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ADF4002BCPZ - 400 MHz PLL Frequency Synthesizer | Analog Devices
ADF4002BCPZ

ADF4002BCPZ - 400 MHz PLL Frequency Synthesizer | Analog Devices

The Analog Devices ADF4002BCPZ is a phase detector and PLL frequency synthesizer with a 400 MHz maximum input frequency, supplied in a 20-lead WFQFN exposed-pad package. It operates from a 3.3 V power supply and includes a separate charge-pump supply that allows the tuning voltage to be extended. The device also provides programmable charge-pump currents and a 3-wire serial interface for configuration and control. A PLL frequency synthesizer is a timing-control integrated circuit that locks an output frequency to a stable reference frequency. Its phase-frequency detector compares the divided feedback signal with the reference signal, while the charge pump converts phase error into a tuning voltage for an external voltage-controlled oscillator or voltage-controlled crystal oscillator. In the broader semiconductor hierarchy, the ADF4002 belongs to the clock and timing IC family and ultimately to the PLL and frequency-synthesizer category. The ADF4002 integrates a low-noise digital phase-frequency detector, a precision charge pump, a programmable reference divider, and a programmable N divider. According to the Analog Devices product page, the 14-bit reference counter supports selectable reference-input frequencies. Programmable charge-pump currents give the circuit additional control when optimizing loop behavior, reference spur performance, and phase noise for a particular synthesizer implementation. The 400 MHz input bandwidth makes the ADF4002 relevant to wireless receiver and transmitter local-oscillator paths, especially up-conversion and down-conversion stages. Its architecture supports integer-N frequency synthesis. The separate VP charge-pump supply is useful when the required oscillator tuning range exceeds the normal operating range of the main power rail, while the 3.3 V supply architecture supports compact RF and communications systems. Typical uses include wireless transceiver local oscillators, receiver and transmitter up-converters and down-converters, frequency-locked reference sources, and other RF signal chains requiring programmable division and phase correction. Engineers should preserve the exposed-pad grounding and supply-decoupling layout shown in the manufacturer datasheet. The serial interface uses CLK, DATA, and LE signals, and 24-bit words are transferred on rising clock edges when latch enable is asserted. Because this is an external-VCO PLL rather than a complete integrated RF synthesizer, component selection, loop-filter design, reference stability, and VCO phase-noise performance remain external design tasks. The separate charge-pump supply also requires careful decoupling and isolation from sensitive RF and reference circuitry. This page combines the verified Analog Devices product information, distributor listings, package details, design considerations, commercial availability, and a documented assessment of drop-in replacement evidence. The verified sources do not identify five pin-to-pin-compatible alternatives, so the alternatives list is intentionally limited rather than padded with unsupported cross-package or packaging-only substitutes.

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ADF4007BCP - 7.5GHz Divider/PLL Synthesizer | Analog Devices
ADF4007BCP

ADF4007BCP - 7.5GHz Divider/PLL Synthesizer | Analog Devices

The Analog Devices ADF4007BCP is a high-frequency divider and phase-locked-loop synthesizer with 7.5 GHz RF bandwidth, a 120 MHz maximum phase-frequency-detector frequency, and a 20-lead LFCSP package with an exposed pad. It operates from a 3.3 V supply, supports 3 V systems, and includes a separate charge-pump supply for an extended tuning-voltage range. A phase-locked loop, or PLL, is a feedback-controlled frequency-synthesis circuit in which a phase-frequency detector compares a reference signal with a divided feedback signal. A charge pump and external loop filter then convert phase error into a tuning voltage for a voltage-controlled oscillator. The ADF4007BCP integrates the phase detector, precision charge pump, programmable divider, and prescaler used to construct such a loop. The ADF4007BCP supports RF operation to 7.5 GHz and phase-frequency-detector operation to 120 MHz. Its reference divider is permanently set to 2, permitting an external REFIN frequency up to 240 MHz. Divide ratios are selected through two external control pins, while RSET controls charge-pump current. A separate VP supply allows the tuning-voltage range to exceed what the main 3.3 V supply alone would permit. The device also includes hardware power-down control for system-state management. According to the Analog Devices ADF4007 data sheet, the loop-filter values derived with ADIsimPLL provide typical phase noise of -100 dBc/Hz at a 10 kHz carrier offset, while the loop filter attenuates spurs below -90 dBc. These figures make the synthesizer suitable for RF communication systems requiring predictable phase noise and spur performance. Typical uses include wireless transceiver frequency synthesis, microwave and RF test equipment, and communications infrastructure. In a PLL implementation, the ADF4007BCP compares the divided feedback output with REFIN and drives a VCO tuning input through an external charge-pump loop filter. Designers must select divider ratios, loop bandwidth, and passive values that satisfy the required phase-noise and spur limits. A key implementation consideration is the exposed thermal pad. The data sheet controls its connection to ground and provides thermal and electrical layout guidance. Input, reference, charge-pump, and loop-filter connections should follow the manufacturer’s recommended layout to avoid introducing additional phase noise or instability. This page consolidates the verified manufacturer information, available ordering data, same-package cross-references, comparison points, and practical design guidance for engineers evaluating the ADF4007BCP.

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ADF4007BCPZ - 7.5 GHz PLL Synthesizer | Analog Devices
ADF4007BCPZ

ADF4007BCPZ - 7.5 GHz PLL Synthesizer | Analog Devices

The Analog Devices ADF4007BCPZ is a high-frequency divider and phase-locked-loop synthesizer operating up to 7.5 GHz on the RF side and up to 120 MHz at the phase-frequency detector. It operates from a 2.7 V to 3.3 V supply, draws 15 mA, and is packaged in a 20-pin LFCSP with an exposed pad. A phase-locked loop, or PLL, is a frequency-control architecture that locks an output oscillator to a stable reference. It belongs to the clock and timing hierarchy, where a phase-frequency detector compares two signals, a charge pump produces an adjustment voltage, and a loop filter controls loop dynamics. The ADF4007 supplies the detector, charge pump, and programmable divider functions, while an external VCO and loop filter complete the synthesis loop. The ADF4007BCPZ supports an RF operating range of 20 MHz to 7.5 GHz, a maximum PFD frequency of 120 MHz, and a permanently fixed reference divide ratio of 2. Its reference input can operate up to 240 MHz. Two external control pins set the divider or prescaler value, allowing the integer-N division ratio to be configured for the target output frequency. Its low-noise digital PFD and precision charge pump support low phase-noise synthesis when paired with a correctly designed loop filter. The manufacturer datasheet shows approximately -100 dBc/Hz phase noise at a 10 kHz offset from the carrier in the example circuit. Loop-filter selection also attenuates spurs, with the illustrated circuit producing spurs below -90 dBc. Typical uses include wireless transceiver local oscillators, microwave synthesizers, frequency converters, test-and-measurement signal sources, and communication equipment requiring programmable division from a reference clock. The 3.3 V supply arrangement also fits systems where the RF section and charge-pump headroom are managed as separate functions. When implementing the device, use the manufacturer pin-description table to assign all 20 LFCSP connections and preserve the exposed-pad grounding requirement. Component values for the loop filter and RSET network should be calculated from the intended reference frequency, division ratio, VCO gain, target phase noise, and lock-time requirements. This page combines the ADF4007BCPZ specifications, verified source links, application guidance, and drop-in alternatives with practical PLL design considerations. It also identifies the trade-offs among confirmed same-package replacements so engineers can evaluate PCB reuse without assuming unverified cross-brand equivalence.

