ICS308R - 200 MHz Quad PLL VersaClock | Integrated Device Technology
Teilenummer: ICS308R ✓ Aktiv| Menge | Stückpreis | Gesamt |
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ICS308R Übersicht
A PLL clock synthesizer, also called a frequency synthesizer, generates or distributes multiple clock signals from one or more reference inputs. The ICS308R belongs to the clock-generator and timing-control hierarchy, where accurate frequency generation is used to synchronize digital processors, communications links, converters, and test equipment.
The principal verified features are four PLL functions, serial programmability, on-the-fly output reprogramming, and as many as six independent output frequencies. These characteristics make the device useful when a system needs flexible clock-tree generation rather than one fixed oscillator. The 200 MHz maximum output makes it suitable for high-speed digital timing domains, while the 250 kHz lower limit supports slower control and interface clocks.
The ICS308R is identified as a clock or frequency synthesizer IC with one input-side reference arrangement and multiple programmable outputs. Its frequency generation is controlled through a serial programming interface, allowing the system to adjust operating frequencies as operating modes change. The exact output count, programming levels, reference frequency, jitter, and propagation characteristics are not present in the supplied search data and should be confirmed from the manufacturer datasheet before final design release.
Typical applications include communications infrastructure, networking equipment, industrial automation, test and measurement systems, embedded processors, and mixed-signal products requiring several related clock domains. The SSOP-20 package supports conventional surface-mount assembly, but its narrow pitch requires careful PCB layout and reliable land-pattern construction.
When designing around the ICS308R, preserve the specified power-supply range, connect decoupling capacitors near the supply pins, and validate every programming sequence against the manufacturer timing requirements. Output frequency accuracy and clock-jitter performance depend on the reference source, loop configuration, output loading, and board implementation; these values are not stated in the supplied excerpts and are marked for verification.
Drop-in-Alternativen für ICS308R – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
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Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernICS308R Technische Daten
| Device Type | Clock Generator / Frequency Synthesizer IC |
| Architecture | Serially programmable quad PLL VersaClock synthesizer |
| Maximum Output Frequency | 200 MHz |
| Minimum Output Frequency | 250 kHz |
| Simultaneous Output Frequencies | Up to 6 |
| Supply Voltage Range | 3 V to 3.6 V |
| Gehäuse | 20-pin SSOP, 0.150 inch width |
| Montageart | Surface Mount |
| Programming | Serial programmable |
| Output Reconfiguration | Outputs can be reprogrammed on the fly |
| Betriebstemperaturbereich | 0 °C to 70 °C |
| PLL Count | 4 PLL functions |
| Output Frequency Description | Any frequency from 250 kHz to 200 MHz |
ICS308R 20-pin ssop, 0.150 inch width Pinbelegungsleitfaden
Pinbelegung für ICS308R (20-pin ssop, 0.150 inch width-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für ICS308R.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ICS308R ist geeignet für 6 Anwendungs: Networking Communications Clocks, Industrial Automation Timing, Test and Measurement Instruments, Embedded Processor Clock Trees, Mixed-Signal and Conversion Systems, Consumer and Communication Products.
Networking Communications Clocks
The ICS308R fits networking and communications equipment that needs several related clock domains from a programmable source. Its verified 250 kHz to 200 MHz output range covers low-speed control references and substantially faster digital interfaces, while the quad-PLL architecture can organize multiple frequencies in one device. Serial programming allows the system controller to configure the clock tree during initialization or mode changes. The primary design checks are reference-clock quality, output jitter, lock time, and whether the selected output configuration meets the communication link’s timing budget.
Empfohlen
Industrial Automation Timing
ICS308R can support industrial automation systems that coordinate processors, converters, sensors, and communication interfaces with deterministic clock relationships. The 200 MHz maximum output provides headroom for high-speed digital control blocks, while lower programmable frequencies can serve slower peripheral domains. The on-the-fly reprogramming feature is useful when a controller changes operating modes. Because the supplied data does not specify jitter or lock-time limits, an industrial design should confirm timing margins across temperature and supply before using ICS308R as the system clock reference.
