ICS348RP - 200MHz Quad-PLL Clock Synthesizer | Renesas
Teilenummer: ICS348RP ✓ AktivICS348RP Übersicht
A clock generator is an integrated circuit that creates one or more timing references from a stable source. A frequency synthesizer extends this function by multiplying, dividing, or otherwise transforming a reference frequency. The ICS348RP places four PLLs and multiple output stages in one timing IC, allowing a system to distribute related reference and working clocks while avoiding a collection of separate oscillator and divider circuits.
The ICS348RP supports a crystal or clock input, includes PLL bypass capability, and can produce as many as nine clock outputs. These characteristics make it useful where a board needs several coordinated frequencies for processors, memory, serial links, converters, or data-conversion equipment. Because the device is field programmable, system designers can configure output behavior rather than relying only on fixed factory frequencies.
Its quad-PLL architecture provides the central mechanism for deriving multiple clock outputs from a common low-frequency reference. Maintaining a shared reference can simplify synchronization across subsystems and reduce the number of separate frequency-generation components. The bypass path is important during development because it provides a way to evaluate clock-source conditions without relying on every PLL operating at once.
Typical applications include communications equipment, test and measurement instruments, industrial control systems, data-acquisition modules, and embedded computing platforms. The device is especially relevant when a design needs several related high-frequency outputs but has limited board space or wants to centralize clock generation in one programmable component.
Layout should preserve short, controlled clock paths and place support components near their associated pins. Differential and high-speed routing requires careful return-path planning, while power and ground distribution should remain stable across the clock-generation domain. Designers should verify output frequency, jitter, phase relationship, and bypass behavior against the final system timing budget.
This product page organizes the key clock-synthesis facts, package information, practical use cases, and engineering guidance for ICS348RP. It also highlights the distinction between electrical substitutes and package-only order-code variants so procurement and design teams can evaluate compatibility correctly before making an engineering change.
Drop-in-Alternativen für ICS348RP – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernICS348RP Technische Daten
| Product Type | Field-programmable clock synthesizer |
| PLL Architecture | Quad PLL |
| Maximum Output Frequency | 200 MHz |
| Maximum Number of Outputs | 9 outputs |
| Output Logic Type | LVCMOS |
| Input Types | Crystal or external clock |
| PLL Bypass | Supported |
| Device Family | VersaClock synthesizer |
| Gehäuse | 20-pin QSOP/SSOP |
| Package Width | 3.90 mm |
| Montageart | Surface mount |
ICS348RP 3.90 mm Pinbelegungsleitfaden
Pinbelegung für ICS348RP (3.90 mm-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für ICS348RP.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ICS348RP ist geeignet für 6 Anwendungs: Communications Module Clocking, Industrial Control and Automation, Test and Measurement Instrumentation, Data Acquisition and Conversion, Embedded Processor Platforms, Synchronized Data Processing.
Communications Module Clocking
The ICS348RP fits communications modules that need multiple related clock outputs rather than one isolated oscillator. Its four PLLs, maximum 200 MHz operating frequency, and capability to generate up to nine outputs allow a common reference to feed data converters, serial interfaces, processors, and other timing-sensitive blocks. A crystal or external clock can serve as the reference, while PLL bypass provides a useful diagnostic path during initialization. The primary design benefit is centralized clock planning: engineers can assign outputs to different functional domains while retaining a shared frequency relationship. Final suitability depends on the required output frequencies, jitter, channel timing, supply conditions, and receiver specifications, which should be checked against the manufacturer datasheet and validated at each endpoint.
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Industrial Control and Automation
Industrial controls often combine a processor, data converters, communication links, and timing-sensitive peripherals that need predictable clock relationships. The ICS348RP can centralize those references in a programmable quad-PLL device capable of producing up to nine outputs with frequencies up to 200 MHz. A crystal input is useful where long-term frequency stability is required, while an external clock input allows the module to synchronize with a higher-level system reference. PLL bypass helps isolate source and distribution problems during commissioning. For factory equipment, designers should still verify industrial temperature requirements, supply-voltage tolerance, electromagnetic compatibility, and output jitter before releasing the design for production use.