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ADF4106BCP - 6 GHz Integer-N PLL Synthesizer | Analog Devices
ADF4106BCP

ADF4106BCP - 6 GHz Integer-N PLL Synthesizer | Analog Devices

The Analog Devices ADF4106BCP is a 6 GHz integer-N phase-locked loop frequency synthesizer in a compact 20-lead LFCSP package with an exposed pad. It operates from a 3.3 V supply, supports a separate charge-pump supply for extended tuning-voltage range, and includes programmable charge-pump currents, programmable anti-backlash pulse width, and a three-wire serial interface. A frequency synthesizer generates a stable, programmable output frequency from a lower-frequency reference. An integer-N PLL belongs to the phase-locked loop family, which includes phase detectors, charge pumps, counters, frequency dividers, and voltage-controlled oscillators. In the ADF4106, the reference divider, prescaler, programmable A and B counters, phase-frequency detector, and precision charge pump establish a locked output frequency for local-oscillator and transceiver applications. The headline operating bandwidth is 6.0 GHz, while the 3.3 V supply architecture allows integration in RF systems that already operate on 3.3 V. The dual-modulus prescaler is programmable, and the 6-bit A counter divides the prescaled RF input. The B counter determines the programmable division ratio, while the reference divider reduces the external reference frequency before comparison with the divided feedback signal. The separate VP charge-pump supply is important in designs that need a tuning voltage outside the range supported by the main supply alone. Programmable charge-pump currents provide a means of balancing phase-error performance against lock behavior, and the programmable anti-backlash pulse width helps control the timing of the phase-frequency detector's correction pulses. These features support deterministic integration of the PLL into RF signal chains. Typical uses include local oscillators in wireless receivers and transmitters, up-conversion and down-conversion sections of RF systems, frequency-hopping equipment, and other RF communication circuits requiring programmable frequency generation. The 3-wire serial interface allows the host processor or microcontroller to configure the counters, prescaler, charge-pump settings, and anti-backlash pulse width. When laying out this device, keep the reference, prescaler feedback, charge-pump, and loop-filter connections short and isolate noisy switching or digital return currents from sensitive RF nodes. Because the exposed pad requires a low-impedance thermal path, follow the manufacturer package guidance for via patterns and ground-pour connection. Component values for the loop filter, matching networks, and reference decoupling should be selected from the manufacturer's application guidance and the intended channel plan. This page combines manufacturer datasheet details, distributor availability information, package and lifecycle context, and an engineering-focused comparison of documented alternatives. It also records where verified data is incomplete so designers can distinguish confirmed parameters from values that still require confirmation against the latest Analog Devices documentation.

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ADF4106BCPZ - 6 GHz Integer-N PLL Synthesizer | Analog Devices
ADF4106BCPZ

ADF4106BCPZ - 6 GHz Integer-N PLL Synthesizer | Analog Devices

The Analog Devices ADF4106BCPZ is an integer-N RF frequency synthesizer with a 6 GHz operating bandwidth, 20-bit LFCSP-20 package, and a 2.7 V to 3.3 V supply range. The device includes a programmable dual-modulus prescaler, programmable A and B counters, a programmable reference divider, a precision charge pump, and a low-noise digital phase-frequency detector for generating local-oscillator signals in wireless receivers and transmitters. A phase-locked loop, or PLL, is a feedback-controlled frequency-generation circuit in which a phase-frequency detector compares a reference signal with a divided output signal. The charge pump converts the phase error into a control voltage that tunes the oscillator until the divided feedback matches the reference. An integer-N PLL synthesizes frequencies using an integer division ratio, making it well suited to fixed or integer-related RF channels requiring predictable lock behavior and uncomplicated loop-filter design. The ADF4106BCPZ supports a maximum RF input frequency of 6 GHz and a reference input frequency stated as high as 325 MHz in comparison information. Its programmable dual-modulus prescaler, 6-bit A counter, 13-bit B counter, and programmable reference divider provide flexible channel-generation ratios. The separate charge-pump supply, VP, allows the tuning voltage range to be extended for applications requiring greater tuning authority. As an integer-N architecture, the ADF4106BCPZ avoids the fractional-N divider sequence associated with fractional-N synthesizers. This simplifies control-word programming and loop-filter implementation, although fractional-N devices may be preferable when very fine channel spacing is required. The low-noise phase-frequency detector and precision charge pump are the central timing elements controlling phase error and reference-to-output jitter. Typical uses include wireless receiver and transmitter local oscillators, up-conversion and down-conversion sections, test and measurement equipment, and RF communication modules. Designers should select the prescaler, A counter, B counter, reference divider, and charge-pump settings so the resulting feedback ratio is valid and lock can be achieved with the chosen external loop filter. Keep the power and ground layout compact and connect the exposed pad to a low-impedance ground plane with adequate thermal relief. Place the reference and RF input connections away from the charge-pump and loop-filter components to reduce coupling. Review the manufacturer datasheet for the complete register map, pin description, recommended decoupling, and timing limits before production release. This product page organizes the confirmed electrical and package information, practical application guidance, verified comparison details, and design considerations needed to evaluate the ADF4106BCPZ for an integer-N RF synthesis design.

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ADF4106BRU - 6 GHz Integer-N PLL | Analog Devices | RF
ADF4106BRU

ADF4106BRU - 6 GHz Integer-N PLL | Analog Devices | RF

The Analog Devices ADF4106BRU is a 6 GHz integer-N phase-locked-loop frequency synthesizer with one RF channel, a programmable dual-modulus prescaler, programmable counters, a precision charge pump, and a 3-wire serial interface. It is supplied in a 16-pin TSSOP package measuring 0.173 inch, or 4.40 mm, in width and operates from a 3.3 V power supply, with a separate charge-pump supply. An integer-N PLL is a clock-and-timing feedback circuit used to generate an RF output locked to a stable reference frequency. Its phase-frequency detector compares the divided feedback signal with the reference, while the charge pump, loop filter, voltage-controlled oscillator, prescaler, and programmable counters close the feedback loop. Within the broader hierarchy, the ADF4106 belongs to frequency synthesizers, clock generators, phase-locked loops, and clock-and-timing integrated circuits used in wireless RF signal chains. The ADF4106 provides a 6.0 GHz bandwidth and is intended for local-oscillator generation in wireless receiver and transmitter up-conversion and down-conversion sections. Its architecture includes a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a programmable dual-modulus prescaler. Additional programming controls include selectable charge-pump currents and an adjustable anti-backlash pulse width. The separate VP charge-pump supply allows an extended tuning-voltage range when supported by the surrounding voltage-controlled oscillator and loop-filter design. A 3-wire serial interface configures the frequency plan and operating parameters. This architecture is appropriate when integer division relationships are acceptable and predictable channel spacing, programmable counters, and flexible prescaler selection are more important than fractional-N synthesis. Typical uses include wireless receiver local oscillators, transmitter up-converters and down-converters, RF measurement equipment, instrumentation, and other RF communications systems targeting frequencies below 6 GHz. The verified distributor listing identifies the ADF4106BRU as a clock/frequency synthesizer IC with one channel and a 16-TSSOP package. Layout quality directly affects PLL behavior. Keep the reference and RF paths compact and impedance-controlled, place loop-filter components close to the charge-pump and VCO interface, and provide adequate ground-plane continuity. Confirm lock range, reference-divider limits, prescaler values, counter limits, and VCO tuning voltage against the manufacturer datasheet before production release. This product page combines the verified 6 GHz and package information, official Analog Devices documentation, distributor sourcing data, and practical RF design guidance. It also distinguishes true pin-compatible replacements from parts that are only functionally similar, helping engineers avoid invalid drop-in substitutions.

