in that data are identified separately rather than inferred. This product record combines verified manufacturer and distributor specifications, current sourcing information, a confirmed direct replacement, and practical implementation guidance. It distinguishes confirmed electrical facts from unavailable details, helping engineers evaluate the MK2746-01GTR for USB-DVR clock generation without relying on unverified assumptions.
MK2746G - 133.33MHz Clock Synthesizer | Renesas | DVD
The Renesas Electronics MK2746G is a clock and frequency synthesizer IC delivering a 133.33 MHz output for DVD and other MPEG2-based systems, supplied in a 16-pin TSSOP package measuring 4.40 mm wide. The verified distributor listing identifies one clock or frequency synthesizer channel and a maximum listed frequency of 133.33 MHz. According to the available Renesas documentation, the MK2746 family is a low-cost, low-jitter clock synthesizer designed around an analog phase-locked-loop technique. A clock synthesizer is a timing semiconductor that accepts or generates a reference frequency and produces one or more stable clock signals for digital systems. In the hierarchy of electronic components, it belongs to clock and timing ICs, frequency synthesizers, and phase-locked-loop devices. This category synchronizes processors, memories, converters, video pipelines, and communications circuitry, making clock quality and distribution important to system-level data integrity. The MK2746 accepts a 27 MHz fundamental-mode crystal or clock input and produces the timing signals required by DVD and MPEG2 applications. Its analog PLL architecture supports frequency synthesis while maintaining a compact implementation. The verified listing specifically confirms the 133.33 MHz class of output, low-cost positioning, and low-jitter operation, but the supplied source snippets do not expose the complete output-frequency table, PLL settings, supply limits, or jitter specification. The device is suitable for DVD players, DVD-related set-top equipment, MPEG2 media systems, and other consumer electronics that need a dedicated reference clock instead of a general-purpose high-speed clock generator. In these systems, the synthesizer can establish the timing relationship between a crystal oscillator and downstream logic, provided the board layout, decoupling, and output loading satisfy the manufacturer recommendations. PCB design should preserve a short, controlled return path from the crystal or clock source and minimize capacitance around high-impedance timing nodes. The TSSOP footprint also requires careful solder-paste and land-pattern design. Before production use, engineers should download the official MK2746 datasheet and verify supply voltage, absolute maximum ratings, pin functions, output-drive capability, load capacitance, and jitter limits. This page consolidates the verified distributor identity, package information, manufacturer documentation link, clock function, application fit, and sourcing references. It does not infer missing electrical values, pin assignments, or drop-in substitutes; those fields remain explicitly marked for validation rather than being presented as confirmed engineering data.
MK2746GLF - 133.33MHz DVD/MPEG Clock Source | Renesas
Renesas Electronics MK2746GLF is a 133.33 MHz DVD/MPEG clock source and clock synthesizer packaged in a 16-pin TSSOP. It is intended for timing applications requiring a stable reference associated with DVD and MPEG clock domains. The verified product information identifies the device as a clock generator, PLL, or frequency-synthesizer-class integrated circuit, with a 4.40 mm-wide 16-TSSOP package. A clock synthesizer is an integrated timing device that accepts or derives timing information and distributes clock signals needed by digital systems. Within the semiconductor hierarchy, a clock synthesizer belongs to clock and timing ICs, alongside clock generators, phase-locked loops, jitter cleaners, dividers, and buffer circuits. The MK2746GLF serves the practical role of producing the timing reference required by multimedia processing chains and other systems that synchronize digital operations. The principal verified headline specification is a 133.33 MHz clock associated with the DVD/MPEG clock-source function. The 16-TSSOP package provides a compact surface-mount option for consumer electronics, optical-disc systems, set-top equipment, and other timing subsystems. The package data identifies a body width of 4.40 mm, although complete land-pattern dimensions, exposed-pad details, and pin functions require consultation of the manufacturer datasheet. Its role in a DVD/MPEG system is primarily reference generation. A consistent clock helps coordinate data processing, transport logic, and connected digital subsystems. Unlike a general-purpose microcontroller, the MK2746GLF is dedicated to timing rather than executing application software. Compared with an on-board crystal oscillator and discrete divider network, an integrated clock synthesizer can consolidate clock-generation functions into one package, although final jitter, accuracy, supply range, and output count must be checked against the system timing budget. Typical deployment positions include DVD and MPEG multimedia clocking, consumer-video timing, set-top-box signal chains, and embedded systems that already specify the MK2746GLF as a reference-source device. In each case, designers should verify frequency tolerance, output topology, power requirements, startup behavior, and decoupling requirements against the exact Renesas documentation before releasing a production layout. A key integration consideration is that frequency alone does not establish end-to-end timing quality. Board-level supply noise, trace loading, clock-routing topology, output jitter, and grounding directly affect downstream performance. The 16-TSSOP footprint should therefore be treated as a timing-sensitive component placement, with short clock paths, controlled return current, and the power and ground connections specified by the manufacturer followed exactly. This page consolidates verified distributor, manufacturer-linked, package, application, comparison, and design information while clearly identifying parameters that still require confirmation from the complete datasheet.
