ICS276PG - Triple PLL 200MHz VCXO | Renesas Electronics
Référence : ICS276PG ✓ ActifICS276PG Présentation
A VCXO is a voltage-controlled crystal oscillator, while a clock synthesizer combines oscillator and programmable frequency-generation functions into a timing IC. The ICS276PG belongs to the clock and frequency synthesizer category, within the broader clock and timing IC and semiconductor hierarchies. Its architecture is intended to generate multiple related clock outputs from a reference source while supporting frequency programming and PLL bypass operation.
Three independently available output positions provide flexible clock distribution for systems that require multiple reference or working clocks. A maximum output frequency of 200 MHz makes the device suitable for communications, control, test, instrumentation, and digital processing systems operating from a single reference crystal. CMOS outputs support integration with modern digital logic, while the field-programmable architecture simplifies adaptation across different clock plans.
The ICS276PG uses a single PLL circuit with bypass capability and accepts a crystal reference. PLL synthesis enables the device to derive one or more output frequencies from the reference, while bypass provides a path for configurations that require the reference clock directly. The 3.135 V minimum and 3.465 V maximum supply limits indicate a narrow, regulated 3.3 V operating environment, so the system supply must remain within that range during startup, steady-state operation, and frequency changes.
Typical uses include communications transceiver clocking, instrumentation clock trees, embedded-control reference generation, FPGA or processor timing support, and multi-output laboratory systems. Its three-output architecture is especially useful when several logic domains need coherent clocks, although jitter, supply-noise behavior, output configuration, and programming details must be checked against the complete manufacturer datasheet before high-volume clock-tree deployment.
A key implementation consideration is the relationship between the 3.3 V supply tolerance and the device specification. Decoupling should be placed close to the supply pins, the crystal network must follow the recommended layout, and every output must be checked for the required frequency, amplitude, and loading. Avoid assigning functions to a pin until its output configuration and routing requirements have been confirmed in the pin-description table.
Alternatives de remplacement direct pour ICS276PG — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesICS276PG Spécifications
| Device Type | Triple PLL field-programmable VCXO clock synthesizer |
| Maximum Output Frequency | 200 MHz |
| Supply Voltage Range | 3.135 V to 3.465 V |
| Type de sortie | CMOS |
| Reference Input | Crystal |
| PLL | Yes, with bypass |
| Number of Circuits | 1 |
| Number of Clock Outputs | 3 |
| Boîtier | 16-TSSOP |
| Package Width | 4.40 mm |
| Type de montage | Surface mount |
| RoHS Compliance | unknown |
| REACH Compliance | unknown |
| AEC-Q100 Qualification | not_applicable |
Guide de configuration des broches du ICS276PG 4.40 mm
Configuration des broches du ICS276PG (boîtier 4.40 mm). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour ICS276PG.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ICS276PG convient pour 6 applications: Communications Transceiver Clocking, FPGA and Processor Timing, Precision Test and Measurement, Industrial Control and Data Acquisition, Audio and Instrumentation Clock Tree, Programmable Logic Timing Hub.
Communications Transceiver Clocking
The ICS276PG fits communications equipment requiring multiple related clocks for transmit, receive, digital processing, and reference functions. Its three CMOS outputs can distribute clocks derived from one crystal reference, while the documented maximum frequency of 200 MHz supports high-speed digital timing needs. The principal design trade-off is the narrow 3.135 V to 3.465 V supply range: the board must provide stable 3.3 V power and follow the recommended decoupling and output-routing layout. Confirm channel-specific frequency limits, jitter, phase noise, and PLL programming values against the manufacturer datasheet before assigning outputs to critical RF or digital paths.
FPGA and Processor Timing
The ICS276PG can supply related system clocks to an FPGA, processor, memory controller, and programmable logic in a compact design. Three outputs reduce the need for independent oscillators when several logic blocks require clocks derived from a common reference. The 200 MHz maximum output frequency covers many control and processing-clock requirements, but each output still requires a valid frequency configuration and an appropriate CMOS load. Place the crystal network close to the device, isolate sensitive clock routes from noisy switching nodes, and verify acquisition behavior and jitter margins before using bypass or changing PLL settings during production.