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ADF4106BRUZ - 6GHz Integer-N PLL Synthesizer | Analog Devices
ADF4106BRUZ

ADF4106BRUZ - 6GHz Integer-N PLL Synthesizer | Analog Devices

Analog Devices ADF4106BRUZ is a 6 GHz RF clock and frequency synthesizer IC in a 16-pin TSSOP package operating from a 2.7 V to 3.3 V supply. It uses an integer-N PLL architecture with a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a dual-modulus P/P+1 prescaler. These blocks support programmable local-oscillator generation in wireless receiver and transmitter signal chains. A PLL frequency synthesizer is a clock-and-timing IC that locks an output frequency to a stable reference frequency. The feedback divider compares the divided output with the reference, while the phase-frequency detector and charge pump convert phase and frequency error into a correction voltage for the internal voltage-controlled oscillator. In the system hierarchy, the ADF4106BRUZ is an RF frequency synthesizer, a phase-locked loop, a clock-and-timing IC, and ultimately an integrated circuit used for local-oscillator generation. The ADF4106's programmable counters and dual-modulus prescaler allow the output frequency to be derived from the reference through integer-N frequency multiplication. Its 6 GHz operating class makes it applicable to RF up-conversion and down-conversion circuits, where a receiver or transmitter requires a stable local oscillator. The supplied distributor data identifies the device as a 6 GHz, single-channel clock/frequency synthesizer in a 16-TSSOP package with a 4.40 mm body width. The architecture separates the reference path from the programmable RF synthesis path. The reference divider reduces the input reference frequency, the A and B counters define the integer-N division ratio, and the dual-modulus prescaler supports fine frequency-plan division. According to the Analog Devices ADF4106 datasheet, the device includes a low-noise digital phase-frequency detector and a precision charge pump, which are central to phase-error conversion and loop stability. Typical uses include wireless receiver and transmitter local oscillators, up-conversion and down-conversion blocks, instrumentation RF signal sources, and communication equipment requiring programmable RF clocks. The device can also serve RF test and measurement systems when the required output frequency and phase-noise behavior satisfy the system specification. Because PLL performance depends on the complete loop filter, reference source, VCO implementation, and output frequency, system-level simulation remains necessary. Designers should provide the manufacturer-specified reference and charge-pump circuitry, route sensitive RF and control signals carefully, and verify acquisition, lock, spur, and phase-noise behavior across temperature and supply ranges. The operating supply range of 2.7 V to 3.3 V and typical supply current of 10.5 mA are suitable for 3.3 V RF system rails. The ADF4106BRUZ is specifically supplied in the compact 16-pin TSSOP package, so PCB layout and assembly designs must follow that footprint rather than the 20-lead LFCSP variant. This product page combines the verified 6 GHz frequency capability, 2.7 V to 3.3 V supply range, 10.5 mA supply current, package information, distributor pricing, and same-footprint replacement research with practical selection guidance. It also separates documented facts from parameters requiring confirmation in the complete Analog Devices datasheet, helping engineers make a defensible PCB and frequency-plan decision.

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ADF4107BCP - 7 GHz Integer-N PLL | Analog Devices | LFCSP-20
ADF4107BCP

ADF4107BCP - 7 GHz Integer-N PLL | Analog Devices | LFCSP-20

The Analog Devices ADF4107BCP is a production 7 GHz integer-N phase-locked-loop frequency synthesizer housed in a 20-lead LFCSP surface-mount package. Its headline characteristics are a 7.0 GHz maximum operating frequency, a 3.3 V power supply, and a programmable dual-modulus prescaler. The device supports 3 V system operation and uses a separate charge-pump supply, VP, so designers can extend the tuning voltage independently from the main supply. An integer-N PLL is a frequency-generation category in which feedback divides the synthesized output to produce a stable reference-frequency relationship. Within the broader hierarchy of clock and timing integrated circuits, a PLL combines a phase-frequency detector, charge pump, programmable counters, prescaler, and voltage-controlled oscillator. The ADF4107 implements these functions as an integrated synthesizer for wireless transmitters and receivers requiring accurate local-oscillator generation. Key features include low-noise digital phase detection, a precision charge pump, a programmable reference divider, a 6-bit A counter, a 13-bit B counter, and a programmable dual-modulus P/P+1 prescaler. According to the Analog Devices ADF4107 data sheet, typical phase noise is -83 dBc/Hz at a 1 kHz carrier offset, while spurs are better than -70 dBc. These characteristics make the device useful where local-oscillator phase noise and close-in spur performance influence receiver sensitivity or transmitter signal quality. The architecture supports integer-N synthesis from a reference source through programmable division and prescaling. The charge-pump output on pin 2 drives an external loop filter, and the data sheet illustrates a filter designed for a 45-degree overall phase margin. Designers must account for loop bandwidth, reference phase noise, charge-pump current, prescaler division, and VCO tuning gain when determining filter component values. Typical applications include wireless receiver and transmitter local oscillators, up-conversion and down-conversion sections, instrumentation, and communications equipment. The 7 GHz operating ceiling suits radio-frequency signal chains operating below that limit, while the separate VP rail provides additional tuning-voltage headroom when required by the VCO and loop-filter design. A key design consideration is the dependence of reference phase noise on multiplication ratio. Although the ADF4107 supplies substantial on-chip frequency generation, the reference oscillator and loop filter remain external and can dominate final phase-noise performance. This page synthesizes verified manufacturer information, procurement data, replacement information, and practical design guidance for engineers evaluating the ADF4107BCP.

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ADF4107BCPZ - 7 GHz Integer-N PLL | Analog Devices
ADF4107BCPZ

ADF4107BCPZ - 7 GHz Integer-N PLL | Analog Devices

The Analog Devices ADF4107BCPZ is a 7 GHz integer-N frequency synthesizer with a programmable phase-frequency detector, precision charge pump, reference divider, A and B counters, and dual-modulus prescaler, housed in a 20-lead WFQFN exposed-pad package. It generates local-oscillator signals for wireless receiver and transmitter upconversion and downconversion stages. The device uses one reference input to synthesize programmable output frequencies for RF signal chains. A frequency synthesizer, or PLL, belongs to the clock-generation and timing hierarchy. Its phase-locked loop compares a divided feedback signal with a reference oscillator and drives a programmable frequency divider through a phase-frequency detector and charge pump. In an RF transceiver, this architecture supports local-oscillator generation where a stable reference frequency must be converted into a programmable carrier or intermediate-frequency signal. The ADF4107 integrates a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a dual-modulus prescaler identified as P/P + 1. The A counter is 6 bits and the B counter is 13 bits. This programmable divider structure permits the reference path and feedback division ratio to be configured according to the desired channel plan and synthesizer architecture. The charge-pump output at pin 2 drives an external loop filter. According to the Analog Devices ADF4107 datasheet, the example loop-filter calculation targets 45 degrees of overall phase margin. The datasheet also gives a typical phase-noise result of -83 dBc/Hz at a 1 kHz carrier offset, with spurs better than -70 dBc. These figures make loop design and printed-circuit layout important to final phase noise and spurious performance. Typical uses include wireless receiver local oscillators, wireless transmitter upconversion paths, RF downconversion systems, instrumentation requiring programmable RF frequencies, and intermediate-frequency generation. The 7 GHz maximum frequency supports RF operating bands below that limit, while the integer-N architecture simplifies frequency planning through programmable A and B counter ratios. The external loop filter, reference components, supply bypassing, and ground return directly influence phase noise, lock behavior, and spur performance. Keep the charge-pump connection short, use a symmetrical loop-filter layout around the device, and decouple supply pins with the capacitance specified in the manufacturer datasheet. Confirm lock range and reference-divider settings for every required output frequency. This page combines the manufacturer’s PLL architecture and measured performance details with package, sourcing, application, and replacement guidance. It also identifies the limits of a true drop-in replacement: the closest ADF4106, ADF4108, and ADF4109 devices share the family platform but change the maximum synthesized frequency, so the original ADF4107BCPZ remains preferable when the exact 7 GHz operating limit is required.