MK2746GLFTR - 133.33MHz DVD/MPEG Clock Source | Renesas (Tape & Reel)
Renesas Electronics MK2746GLFTR is a 133.33 MHz DVD/MPEG clock source and clock synthesizer packaged in a 16-pin TSSOP. It is intended for timing applications requiring a stable reference associated with DVD and MPEG clock domains. The verified product information identifies the device as a clock generator, PLL, or frequency-synthesizer-class integrated circuit, with a 4.40 mm-wide 16-TSSOP package. A clock synthesizer is an integrated timing device that accepts or derives timing information and distributes clock signals needed by digital systems. Within the semiconductor hierarchy, a clock synthesizer belongs to clock and timing ICs, alongside clock generators, phase-locked loops, jitter cleaners, dividers, and buffer circuits. The MK2746GLFTR serves the practical role of producing the timing reference required by multimedia processing chains and other systems that synchronize digital operations. The principal verified headline specification is a 133.33 MHz clock associated with the DVD/MPEG clock-source function. The 16-TSSOP package provides a compact surface-mount option for consumer electronics, optical-disc systems, set-top equipment, and other timing subsystems. The package data identifies a body width of 4.40 mm, although complete land-pattern dimensions, exposed-pad details, and pin functions require consultation of the manufacturer datasheet. Its role in a DVD/MPEG system is primarily reference generation. A consistent clock helps coordinate data processing, transport logic, and connected digital subsystems. Unlike a general-purpose microcontroller, the MK2746GLFTR is dedicated to timing rather than executing application software. Compared with an on-board crystal oscillator and discrete divider network, an integrated clock synthesizer can consolidate clock-generation functions into one package, although final jitter, accuracy, supply range, and output count must be checked against the system timing budget. Typical deployment positions include DVD and MPEG multimedia clocking, consumer-video timing, set-top-box signal chains, and embedded systems that already specify the MK2746GLFTR as a reference-source device. In each case, designers should verify frequency tolerance, output topology, power requirements, startup behavior, and decoupling requirements against the exact Renesas documentation before releasing a production layout. A key integration consideration is that frequency alone does not establish end-to-end timing quality. Board-level supply noise, trace loading, clock-routing topology, output jitter, and grounding directly affect downstream performance. The 16-TSSOP footprint should therefore be treated as a timing-sensitive component placement, with short clock paths, controlled return current, and the power and ground connections specified by the manufacturer followed exactly. This page consolidates verified distributor, manufacturer-linked, package, application, comparison, and design information while clearly identifying parameters that still require confirmation from the complete datasheet.