Empfohlen
Test and Measurement Instruments
The ICS308R is appropriate for test and measurement products that require multiple selectable clock outputs rather than a single fixed frequency. Its serial programmability makes it possible to configure different output frequencies for different operating modes, and its 250 kHz to 200 MHz range supports both low-rate reference work and high-rate digital blocks. Instrumentation designs should verify output accuracy, jitter, crosstalk, and clock-output enable behavior against the instrument specifications. The supplied sources do not provide those quantitative values, so instrument release must use the manufacturer’s full electrical data.
Empfohlen
Embedded Processor Clock Trees
ICS308R can provide a configurable clock tree for an embedded processor platform that uses several unrelated internal and peripheral frequencies. The quad-PLL structure and serial programming simplify centralized clock distribution, while the broad frequency range supports both processor-related timing and slower control functions. Designers should ensure the reference input and programming firmware meet the device’s timing requirements and should account for startup sequencing and frequency changes. Because exact PLL settings are not included in the supplied data, validation should use the official programming table and timing diagrams.
Empfohlen
Mixed-Signal and Conversion Systems
The ICS308R is useful in mixed-signal systems where digital control, converters, and communication blocks need several clock frequencies derived from a controlled source. The programmable output range can reduce the number of unrelated fixed oscillators, while the quad-PPL architecture provides flexibility for clock partitioning. The design must still account for supply decoupling, clock routing, output loading, and the relationship between reference jitter and measurement accuracy. The supplied excerpts do not state analog clock specifications, so this application requires confirmation from the complete manufacturer datasheet.
Empfohlen
Consumer and Communication Products
ICS308R can serve consumer and communication products whose clock requirements change with operating mode. Its serial programming interface allows a host controller to select frequency relationships without physically replacing the clock source, and the 20-pin SSOP package supports compact surface-mount assemblies. For a consumer design, the principal questions are power consumption, output-noise contribution, start-up behavior, and availability. Those specifications are not included in the supplied data, so engineers should verify them against the current Renesas or IDT documentation and validate the final board layout.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ICS308R – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt |
|---|---|
| Package | 20-pin SSOP |
| Brand | Renesas Electronics |
| Device Type | Clock Generator / Frequency Synthesizer IC |
| Architecture | Serially programmable quad PLL VersaClock synthesizer |
| Maximum Output Frequency | 200 MHz |
| Minimum Output Frequency | 250 kHz |
| Simultaneous Output Frequencies | Up to 6 |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature Range | 0 °C to 70 °C |
| Programming Interface | Serial programming |
Wichtigste Unterscheidungsmerkmale
- Multi-output clock generation (vs. Fixed-frequency clock oscillator)
- Runtime configuration (vs. Fixed-configuration clock source)
- Integrated PLL architecture (vs. Single-output oscillator)
Designhinweise
Design the ICS308R supply rail within the verified 3 V to 3.6 V range and place the required decoupling capacitors close to the device power pins. Because the supplied data does not state supply current, rail tolerance, or sequencing requirements, confirm those values in the manufacturer datasheet before selecting regulators, ferrite beads, or power-rail isolation components.
Use the manufacturer’s SSOP-20 land pattern and preserve pin numbering exactly when making the PCB footprint. Route clock outputs as short as practical, maintain consistent return paths, and keep the serial programming traces away from noisy switching nodes. The supplied sources do not provide exact trace-width or clearance guidance, so those dimensions must come from the official layout documentation.
Validate the reference clock and each generated output with the final board, including loading, jitter, edge quality, and mode changes. ICS308R supports on-the-fly reprogramming according to the supplied descriptions, but lock time, output glitch behavior, and whether a frequency change interrupts downstream logic are not specified. Measure these characteristics before relying on dynamic reconfiguration.
Do not substitute ICS308R-T-LF or ICS308RI solely because the names are similar. The supplied results mention both parts but do not verify identical pinout, package dimensions, serial interface, frequency limits, or timing behavior. Obtain the official ordering table and datasheet for any candidate replacement and compare every connection and programming sequence.
Compliance-Informationen
Compliance information was not present in the supplied verified web excerpts and must be confirmed from the current Renesas or IDT product documentation.