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ADF4107BRU - 7 GHz Integer-N PLL Frequency Synthesizer
ADF4107BRU

ADF4107BRU - 7 GHz Integer-N PLL Frequency Synthesizer

The Analog Devices ADF4107BRU is a 7 GHz integer-N PLL frequency synthesizer with programmable A and B counters, a programmable reference divider, and a dual-modulus prescaler in a 16-lead TSSOP package. It is designed for local-oscillator generation in wireless transmitters and receivers, including upconversion and downconversion sections. A PLL frequency synthesizer generates a stable, programmable output frequency from a reference source. This device combines a low-noise digital phase-frequency detector, precision charge pump, programmable counters, and dual-modulus prescaler to support frequency multiplication and division. The ADF4107 family is positioned in the clock-and-timing semiconductor hierarchy, where it provides programmable RF frequency generation for communication systems. Key features include operation up to 7 GHz, 6-bit A-counter and 13-bit B-counter programmability, and a programmable dual-modulus prescaler. The reference divider allows the reference frequency to be divided before comparison with the synthesized feedback signal. The datasheet identifies typical phase noise of -83 dBc/Hz at 1 kHz offset and spurs better than -70 dBc in the cited typical application condition. The architecture is intended for RF signal chains where a stable reference clock and programmable feedback divider are required. The prescaler divides the output frequency, while the A and B counters determine the required multiplication ratio and modulus. Correct loop-filter design is essential because phase noise, reference spurs, lock behavior, and output jitter depend on the selected reference frequency, bandwidth, and loop parameters. Typical applications include wireless receiver and transmitter local oscillators, upconversion and downconversion chains, RF communications equipment, and test systems requiring programmable RF signal generation. The ADF4107 is also useful where a low-cost integer-N architecture is preferable to a fractional-N synthesizer and the required channel spacing and phase-noise performance can be met. For implementation, follow the datasheet’s recommended reference, charge-pump, filter, and decoupling connections. Keep the reference and RF paths short, use controlled impedance routing where appropriate, and account for the device’s supply voltage and grounding requirements. This page combines verified manufacturer and distributor information with practical PLL design guidance; unavailable parameters are explicitly marked rather than estimated.

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ADF4107BRUZ - 7 GHz Integer-N PLL | Analog Devices | RF
ADF4107BRUZ

ADF4107BRUZ - 7 GHz Integer-N PLL | Analog Devices | RF

The Analog Devices ADF4107BRUZ is a 7 GHz integer-N phase-locked-loop frequency synthesizer in a 16-pin TSSOP package. It operates from a 2.7 V to 3.3 V supply, draws 15 mA, and supports a separate 3.3 V charge-pump supply for extended tuning-voltage headroom. The device is intended for local-oscillator generation in wireless receiver and transmitter up-conversion and down-conversion paths. An integer-N PLL is a frequency synthesizer that derives an output frequency from a stable reference using digital counters, a phase-frequency detector, a charge pump, and a feedback loop filter. In the ADF4107 architecture, a programmable dual-modulus prescaler, programmable A and B counters, a programmable reference divider, a low-noise digital phase-frequency detector, and a precision charge pump support programmable frequency generation. The 6-bit A counter and 13-bit B counter provide the programmable division and modulus functions required for integer-N channel planning. Key characteristics include a 7.0 GHz operating bandwidth, operation with 3.3 V systems, programmable dual-modulus prescaling, programmable charge-pump current, and a separate VP charge-pump supply. A typical 1 MHz channel-spacing arrangement uses a 10 MHz reference divided by 10 by the on-chip reference divider. The manufacturer datasheet also reports typical phase noise of -83 dBc/Hz at a 1 kHz carrier offset and spurs better than -70 dBc. The digital control interface permits programming of operating parameters, while the phase-frequency detector compares the divided reference with the feedback signal. The charge-pump output drives an external passive loop filter, and the filter, along with the selected counter values, charge-pump current, reference frequency, and prescaler modulus, determines loop bandwidth, phase noise, lock behavior, and spur performance. Typical applications include wireless receiver local oscillators, wireless transmitter up-converters and down-converters, microwave and RF communications equipment, frequency-agile test instruments, and instrumentation requiring programmable RF synthesis. The 16-TSSOP format supports compact board construction, while the 7 GHz bandwidth covers common microwave and RF local-oscillator frequencies. A critical design consideration is the separation of the main supply and charge-pump supply so the tuning voltage can operate beyond the normal 3.3 V rail range. Loop-filter component selection must follow the manufacturer datasheet methodology because phase noise, spurs, lock time, and reference-divider rejection are interdependent. Keep the charge-pump and feedback routing compact, provide stable reference decoupling, and use a clean low-noise reference source. This product page combines the manufacturer specifications, package details, practical RF design guidance, application fit, and verified drop-in alternatives. It also identifies where a different PLL family should be selected when frequency range, prescaler architecture, reference-divider depth, or loop-filter requirements differ.

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ADF4108BCPZ - 8 GHz Integer-N PLL Synthesizer | Analog Devices
ADF4108BCPZ

ADF4108BCPZ - 8 GHz Integer-N PLL Synthesizer | Analog Devices

The Analog Devices ADF4108BCPZ is an 8 GHz integer-N PLL frequency synthesizer with one RF channel, housed in a 20-lead WFQFN surface-mount package with an exposed pad. It integrates a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, 6-bit A counter, 13-bit B counter, and a dual-modulus P/P+1 prescaler. A phase-locked loop, or PLL, is a feedback-controlled timing system that locks an output oscillator to a stable reference frequency. In the broader semiconductor hierarchy, the ADF4108 is a clock-and-timing IC, a frequency synthesizer, and ultimately a programmable RF signal-generation component. Its integer-N architecture allows a reference frequency to be multiplied through programmable counters and a dual-modulus prescaler to create a local oscillator for RF transmitters and receivers. Key features include an 8 GHz maximum RF input frequency, programmable A and B counters, a programmable reference divider, and a dual-modulus prescaler. The 20-lead WFQFN package with an exposed pad supports compact surface-mount layouts while providing a thermal path for the charge-pump and PLL circuitry. The digital programming interface allows the divider values, prescaler mode, counter settings, and operating mode to be configured by an embedded controller. The internal architecture separates the phase-frequency detector from the charge pump so the loop can compare the divided output signal with the divided reference. In operation, the charge pump drives the loop-filter error current, while the VCO and feedback divider complete the closed loop. Designers must select the reference, N-divider, loop bandwidth, charge-pump current, and filter components together to achieve adequate phase noise, lock time, and spur performance. Typical applications include wireless receiver and transmitter local oscillators, up-conversion and down-conversion stages, instrumentation, and test-and-measurement equipment. The device is particularly relevant where a programmable integer division ratio is required for RF channel selection or coherent signal generation. A key design consideration is the need for a clean reference source and a correctly sized loop filter. Keep the reference and feedback paths short, provide stable decoupling, and use the manufacturer’s recommended PCB stack-up and exposed-pad soldering pattern to preserve RF behavior and thermal performance. This page combines manufacturer-level operating details with application guidance, pin-package guidance, and practical PLL design notes to support faster component selection and PCB implementation.