MK2746GTR - 133.33MHz Clock Synthesizer | Renesas | DVD (Tape & Reel)
The Renesas Electronics MK2746GTR is a clock and frequency synthesizer IC delivering a 133.33 MHz output for DVD and other MPEG2-based systems, supplied in a 16-pin TSSOP package measuring 4.40 mm wide. The verified distributor listing identifies one clock or frequency synthesizer channel and a maximum listed frequency of 133.33 MHz. According to the available Renesas documentation, the MK2746 family is a low-cost, low-jitter clock synthesizer designed around an analog phase-locked-loop technique. A clock synthesizer is a timing semiconductor that accepts or generates a reference frequency and produces one or more stable clock signals for digital systems. In the hierarchy of electronic components, it belongs to clock and timing ICs, frequency synthesizers, and phase-locked-loop devices. This category synchronizes processors, memories, converters, video pipelines, and communications circuitry, making clock quality and distribution important to system-level data integrity. The MK2746 accepts a 27 MHz fundamental-mode crystal or clock input and produces the timing signals required by DVD and MPEG2 applications. Its analog PLL architecture supports frequency synthesis while maintaining a compact implementation. The verified listing specifically confirms the 133.33 MHz class of output, low-cost positioning, and low-jitter operation, but the supplied source snippets do not expose the complete output-frequency table, PLL settings, supply limits, or jitter specification. The device is suitable for DVD players, DVD-related set-top equipment, MPEG2 media systems, and other consumer electronics that need a dedicated reference clock instead of a general-purpose high-speed clock generator. In these systems, the synthesizer can establish the timing relationship between a crystal oscillator and downstream logic, provided the board layout, decoupling, and output loading satisfy the manufacturer recommendations. PCB design should preserve a short, controlled return path from the crystal or clock source and minimize capacitance around high-impedance timing nodes. The TSSOP footprint also requires careful solder-paste and land-pattern design. Before production use, engineers should download the official MK2746 datasheet and verify supply voltage, absolute maximum ratings, pin functions, output-drive capability, load capacitance, and jitter limits. This page consolidates the verified distributor identity, package information, manufacturer documentation link, clock function, application fit, and sourcing references. It does not infer missing electrical values, pin assignments, or drop-in substitutes; those fields remain explicitly marked for validation rather than being presented as confirmed engineering data.
MK2761AS - 27MHz Multi-Output Clock Synthesizer | Renesas
Renesas Electronics MK2761AS is a 27MHz clock and frequency synthesizer IC that accepts a crystal or clock input and generates multiple CMOS output clocks for set-top box applications. It uses an analog phase-locked loop (PLL), includes PLL bypass capability, and is housed in a 16-pin SOIC package measuring 0.154 inches, or 3.90 mm, in width. A clock synthesizer is a clock-and-timing integrated circuit that derives one or more stable digital timing signals from a reference oscillator. Clock generation belongs to the oscillator, frequency synthesis, clock management, and timing IC hierarchy before connecting to broader clock-and-timing and semiconductor systems. In consumer equipment, a synthesizer can distribute related reference-derived clocks while reducing the number of separate oscillators required. The MK2761AS supports a maximum frequency of 27MHz and accepts either a crystal or external clock. Its CMOS outputs suit digital logic that requires repeatable clock edges, while the PLL-bypass path provides flexibility when the design must use or pass through the reference clock. The 16-pin SOIC package is a surface-mount option compatible with conventional PCB assembly and inspection processes. This device is specifically described for set-top box clock generation, where digital video, audio, control, and interface circuitry may require coordinated timing. It can also be evaluated for other consumer or embedded systems that use a 27MHz reference and need several derived clocks, provided each output frequency, duty cycle, timing level, and load requirement is confirmed against the manufacturer datasheet. The principal design task is verifying the complete output-frequency plan and external crystal or clock network. Board placement should minimize clock routing length and noise pickup, while output loading and trace capacitance should match the device’s stated drive and timing requirements. Because only summary specifications were provided here, voltage ranges, current limits, jitter, output counts, pin functions, and exact frequency ratios require confirmation before release to production. This product record consolidates verified distributor information, package identification, functional characteristics, design cautions, and commercial availability. It also separates confirmed facts from missing datasheet parameters, helping engineers evaluate the MK2761AS for new designs, replacements, and set-top box clock-distribution requirements without assuming unverified specifications.