Precision Test and Measurement
The ICS276PG is applicable to test and measurement instruments that require internally generated clocks for converters, counters, data-acquisition paths, or digital control logic. A crystal reference improves frequency stability relative to an uncalibrated free-running oscillator, while three outputs support a small internal clock tree. Its maximum output frequency of 200 MHz supports common digital measurement subsystems, although the design must account for the device's narrow 3.3 V supply limits. For laboratory-grade timing accuracy, evaluate phase noise, output jitter, reference specifications, and calibration strategy separately from the basic 200 MHz frequency capability.
Industrial Control and Data Acquisition
The ICS276PG can organize a control or data-acquisition system around a common crystal reference and three programmed output clocks. This arrangement is useful where ADC control, sensor interfaces, isolation boundaries, and digital signal processing require coordinated timing. The 16-TSSOP package supports compact implementation, and CMOS outputs integrate directly with digital logic. Designers should divide the available outputs according to sensitivity and jitter requirements, keep the 3.3 V supply within 3.135 V to 3.465 V, and use short clock routes with continuous reference planes where practical. Grounding and return paths should remain independent from high-current switching nodes.
Audio and Instrumentation Clock Tree
The ICS276PG can provide a compact multi-clock source for audio, measurement, and control subsystems requiring coherent frequencies across several functional blocks. Its triple-output capability is useful when converter, digital processor, and interface sections need separately configured clocks derived from one reference. The device's PLL and bypass functions allow the clock plan to be adapted during design or test, subject to the documented programming procedure. For audio-adjacent circuits, maintain short return paths, isolate the crystal oscillator from digital switching energy, and verify phase-noise and jitter effects at each receiving block rather than relying only on the 200 MHz maximum-frequency rating.
Programmable Logic Timing Hub
The ICS276PG serves as a timing hub in programmable-logic systems where one crystal reference must support several independently programmed clock domains. Its single PLL with bypass and three outputs provides a practical architecture for coordinating counters, serial links, acquisition channels, and control engines. The maximum frequency of 200 MHz makes it appropriate for many mid-speed logic systems, while the narrow 3.3 V operating range calls for careful supply regulation. Validate every output frequency against the internal divider limits, confirm output configuration after reset, and reserve test points for observing clock presence during bring-up and fault diagnosis.
Données de référence d'ingénierie pour ICS276PG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Device Type | Triple PLL field-programmable VCXO clock synthesizer |
| Brand | Renesas Electronics |
| Package | 16-TSSOP |
| Maximum Output Frequency | 200 MHz |
| Supply Voltage Range | 3.135 V to 3.465 V |
| Number of Outputs | 3 |
| Output Type | CMOS |
| Reference Input | Crystal |
| PLL Bypass | Yes |
| Number of PLL Circuits | 1 |
Notes de conception
Use the manufacturer pin-description table when assigning the 16-TSSOP pins and route the crystal, supply, control, and clock signals according to the recommended reference layout. Keep oscillator traces short, avoid running them beneath or parallel to fast switching nets, and provide a continuous ground reference beneath the device. Confirm whether any exposed-pad or thermal-pad treatment is required by the exact package drawing before fabrication.
The ICS276PG operates only from 3.135 V to 3.465 V, so a nominally regulated 3.3 V rail must remain inside those limits during startup and load transients. Place the required bypass capacitors close to the supply pins, provide a low-impedance return path, and isolate the clock supply from noisy switching stages where the board architecture permits. Validate power sequencing and startup behavior before enabling downstream circuitry.
Treat each of the three CMOS outputs as a timing signal rather than a generic logic connection. Match the receiver and trace topology to the output's specified loading and edge characteristics, avoid excessive loading, and use short routes for the highest-frequency clocks. Review the output configuration and bypass state at reset so downstream logic never receives an unexpected clock before the system is ready.
Do not select a replacement solely because it also has three outputs or reaches 200 MHz. A true drop-in choice must preserve the 16-TSSOP pin mapping, crystal interface, 3.135 V to 3.465 V supply range, PLL-bypass behavior, programming method, output loading, and timing performance. Review startup acquisition, jitter, phase noise, and output-disable behavior before releasing a substitute for production.
Informations de conformité
No definitive compliance declarations are identified for ICS276PG. AEC-Q100 is not applicable because the product is a clock and timing IC rather than an automotive-qualified component.