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ADF4110BCP - 550 MHz Integer-N PLL | Analog Devices
ADF4110BCP

ADF4110BCP - 550 MHz Integer-N PLL | Analog Devices

The Analog Devices ADF4110BCP is a single, integer-N frequency synthesizer and RF PLL with a maximum operating frequency of 550 MHz, programmable dual-modulus prescaler, programmable charge-pump currents, and separate charge-pump supply capability. The device is packaged in a 20-lead LFCSP package. A phase-locked loop (PLL) is a frequency-control circuit in which a voltage-controlled oscillator is adjusted by a feedback loop until its output phase and frequency match a reference signal. The ADF4110 family is designed for local-oscillator generation in wireless receiver and transmitter upconversion and downconversion sections. Its integer-N architecture simplifies frequency planning while the programmable prescaler and charge-pump settings support tuning-range and loop-bandwidth optimization. Key features include a 6-bit A counter, 13-bit B counter, programmable dual-modulus P/P+1 prescaler, low-noise digital phase-frequency detector, precision charge pump, and programmable reference divider. The supplied manufacturer information also identifies 5.5 V power-supply operation, a separate VP charge-pump supply for extended tuning voltage, and compatibility with 3 V systems. These functions allow the synthesizer to support wireless transceiver, RF receiver, RF transmitter, and local-oscillator designs. Technically, the device uses a phase-frequency detector to compare a divided reference with a divided feedback signal. The resulting error drives the charge pump and tuning path, closing the feedback loop at the selected output frequency. Because it is an integer-N synthesizer, channel spacing follows the reference frequency divided by the programmable reference divider and prescaler-related integer settings. Reference phase noise, loop bandwidth, charge-pump current, and loop-filter component selection therefore materially affect phase noise and lock behavior. ADF4110BCP is appropriate for RF and microwave designs requiring an integer-N local oscillator. Designers should preserve the required reference-decoupling and charge-pump layout, select loop-filter components for the target phase-noise and lock-time requirements, and verify the maximum 550 MHz operating limit against the complete prescaler and feedback-divider configuration. This page combines manufacturer product information, verified pricing starting at $3.55 as of 2026-10-29, package and feature details, practical RF design guidance, and same-brand drop-in alternatives for design evaluation.

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ADF4110BRU - 550 MHz Integer-N PLL | Analog Devices
ADF4110BRU

ADF4110BRU - 550 MHz Integer-N PLL | Analog Devices

The Analog Devices ADF4110BRU is a single integer-N radio-frequency phase-locked loop frequency synthesizer with a maximum PLL frequency of 550 MHz, programmable dual-modulus prescaler, and a 16-pin TSSOP package. The verified distributor listing identifies the part as a clock/frequency synthesizer with a 5 MHz input, 550 MHz maximum frequency, and 165 MHz output parameter. An RF PLL is a frequency synthesizer that locks a voltage-controlled oscillator to a stable reference frequency. It belongs to the clock and timing hierarchy: RF frequency synthesizer, PLL frequency synthesizer, clock and timing IC, and semiconductor. The ADF4110 family is intended for wireless receiver and transmitter local oscillators, where a programmable divider, phase-frequency detector, charge pump, A counter, and B counter establish the required output frequency. The key verified features include a 5.5 V power supply, a separate charge-pump supply that allows an extended tuning-voltage range, programmable dual-modulus prescaler, programmable charge-pump currents, and support for 3 V systems. The 550 MHz upper PLL frequency is relevant to RF communications designs, while the 16-TSSOP package supports compact surface-mount implementation. Analog Devices markets the ADF4110 as a production part. The architecture allows the reference input to be divided and compared with the divided feedback signal. The phase-frequency detector and charge pump then drive the tuning interface of a voltage-controlled oscillator. Exact counter widths, divider values, reference-frequency limits, output characteristics, pin names, and electrical limits should be confirmed in the manufacturer datasheet before layout or firmware release. Typical uses include wireless receiver and transmitter local oscillators, RF upconversion and downconversion chains, and other frequency-generation systems requiring programmable RF channel selection. The device is most useful when the system already provides a stable reference and a suitable external VCO or oscillator arrangement. Designers should preserve the required loop-filter components, keep RF and reference routing short, and verify phase-noise and lock-time behavior with the actual VCO and reference source. The PLL is not a standalone fixed-frequency oscillator; its external loop and reference design determine much of the final performance.

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ADF4110BRUZ - 550MHz Integer-N RF PLL | Analog Devices
ADF4110BRUZ

ADF4110BRUZ - 550MHz Integer-N RF PLL | Analog Devices

Analog Devices ADF4110BRUZ is a single-channel, integer-N radio-frequency phase-locked-loop frequency synthesizer designed for local-oscillator generation up to 550 MHz. The device operates from a 2.7 V to 5.5 V supply and is packaged in a 16-pin TSSOP measuring 0.173 inch, or 4.40 mm, in body width. Its nominal supply current is 4.5 mA, making it suitable for compact RF receiver, transmitter, and frequency-conversion systems. An RF phase-locked loop is a feedback-controlled timing system in which a phase-frequency detector compares a reference signal with a divided RF feedback signal. A charge pump and external loop filter convert that phase error into a control voltage for a voltage-controlled oscillator. The resulting output locks to the reference frequency while the programmable divider determines the synthesized frequency. This architecture places ADF4110 within the broader clock-and-timing IC, frequency-synthesizer, PLL, and RF signal-chain hierarchies. The ADF4110 family combines a low-noise digital phase-frequency detector, a precision charge pump, programmable integer-N division, and a programmable prescaler. The manufacturer identifies the family as being suitable for local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. Its 550 MHz maximum synthesis frequency provides useful coverage for industrial, communication, test-and-measurement, and embedded RF equipment. Programming is performed through a serial data interface with clock, data, and latch-enable signals. The external loop filter is a central part of the control loop, and its component values must be calculated for the target reference frequency, division ratio, phase-detector frequency, and desired phase-noise and lock-time behavior. Designers should follow the loop-filter design procedure and reference circuitry in the Analog Devices ADF4110 family data sheet rather than relying on generic filter values. Typical applications include RF local oscillators, wireless receiver and transmitter up-converters and down-converters, IF-generation stages, frequency-agile test equipment, and communications modules requiring a stable synthesized carrier. In these systems, the PLL translates one stable reference into an RF output that can be selected by changing the divider settings. The low 4.5 mA supply current can reduce system overhead where board area and power consumption are constrained. A critical design consideration is the separation of sensitive reference, feedback, and charge-pump paths on the PCB. Keep the charge-pump and loop-filter components close to their associated pins, use a continuous ground reference, and route high-level RF traces away from the phase detector and reference input. Confirm lock behavior, spur performance, and phase noise with the intended VCO and filter before releasing the design to production. This product page combines the manufacturer specifications, package information, application guidance, practical design notes, and a structured comparison of related frequency synthesizers. It is intended to help engineers evaluate the ADF4110BRUZ as an RF PLL, understand its programming and loop-filter requirements, and determine whether its 550 MHz integer-N architecture fits a new receiver, transmitter, or laboratory RF design.