MK2761ASLF - 27MHz Set-Top Clock Synthesizer | Renesas
The Renesas Electronics MK2761ASLF is a 27 MHz set-top clock source and frequency-synthesizer IC housed in a 16-pin SOIC package. It uses analog phase-locked-loop techniques to accept a 27 MHz crystal or clock input and produce multiple output clocks. The device is identified as a low-cost, low-jitter, high-performance clock synthesizer designed specifically for set-top box applications. A clock synthesizer is a timing IC that establishes and distributes reference clocks throughout an electronic system. In the broader hierarchy, it belongs to clock and frequency generation, which supports clock and timing ICs and ultimately semiconductor timing infrastructure. Unlike a simple oscillator that provides one frequency, a synthesizer can generate several related clock outputs from a common reference, helping synchronize video, audio, communications, and control subsystems in a set-top box. The MK2761ASLF combines a 27 MHz reference input capability with analog PLL-based frequency synthesis and multiple clock outputs. Its 16-pin SOIC package provides a compact surface-mount format suitable for mainstream consumer-electronics boards. The verified product information specifically identifies the part as a set-top clock source, clock generator, PLL, and frequency synthesizer, supporting its use in designs requiring coordinated timing from one reference source. Its architecture centers on a 27 MHz crystal or clock reference. This reference can be multiplied or divided through the PLL to obtain the clock signals required by system functions. Exact output-frequency settings, loop bandwidth, output jitter, supply-voltage range, operating-temperature limits, and configuration details are not present in the supplied verified records and must therefore be confirmed against the manufacturer datasheet before schematic release or firmware programming. Typical applications include digital set-top boxes, cable receivers, television front ends, multimedia terminals, and other consumer equipment that requires multiple coordinated clocks. The MK2761ASLF is most appropriate when the board already uses a 27 MHz reference and expects an analog-PLL clock-source solution. Its advantage is consolidation of multiple timing requirements into one dedicated IC rather than relying exclusively on discrete oscillators or separate frequency-generation blocks. Designers should verify all available output frequencies, pin-level enable functions, crystal-load requirements, PLL configuration method, supply sequencing, and output-drive characteristics in the manufacturer datasheet. PCB planning should reserve the exact 16-pin SOIC footprint, provide a short and clean reference path, and follow the recommended grounding and decoupling arrangement. Software or hardware control of the synthesized clocks should also be confirmed before assuming that every output can be independently programmed. This product data consolidates verified distributor classification, package information, pricing availability, and the known 27 MHz analog-PLL architecture. It also identifies the specific datasheet, pinout, lifecycle, compliance, and substitute information that still requires confirmation, helping engineers distinguish documented facts from values that remain unverified.
MK2761ASTR - 27MHz Multi-Output Clock Synthesizer | Renesas (Tape & Reel)
Renesas Electronics MK2761ASTR is a 27MHz clock and frequency synthesizer IC that accepts a crystal or clock input and generates multiple CMOS output clocks for set-top box applications. It uses an analog phase-locked loop (PLL), includes PLL bypass capability, and is housed in a 16-pin SOIC package measuring 0.154 inches, or 3.90 mm, in width. A clock synthesizer is a clock-and-timing integrated circuit that derives one or more stable digital timing signals from a reference oscillator. Clock generation belongs to the oscillator, frequency synthesis, clock management, and timing IC hierarchy before connecting to broader clock-and-timing and semiconductor systems. In consumer equipment, a synthesizer can distribute related reference-derived clocks while reducing the number of separate oscillators required. The MK2761ASTR supports a maximum frequency of 27MHz and accepts either a crystal or external clock. Its CMOS outputs suit digital logic that requires repeatable clock edges, while the PLL-bypass path provides flexibility when the design must use or pass through the reference clock. The 16-pin SOIC package is a surface-mount option compatible with conventional PCB assembly and inspection processes. This device is specifically described for set-top box clock generation, where digital video, audio, control, and interface circuitry may require coordinated timing. It can also be evaluated for other consumer or embedded systems that use a 27MHz reference and need several derived clocks, provided each output frequency, duty cycle, timing level, and load requirement is confirmed against the manufacturer datasheet. The principal design task is verifying the complete output-frequency plan and external crystal or clock network. Board placement should minimize clock routing length and noise pickup, while output loading and trace capacitance should match the device’s stated drive and timing requirements. Because only summary specifications were provided here, voltage ranges, current limits, jitter, output counts, pin functions, and exact frequency ratios require confirmation before release to production. This product record consolidates verified distributor information, package identification, functional characteristics, design cautions, and commercial availability. It also separates confirmed facts from missing datasheet parameters, helping engineers evaluate the MK2761ASTR for new designs, replacements, and set-top box clock-distribution requirements without assuming unverified specifications.