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Test and Measurement Instrumentation
Test and measurement instruments often require several clock domains for acquisition, conversion, computation, and communication. The ICS348RP supports up to nine programmable outputs and a maximum frequency of 200 MHz, making it useful when a single reference must feed multiple functional blocks. The four-PLL arrangement permits related output frequencies to be organized around one timebase, reducing clock-source proliferation. For instrumentation, the bypass path can assist controlled troubleshooting, while the field-programmable architecture allows output assignments to be revised more readily than with a fixed oscillator. Engineers should budget the overall timing closure across ADC and DAC clock latency, serial-link margins, board skew, and the jitter contribution from every clock-consuming device.
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Data Acquisition and Conversion
Data-acquisition cards can benefit from centralized clock generation when converters, control processors, and digital interfaces must operate from coordinated references. The ICS348RP accepts a crystal or external clock and generates up to nine LVCMOS outputs, allowing a compact timing architecture for multiple converter channels and support logic. At rates up to 200 MHz, the device supports systems that need more than a simple low-speed oscillator. The design challenge is maintaining a consistent clock topology across the card: route outputs according to their jitter and isolation requirements, match trace lengths where the interface specification calls for it, and verify converter aperture requirements separately from general processor timing. PLL bypass is valuable for separating reference-quality problems from downstream logic failures.
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Embedded Processor Platforms
The ICS348RP is appropriate for embedded platforms that need more clock outputs than a processor's internal oscillator can economically provide. Its programmable quad-PLL design can derive multiple related frequencies from one crystal or clock source, covering processor, storage, communications, and peripheral clock requirements in a single 20-pin package. Up to nine outputs provide capacity for designs with several timing domains, and PLL bypass can simplify clock initialization and validation. The external clock option also permits synchronization with another board-level timing domain. Before implementation, confirm the processor's input tolerance, required duty cycle, maximum operating frequency, and sequencing requirements, and ensure each output remains within the clock-synthesizer's electrical and timing limits across the intended supply and temperature conditions.
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Synchronized Data Processing
The ICS348RP can support systems where several processors, converters, and serial links must exchange data while sharing a stable timing relationship. A common reference feeding up to nine outputs simplifies synchronization compared with independent oscillators that can drift relative to one another. The four-PLL architecture supports programmable frequency generation, while the maximum 200 MHz output rate covers demanding digital timing domains. For robust implementation, define which clocks may share a PLL and which require independent phase relationships, then account for deterministic and random jitter separately. Preserve continuous return paths under high-speed outputs and observe any required trace-length matching. PLL bypass should be included in validation plans so engineers can isolate reference failures from downstream processing errors during production test.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ICS348RP – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt |
|---|---|
| Manufacturer | Renesas Electronics |
| Brand | Renesas Electronics |
| Package | 20-pin QSOP/SSOP |
| Product Type | Field-programmable clock synthesizer |
| PLL Count | 4 PLLs |
| Maximum Output Frequency | 200 MHz |
| Maximum Output Count | 9 outputs |
| Output Logic | LVCMOS |
| Reference Input | Crystal or external clock |
| PLL Bypass | Supported |
Wichtigste Unterscheidungsmerkmale
- Nine-output clock-generation capacity (vs. ICS348RPT)
- Shared 200 MHz timing capability (vs. ICS348RPT)
- Integrated diagnostic clock path (vs. ICS348RPT)
Designhinweise
Place the reference-source components and clock output connections according to the manufacturer pin-description table and reference layout. Keep clock traces short, route them over a continuous ground plane, and avoid unnecessary reference-plane transitions. If outputs must cross split planes, provide a defined return path because a discontinuity can introduce cycle-to-cycle jitter that does not appear in a simple trace-length calculation.
Build the clock-distribution topology around each receiver's input impedance, load, and timing tolerance rather than treating every output as interchangeable. Terminate unused outputs according to the datasheet guidance, observe trace-length matching requirements where applicable, and keep clock routes away from high-current switching nodes. Validate rise time, fall time, duty cycle, and jitter at the endpoints after the complete board is assembled.
Do not treat the ICS348RPT suffix as a different functional clock device; it is a packaging order variant of the ICS348RP. Conversely, a component sharing the 20-pin package should not be considered a drop-in replacement without checking pin assignments, programming interface, reference input, output count, frequency range, and timing performance. Use PLL bypass during bring-up to distinguish reference-clock problems from downstream PLL or load issues.
Compliance-Informationen
The ICS348RP manufacturer datasheet and product listings do not state the requested compliance status. Confirm current environmental, automotive, and material declarations with Renesas before production release.