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ADF4111BCP - 1.2 GHz Integer-N PLL | Analog Devices
ADF4111BCP

ADF4111BCP - 1.2 GHz Integer-N PLL | Analog Devices

The Analog Devices ADF4111BCP is a single-channel, integer-N frequency synthesizer with a programmable dual-modulus prescaler, precision charge pump, programmable reference divider, and programmable A and B counters. It supports synthesis up to 1.2 GHz and operates from a 5.5 V power supply in a 20-pin LFCSP package with an exposed pad. The device belongs to the PLL frequency-synthesizer family used for local oscillators in wireless transmitters and receivers. A PLL frequency synthesizer is a feedback-controlled timing IC that locks a programmable output oscillator to a stable reference frequency. Its hierarchy is PLL frequency synthesizer > frequency synthesizer > clock and timing IC > integrated circuit. Within that hierarchy, the ADF4111 is an integer-N architecture, meaning the prescaler, A counter, and B counter divide the reference and feedback signals through an integer relationship to establish the output frequency. Key features include a programmable dual-modulus prescaler, programmable charge-pump currents, a programmable reference divider, a 6-bit A counter, and a 13-bit B counter. The separate charge-pump supply permits an extended tuning-voltage range, while the 5.5 V supply arrangement supports low-voltage RF system integration. Its integer-N architecture is useful when fractional-N frequency synthesis is unnecessary and a straightforward integer division ratio is preferred. Technically, the ADF4111 combines a low-noise digital phase-frequency detector, a precision charge pump, a reference divider, and the dual-modulus prescaler into a single frequency-synthesizer IC. The phase-frequency detector compares the divided reference and feedback signals; the charge pump converts phase and frequency errors into a tuning voltage that controls the external voltage-controlled oscillator. This architecture supports local-oscillator generation in RF upconversion and downconversion paths. Typical applications include wireless receiver and transmitter local oscillators, instrumentation and test equipment, industrial RF control, and frequency-generation modules operating below the device's 1.2 GHz upper synthesis limit. The 20-pin LFCSP surface-mount package supports compact RF boards, but its exposed pad requires careful PCB thermal design and a low-impedance ground connection. The primary design consideration is the analog loop around the external VCO. Component values for the loop filter and charge-pump current must be selected from the intended reference frequency, phase noise requirement, VCO gain, prescaler, and lock-time target. The exposed pad should be connected to ground through a short thermal-via path, and high-frequency reference and RF routing should remain controlled and short. This page consolidates the verified Analog Devices product information, package details, lifecycle information, sourcing links, and application guidance into one engineering-focused reference. It also distinguishes true drop-in family alternatives from newer synthesizer architectures that may use the same package family but provide different interfaces or frequency-generation features.

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ADF4111BRU - 1.2 GHz Integer-N PLL | Analog Devices
ADF4111BRU

ADF4111BRU - 1.2 GHz Integer-N PLL | Analog Devices

The Analog Devices ADF4111BRU is a single integer-N frequency synthesizer and phase-locked loop (PLL) with a 1.2 GHz maximum PLL frequency, programmable dual-modulus prescaler, and programmable charge-pump current. The device accepts a reference frequency between 5 MHz and 1.4 GHz, uses a 165 MHz maximum output frequency according to distributor data, and is supplied in a 16-pin TSSOP package measuring 0.173 inch, or 4.40 mm, in width. An integer-N PLL is a frequency-generation IC that locks an output oscillator to a stable reference by comparing the divided output phase with the reference phase. A phase-frequency detector measures the phase error, and a charge pump converts that error into a control current for an external voltage-controlled oscillator (VCO). In the broader hierarchy, the ADF4111BRU is a PLL-based frequency synthesizer, a clock-and-timing IC, and ultimately a semiconductor used to produce stable local-oscillator signals. Key features include a 1.2 GHz nominal maximum PLL frequency for the ADF4111 device, a programmable dual-modulus P/P+1 prescaler, programmable charge-pump currents, and programmable reference and counter functions. A separate charge-pump supply permits an extended tuning-voltage range, while the 5.5 V power supply supports integration into RF receiver and transmitter systems operating from 3 V-class logic environments. Technically, the ADF4111 belongs to the ADF4110 family of frequency synthesizers. Its low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and dual-modulus prescaler form the core signal path. These functions allow an external reference and VCO to be combined into a closed-loop PLL capable of supporting wireless upconversion and downconversion architectures. Typical applications include GSM and other wireless receiver local oscillators, wireless transmitter upconversion sections, RF downconversion chains, frequency-locked test equipment, and communication systems requiring a programmable RF frequency. The main design consideration is loop stability: the prescaler, charge-pump setting, reference-divider ratio, loop filter, and VCO must be evaluated together rather than selected independently. Use the manufacturer datasheet and reference circuitry to select loop-filter values, verify lock range, route the sensitive reference and feedback paths cleanly, and confirm that the external VCO tuning range covers the required output band. This page combines verified manufacturer and distributor information, drop-in replacement analysis, and practical PLL design guidance.

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ADF4111BRUZ - 1.4 GHz PLL Synthesizer | Analog Devices
ADF4111BRUZ

ADF4111BRUZ - 1.4 GHz PLL Synthesizer | Analog Devices

Analog Devices ADF4111BRUZ is a single integer-N phase-locked-loop frequency synthesizer with a 1.4 GHz maximum RF input, programmable prescaler and charge pump, and external reference input in a 16-lead TSSOP package. The manufacturer classifies the device as a production single integer-N PLL and identifies an operating temperature range of -40°C to +85°C. A phase-locked loop, or PLL, is a feedback-controlled oscillator system that locks a programmable output frequency to a stable reference. Within the frequency-synthesizer hierarchy, the ADF4111 integrates a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a dual-modulus prescaler. It is intended for generating local-oscillator signals used in RF up-conversion and down-conversion paths. The principal features of the ADF4111BRUZ are its 1.4 GHz RF input capability, integer-N frequency synthesis, programmable reference and feedback paths, and integrated charge-pump and digital phase-detection functions. These characteristics make the device useful where a radio transceiver requires an RF local oscillator derived from a lower-frequency reference. The BRUZ package designation identifies the leaded 16-TSSOP form used for board-level RF and communications equipment. In operation, the reference signal passes through the programmable reference divider, while the RF feedback signal passes through the prescaler and feedback counters. The phase-frequency detector compares the divided signals, and the charge pump drives the loop-filter output. That control voltage adjusts the external voltage-controlled oscillator, which is then divided back through the feedback path. The external VCO and passive loop-filter component values remain central to phase-noise, reference-spur, lock-time, and channel-spacing performance. The ADF4111BRUZ is appropriate for wireless receiver and transmitter local oscillators, including systems operating around cellular, radio, microwave, and related RF bands. It can also support test-and-measurement RF sources, instrumentation, and frequency-conversion subsystems where a programmable PLL is preferable to a fixed oscillator. The integrated digital divider and synthesizer functions reduce the number of separate frequency-control blocks required around an external VCO. A primary design consideration is that the ADF4111BRUZ does not generate a microwave output directly; it controls an external VCO. Component selection for the VCO, loop filter, reference source, crystal, and decoupling network therefore remains critical. The RF input, reference input, charge-pump output, and digital programming interface should follow the manufacturer’s recommended application circuit and pin-description table to achieve predictable phase noise and lock behavior. This page combines the manufacturer product information, distributor identification, package details, and application guidance with a parameter-by-parameter family comparison. It also identifies which ADF411x-family devices use the same 16-lead TSSOP format and highlights where functional differences require simulation or laboratory verification before substitution.