MK2771-15R - 100MHz VCXO Clock Synthesizer | Renesas
Renesas Electronics MK2771-15R is a low-cost, low-jitter VCXO and clock synthesizer IC designed for set-top boxes, with a maximum output frequency of 100 MHz and CMOS clock outputs in a 28-QSOP package. Its on-chip voltage-controlled crystal oscillator accepts a 0 V to 3 V control voltage, allowing the generated clock output to be varied by as much as ±100 ppm. The device includes one PLL, accepts a crystal input, supports a 1:8 input-to-output ratio, and does not use differential clock inputs or outputs. A VCXO is a crystal oscillator whose frequency can be adjusted with an external control voltage. It belongs to the clock oscillator and timing-control hierarchy, where a stable crystal reference is combined with voltage-controlled tuning to compensate for reference-clock errors. A clock synthesizer performs the related function of generating or distributing multiple timing signals. The MK2771-15R integrates these concepts for consumer set-top equipment where adjustable, low-jitter timing is useful without requiring a high-cost external frequency-control solution. Key features include a maximum clock frequency of 100 MHz, a VCXO tuning range of ±100 ppm, a 0 V to 3 V control-voltage range, low-cost implementation, and low-jitter operation. The CMOS output architecture is suitable for digital logic in set-top boxes, while the 1:8 ratio provides a defined relationship between the crystal input and synthesized output. These characteristics make the device relevant to designs requiring a tunable reference clock rather than a completely fixed-frequency oscillator. Technically, the MK2771-15R combines a crystal-based oscillator, voltage-controlled frequency adjustment, and clock-synthesis functions on one integrated circuit. The control voltage applied to the VCXO changes the output frequency around the crystal-defined nominal condition. Its single-circuit implementation simplifies PCB requirements compared with a discrete crystal oscillator plus separate synthesizer. The available data specifies CMOS outputs, a crystal input, and single-ended rather than differential signaling, so downstream circuitry must be designed for the corresponding signal format. Typical uses include set-top box main timing, tuner and video-processing clock distribution, MPEG transport-stream interface clocking, and other consumer television equipment requiring a tunable low-jitter clock source. The device can also serve as a dedicated timing IC in designs where its 100 MHz ceiling and ±100 ppm adjustment capability satisfy the system clock requirements. Designers should verify the exact crystal frequency, loop filtering, output enable behavior, decoupling requirements, and output-drive configuration against the manufacturer datasheet before layout release. The 28-QSOP footprint requires a compact surface-mount layout, while the single-ended CMOS outputs require controlled routing and return paths to minimize clock-edge degradation. This page consolidates the verified manufacturer and distributor information, distinguishes documented parameters from unavailable details, and provides application guidance, purchasing context, and design cautions without presenting unverified specifications as fact.
MK2771-15RTR - 100MHz VCXO Clock Synthesizer | Renesas (Tape & Reel)
Renesas Electronics MK2771-15RTR is a low-cost, low-jitter VCXO and clock synthesizer IC designed for set-top boxes, with a maximum output frequency of 100 MHz and CMOS clock outputs in a 28-QSOP package. Its on-chip voltage-controlled crystal oscillator accepts a 0 V to 3 V control voltage, allowing the generated clock output to be varied by as much as ±100 ppm. The device includes one PLL, accepts a crystal input, supports a 1:8 input-to-output ratio, and does not use differential clock inputs or outputs. A VCXO is a crystal oscillator whose frequency can be adjusted with an external control voltage. It belongs to the clock oscillator and timing-control hierarchy, where a stable crystal reference is combined with voltage-controlled tuning to compensate for reference-clock errors. A clock synthesizer performs the related function of generating or distributing multiple timing signals. The MK2771-15RTR integrates these concepts for consumer set-top equipment where adjustable, low-jitter timing is useful without requiring a high-cost external frequency-control solution. Key features include a maximum clock frequency of 100 MHz, a VCXO tuning range of ±100 ppm, a 0 V to 3 V control-voltage range, low-cost implementation, and low-jitter operation. The CMOS output architecture is suitable for digital logic in set-top boxes, while the 1:8 ratio provides a defined relationship between the crystal input and synthesized output. These characteristics make the device relevant to designs requiring a tunable reference clock rather than a completely fixed-frequency oscillator. Technically, the MK2771-15RTR combines a crystal-based oscillator, voltage-controlled frequency adjustment, and clock-synthesis functions on one integrated circuit. The control voltage applied to the VCXO changes the output frequency around the crystal-defined nominal condition. Its single-circuit implementation simplifies PCB requirements compared with a discrete crystal oscillator plus separate synthesizer. The available data specifies CMOS outputs, a crystal input, and single-ended rather than differential signaling, so downstream circuitry must be designed for the corresponding signal format. Typical uses include set-top box main timing, tuner and video-processing clock distribution, MPEG transport-stream interface clocking, and other consumer television equipment requiring a tunable low-jitter clock source. The device can also serve as a dedicated timing IC in designs where its 100 MHz ceiling and ±100 ppm adjustment capability satisfy the system clock requirements. Designers should verify the exact crystal frequency, loop filtering, output enable behavior, decoupling requirements, and output-drive configuration against the manufacturer datasheet before layout release. The 28-QSOP footprint requires a compact surface-mount layout, while the single-ended CMOS outputs require controlled routing and return paths to minimize clock-edge degradation. This page consolidates the verified manufacturer and distributor information, distinguishes documented parameters from unavailable details, and provides application guidance, purchasing context, and design cautions without presenting unverified specifications as fact.