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ADF4112BCP - 3 GHz Integer-N PLL | Analog Devices
ADF4112BCP

ADF4112BCP - 3 GHz Integer-N PLL | Analog Devices

Analog Devices ADF4112BCP is a single-channel, integer-N frequency synthesizer with a 3.0 GHz maximum operating frequency, a programmable dual-modulus prescaler, and programmable charge-pump currents for wireless receiver and transmitter local oscillators. The device accepts a 5 MHz to 3 GHz input range and is supplied in a 20-pin LFCSP with exposed pad. It also supports a separate charge-pump supply for extended tuning-voltage range. The ADF4112 integrates a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a programmable P/P+1 prescaler. This architecture supports integer-N local-oscillator generation for wireless upconversion and downconversion paths. The ADF4110 family is positioned within the broader RF frequency-synthesizer and clock-and-timing IC hierarchy, where a PLL locks an adjustable output frequency to a stable reference. According to the Analog Devices ADF4112 product page and Data Sheet Rev. F, the ADF4112 is in production and has a list-price starting point of $3.55. The 20-pin LFCSP exposed-pad package permits compact RF layouts, but the exposed pad must be connected to the appropriate ground plane and thermal design must account for charge-pump and digital power dissipation. Although the ADF4112 is not a fractional-N synthesizer, its programmable reference divider, prescaler, A counter, B counter, and charge-pump settings provide flexible integer-N frequency planning for RF and communication equipment. For applications requiring dual-channel or fractional-N synthesis, a different device family should be evaluated rather than assuming direct compatibility.

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ADF4112BCPZ - 3GHz Integer-N RF PLL | Analog Devices
ADF4112BCPZ

ADF4112BCPZ - 3GHz Integer-N RF PLL | Analog Devices

Analog Devices ADF4112BCPZ is a single integer-N RF phase-locked-loop frequency synthesizer rated to 3 GHz, with RF bandwidth extending to 4 GHz and operation from a 3.3 V supply in a 20-lead LFCSP exposed-pad package. The device combines a programmable dual-modulus prescaler, precision charge pump, programmable reference divider, phase-frequency detector, and programmable A and B counters. An RF PLL frequency synthesizer is a closed-loop timing-control IC that locks a voltage-controlled oscillator to a stable reference frequency. It belongs to the phase-locked-loop family, which provides frequency synthesis, clock generation, modulation, and frequency translation within wireless transmitters and receivers. The ADF4112 supports CMOS or TTL reference inputs and produces a clock output for use as a local oscillator or system clock source. Key features include an RF bandwidth of 4 GHz, a programmable 4/5 or 8/9 dual-modulus prescaler, programmable charge-pump current, and a separate VP connection for extended tuning-voltage capability. The product page identifies the A counter as 6 bits and the B counter as 13 bits, allowing programmable division ratios. The 3.3 V supply operation suits compact RF and wireless designs using contemporary low-voltage signal-chain architectures. Technically, the synthesizer uses an integer-N architecture to generate an output frequency derived from the reference, reference divider, prescaler, and programmable feedback counters. Its phase-frequency detector and charge pump generate an error current that controls the tuning path of an external voltage-controlled oscillator. A properly selected loop filter and external VCO remain central to achieving low phase noise, adequate locking time, and clean spectral performance. Typical applications include wireless receiver and transmitter local oscillators, up-conversion and down-conversion sections in RF systems, instrumentation and test equipment, and frequency-generation modules for industrial or communication equipment. Its 3 GHz maximum output frequency makes it suitable for systems operating within the RF bandwidth of the device when the prescaler, counters, reference, VCO, and loop filter are configured correctly. Design around the separate VP pin by reviewing the external VCO tuning range and charge-pump requirements in the manufacturer datasheet. Keep the RF output path short, use a controlled reference signal, and place loop-filter components close to the synthesizer pins. Thermal design should account for the exposed pad and the copper area available on the PCB. This product page combines the exact ADF4112BCPZ identifiers, verified package information, application guidance, design considerations, and a conservative replacement analysis. It focuses on engineering suitability rather than treating a related PLL as interchangeable without verified pin and parameter equivalence.

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ADF4112BRU - 3 GHz Integer-N PLL | Analog Devices
ADF4112BRU

ADF4112BRU - 3 GHz Integer-N PLL | Analog Devices

Analog Devices ADF4112BRU is an integer-N phase-locked loop frequency synthesizer rated to 3.0 GHz, supplied in a 16-lead TSSOP package. It combines a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a dual-modulus prescaler. The device supports a 5.5 V power supply and a separate charge-pump supply, making it suitable for RF local-oscillator and clock-generation systems that require programmable frequency synthesis. A PLL frequency synthesizer is a clock-and-timing integrated circuit that locks an output oscillator to a stable reference frequency. Within the power-management and signal-chain hierarchy, the ADF4112 belongs to the frequency-synthesizer class, where the phase detector, charge pump, counters, prescaler, and voltage-controlled oscillator work as a closed feedback loop. Its integer-N architecture simplifies programming because the feedback division ratio is formed from integer counters rather than a fractional divider. The verified product information identifies a 3 GHz maximum PLL operating frequency, a 5.5 V supply, a separate charge-pump supply, programmable reference and counter functions, and programmable charge-pump currents. The 16-TSSOP package provides a compact surface-mount footprint suitable for RF boards, instrumentation, communications equipment, and test-and-measurement systems. The manufacturer product page lists the part as production and provides a starting list price of $3.55. In operation, the reference signal passes through the programmable reference divider, while the feedback path uses the prescaler and A/B counters. The phase-frequency detector compares the divided reference and feedback signals, and the charge pump converts the phase error into a tuning voltage for the external voltage-controlled oscillator. A separate charge-pump supply permits extended tuning voltage, while programmable current helps tune loop dynamics. Typical applications include wireless receiver and transmitter local oscillators, RF upconversion and downconversion stages, instrumentation, and communications test equipment. Because the target is an integer-N device, designs needing fractional-N synthesis may require a different part. This page combines verified manufacturer and distributor information with practical configuration guidance, helping engineers distinguish function from package and evaluate replacement constraints. Designers should verify the complete datasheet for counter widths, prescaler options, reference-input limits, output-driver configuration, loop-filter requirements, and exposed thermal behavior before layout. The reference and feedback paths require careful RF routing, while the charge-pump and loop-filter components must be placed close to the relevant pins to minimize noise and phase error. Pricing shown in this record reflects the manufacturer listing available as of 2026-10-23.

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ADF4112BRUZ - 3 GHz Integer-N PLL | Analog Devices
ADF4112BRUZ

ADF4112BRUZ - 3 GHz Integer-N PLL | Analog Devices

Analog Devices ADF4112BRUZ is a single-channel, integer-N radio-frequency phase-locked-loop frequency synthesizer with a maximum operating frequency of 3 GHz. The device is a BiCMOS clock/frequency synthesizer IC packaged in a 16-pin TSSOP with a 4.40 mm package width. It operates from a 2.7 V to 5.5 V supply and draws 6.5 mA, making it suitable for compact wireless receiver and transmitter equipment. An integer-N frequency synthesizer belongs to the phase-locked-loop, clock-generation, and RF frequency-generation hierarchy. Its phase-frequency detector compares a divided reference signal with a divided feedback signal, while its programmable counters and dual-modulus prescaler determine the synthesized output frequency. This architecture provides programmable frequency generation for RF local oscillators, up-conversion and down-conversion chains, and other systems requiring a stable output related to a reference clock. The ADF4112 integrates a low-noise digital phase-frequency detector, a precision charge pump, a programmable reference divider, programmable A and B counters, and a programmable dual-modulus prescaler. These functional blocks allow the output frequency to be established through a serial programming interface. The 3 GHz upper operating frequency supports RF signal chains operating below that limit, while the 2.7 V minimum supply permits use in systems with a 3 V nominal supply. The ADF4110 family architecture is intended for wireless receiver and transmitter local oscillators. In a transmitter, the synthesizer can generate a programmable local oscillator for RF up-conversion. In a receiver, it can provide the local oscillator used during RF down-conversion. The integer-N approach is particularly useful when the desired frequency relationship to the reference can be represented with integer division ratios and when compact implementation is a priority. Typical uses include wireless transceivers, RF front ends, local-oscillator modules, frequency-agile test equipment, and communication systems operating below 3 GHz. The 16-pin TSSOP package also allows reuse of PCB layouts designed for compatible members of the ADF4110 family, subject to careful verification of pin functions, register compatibility, prescaler options, and operating limits. The most important design consideration is the loop-filter and reference-divider implementation. A suitable external loop filter must provide the required phase margin and loop bandwidth for the intended reference and synthesis frequencies. The charge-pump output should be kept short and surrounded by an appropriate ground-return path, while decoupling capacitors should be positioned close to the supply and ground pins. This page combines the key ADF4112BRUZ operating facts, family-level replacement considerations, verified package information, application guidance, and practical design notes. It is intended to help engineers identify the correct PLL for an RF design and distinguish a true same-footprint option from a merely similar frequency synthesizer.

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ADF4113BCP - 4GHz Integer-N PLL | Analog Devices
ADF4113BCP

ADF4113BCP - 4GHz Integer-N PLL | Analog Devices

The Analog Devices ADF4113BCP is a single integer-N phase-locked-loop frequency synthesizer with a 4.0 GHz maximum RF input, programmable dual-modulus prescaler, and programmable charge-pump current, packaged in a 20-lead LFCSP with an exposed pad. It operates from a 2.7 V to 5.5 V supply range and supports a separate charge-pump supply at VP, allowing an extended tuning-voltage range. The device also supports 3 V systems, making it suitable for low-voltage RF and wireless signal chains. A phase-locked loop is a feedback-controlled timing system in which a programmable frequency divider and phase-frequency detector compare a divided reference signal with a divided feedback signal. The charge pump converts phase error into a tuning voltage that controls a voltage-controlled oscillator. The ADF4113 belongs to the broader frequency-synthesizer hierarchy, where PLL means phase-locked loop and integer-N describes synthesis through integer prescaler and feedback-counter division. Key features include the 4.0 GHz RF input limit, programmable prescaler, selectable charge-pump currents, and a separate VP supply for greater tuning-voltage headroom. Its integer-N architecture simplifies programming compared with fractional-N synthesizers because the feedback division ratio is an integer. The 20-lead surface-mount package supports compact RF designs, while the exposed pad provides a thermal and electrical connection to the PCB. The internal architecture combines a low-noise digital phase-frequency detector, precision charge pump, programmable reference divider, programmable A and B counters, and a dual-modulus P/P+1 prescaler. The A and B counters determine the feedback division ratio, while the prescaler divides the RF feedback signal before it reaches the phase-frequency detector. This arrangement supports integer-N local-oscillator generation for wireless receivers and transmitters. Typical uses include GSM and other wireless receiver or transmitter local oscillators, radio-frequency down-conversion and up-conversion stages, RF instrumentation, and communications equipment requiring programmable frequency synthesis. The on-chip reference divider is also useful when the available reference frequency must be divided before comparison with the feedback path. The supplied family documentation specifically identifies wireless up-conversion and down-conversion local oscillators as principal applications. Designers should preserve the exposed-pad thermal path and keep RF, reference, and charge-pump routing compact. The separate VP connection can increase tuning-voltage headroom, but it must be connected according to the manufacturer’s recommended application circuit. Input, reference, and feedback layout quality directly affects phase noise and lock behavior, so controlled-impedance routing and short high-frequency paths are important. This product page combines verified manufacturer specifications, distributor availability and pricing references, package information, and a strict assessment of drop-in alternatives. It also distinguishes electrically compatible devices from lower-frequency family members that cannot replace the ADF4113BCP across its full operating range.

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ADF4113BCPZ - 4 GHz Integer-N PLL | Analog Devices
ADF4113BCPZ

ADF4113BCPZ - 4 GHz Integer-N PLL | Analog Devices

The Analog Devices ADF4113BCPZ is a single integer-N phase-locked-loop frequency synthesizer rated up to 4 GHz, with a 5 MHz to 4 GHz operating range and a 20-lead LFCSP exposed-pad package. Its programmable prescaler, precision charge pump, phase-frequency detector, reference divider, and programmable A and B counters support programmable local-oscillator generation for wireless receiver and transmitter signal chains. An integer-N frequency synthesizer is a PLL-based clock and timing IC that locks a voltage-controlled oscillator to a stable reference frequency. The ADF4110 family hierarchy places the device among RF frequency synthesizers, clock generators, timing ICs, and integrated circuits. Integer-N architecture simplifies channel selection by using integer division ratios, while the phase-frequency detector and charge pump compare the divided feedback signal with the divided reference to correct oscillator phase and frequency errors. The ADF4113 supports an input reference frequency up to 165 MHz and an RF synthesis range extending to 4 GHz. Its programmable prescaler and integer-N counters provide flexible division ratios for wireless communications equipment. A low-noise digital phase-frequency detector and precision charge pump form the core feedback loop, supporting stable local-oscillator operation where predictable phase locking and programmable channel spacing are important. The family architecture includes a programmable reference divider, 6-bit A counter, 13-bit B counter, and dual-modulus P/P+1 prescaler. These blocks determine the synthesized output relationship to the reference input. The ADF4113 is therefore suited to RF up-conversion and down-conversion sections where a local oscillator must cover multiple channels without the complexity of fractional-N feedback. Typical uses include wireless receiver and transmitter local oscillators, GSM and RF communication systems, instrumentation equipment, and other frequency-generation subsystems. The 20-lead LFCSP exposed-pad package supports compact surface-mount layouts, while the exposed thermal pad provides a path for heat removal when the device operates in a demanding RF subsystem. Designers should follow the manufacturer datasheet for the pin-description table, recommended loop-filter values, reference-divider settings, charge-pump current selection, and PCB layout. Correct grounding of the exposed pad and careful routing of the reference, RF output, and synthesizer feedback paths are essential for predictable phase-locking performance and low spurious content. This page combines the ADF4113 product identity, package information, application guidance, drop-in comparison, and practical design notes. Use the manufacturer datasheet for final register programming, loop-bandwidth calculations, PCB reference geometry, and operating-limit verification.

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