MK2772-01S - VCXO and Set-Top Clock Source | Renesas
Renesas Electronics MK2772-01S is a low-cost, low-jitter VCXO and clock synthesizer designed for set-top box clocking in a 20-pin SOIC package. It accepts a 13.5 MHz crystal reference and uses an on-chip voltage-controlled crystal oscillator with a 0 V to 3 V control input. The control range produces approximately plus or minus 100 ppm output-frequency variation, while the clock-generation section supports CMOS clock outputs up to 27 MHz. A VCXO, or voltage-controlled crystal oscillator, is a crystal oscillator whose frequency can be adjusted by an external voltage. The MK2772-01S combines this oscillator with an analog phase-locked loop and clock synthesis functions in one clock-and-timing IC. This integration supports set-top box designs that require a stable reference frequency plus one or more derived system clocks without implementing a complete discrete oscillator and PLL subsystem. The principal features include a 13.5 MHz crystal input, a 0 V to 3 V VCXO tuning-control range, approximately plus or minus 100 ppm frequency adjustment, CMOS output technology, and operation from a 4.75 V supply as reported in the verified product data. The integrated PLL includes bypass capability, providing a practical path for system bring-up, test, or clock-source fallback. The 20-SOIC package supports conventional surface-mount PCB assembly. Technically, the device uses MicroClock VCXO and analog PLL techniques to derive clocks from an economical crystal. The tuning voltage provides coarse frequency control where the target equipment needs calibration across cable, tuner, or network synchronization requirements. Because the device is identified as obsolete in verified component listings, engineers should avoid new designs and evaluate current-generation clock generators when creating a new board. Typical uses include legacy set-top box main boards, digital video broadcast receivers, and embedded video equipment requiring a stable 13.5 MHz reference with synthesized CMOS clocks. The component may also appear in industrial or communications equipment designed around the same legacy clock architecture, provided its electrical limits, timing margins, and operating-temperature requirements are verified. Design engineers must confirm the complete pinout, crystal load requirement, output enable behavior, control-voltage polarity, and output-drive configuration against the Renesas datasheet before layout or replacement work. Because the component is obsolete, a mechanically similar clock IC is not automatically a safe replacement: its pinout, supply voltage, PLL architecture, tuning range, and output standards must match. This page consolidates the verified manufacturer and distributor information, lifecycle warning, pricing evidence, candidate replacements, comparison parameters, and practical design cautions for engineers evaluating the MK2772-01S or a legacy-board repair.
MK2772-01STR - VCXO and Set-Top Clock Source | Renesas (Tape & Reel)
Renesas Electronics MK2772-01STR is a low-cost, low-jitter VCXO and clock synthesizer designed for set-top box clocking in a 20-pin SOIC package. It accepts a 13.5 MHz crystal reference and uses an on-chip voltage-controlled crystal oscillator with a 0 V to 3 V control input. The control range produces approximately plus or minus 100 ppm output-frequency variation, while the clock-generation section supports CMOS clock outputs up to 27 MHz. A VCXO, or voltage-controlled crystal oscillator, is a crystal oscillator whose frequency can be adjusted by an external voltage. The MK2772-01STR combines this oscillator with an analog phase-locked loop and clock synthesis functions in one clock-and-timing IC. This integration supports set-top box designs that require a stable reference frequency plus one or more derived system clocks without implementing a complete discrete oscillator and PLL subsystem. The principal features include a 13.5 MHz crystal input, a 0 V to 3 V VCXO tuning-control range, approximately plus or minus 100 ppm frequency adjustment, CMOS output technology, and operation from a 4.75 V supply as reported in the verified product data. The integrated PLL includes bypass capability, providing a practical path for system bring-up, test, or clock-source fallback. The 20-SOIC package supports conventional surface-mount PCB assembly. Technically, the device uses MicroClock VCXO and analog PLL techniques to derive clocks from an economical crystal. The tuning voltage provides coarse frequency control where the target equipment needs calibration across cable, tuner, or network synchronization requirements. Because the device is identified as obsolete in verified component listings, engineers should avoid new designs and evaluate current-generation clock generators when creating a new board. Typical uses include legacy set-top box main boards, digital video broadcast receivers, and embedded video equipment requiring a stable 13.5 MHz reference with synthesized CMOS clocks. The component may also appear in industrial or communications equipment designed around the same legacy clock architecture, provided its electrical limits, timing margins, and operating-temperature requirements are verified. Design engineers must confirm the complete pinout, crystal load requirement, output enable behavior, control-voltage polarity, and output-drive configuration against the Renesas datasheet before layout or replacement work. Because the component is obsolete, a mechanically similar clock IC is not automatically a safe replacement: its pinout, supply voltage, PLL architecture, tuning range, and output standards must match. This page consolidates the verified manufacturer and distributor information, lifecycle warning, pricing evidence, candidate replacements, comparison parameters, and practical design cautions for engineers evaluating the MK2772-01STR or a legacy-board repair.
MS32340 - Quad 25/28G CDR with Adaptive Equalization
The MS32340 is a four-channel 25.78 Gbps / 28.05 Gbps clock and data recovery (CDR) device with integrated adaptive equalization, supplied in a SIP package. Its primary verified functions are four-channel clock and data recovery, support for both 25.78 Gbps and 28.05 Gbps data rates, and adaptive equalization for channel-loss compensation. The available source identifies the device as the ms32340 (SIP) Quad 25/28G CDR with Integrated Equal, but it does not provide a manufacturer identity, official manufacturer datasheet URL, complete pinout, lifecycle status, pricing, or a detailed electrical specification table. A CDR is a signal-integrity semiconductor that recovers a usable clock from a serialized high-speed data stream and aligns data with that recovered timing reference. In the broader hierarchy, a CDR is a clock-and-timing IC, a high-speed interface component, and part of the semiconductor family used in optical and copper data links. Adaptive equalization compensates for frequency-dependent channel loss encountered when data travels through connectors, printed-circuit-board traces, cables, or other interconnect media. Integrating equalization with clock and data recovery can reduce the number of separate high-speed signal-chain blocks required. The verified MS32340 description identifies four channels and two principal rates: 25.78 Gbps and 28.05 Gbps. These rates are suitable for evaluating next-generation high-speed links, but the supplied data does not state the associated line rate standard, modulation format, reference-clock requirement, equalization reach, jitter performance, power consumption, or operating temperature. It also does not specify whether the device transmits data, receives data, or performs both directions. Those details must be obtained from the original manufacturer documentation before schematic capture or production release. The part is identified as a SIP device, but the available source does not state pin count, body dimensions, lead spacing, thermal resistance, mounting orientation, or supported package variant. Because no authoritative manufacturer datasheet was supplied, the pinout is left null rather than reconstructed from secondary listings. Similarly, the device’s RoHS, REACH, AEC-Q100, lead-free, and halogen-free status cannot be inferred from the product category. MS32340 should be treated as a specialized high-speed CDR rather than a general-purpose regulator or microcontroller. Its integrated adaptive equalization makes it a candidate for prototype evaluation in high-speed communications equipment, optical-module signal paths, backplane links, and test equipment. The key design risk is incomplete documentation: system integrators should verify all timing, reach, loss-tolerance, power, and interface specifications against the manufacturer’s approved datasheet and reference designs. This page preserves only the verified MS32340 facts and does not invent missing electrical or commercial values.