Application Specific Clock/Timing

This Product Selection Guide contains information to help select products in the Application Specific Clock/Timing category on

Products in the application-specific clock & timing IC (integrated circuit) family perform a variety of operations related to generating and distributing time or frequency information within relatively narrow design contexts, such as with central or graphics processing units (CPU, GPU) made by AMD and Intel, DVD audio equipment, Blu-Ray disk players, Ethernet devices, PCIe, SATA, and Fiber Channel interfaces, automotive infotainment busses, and others.


DigiKey Programmable: For verified products, DigiKey can program/flash your compiled code or configuration variables prior to shipping. For unverified products, please inquire with

PLL: Indicates whether or not a device incorporates a phase-locked loop function.

Main Purpose: Indicates a product’s typical application, or a purpose for which a device is specifically designed or adapted.

Input: Enumerates the supported formats for clock/timing signals input to a device.

Output: Indicates the type of electrical signal the device provides, such as CMOS or TTL.

Number of Circuits: Indicates the number of circuits of similar function that are implemented within the device.

Ratio - Input:Output: Indicates the number of signal inputs and outputs present in each functional circuit within a device.

Differential - Input:Output: Indicates if the clock signal inputs/outputs of a device employ or allow use of a differential signalling scheme.

Frequency - Max: Describes a device’s maximum operating frequency; the max rate at which an input power source is switched in the course of the conversion process.

Voltage - Supply: Typically represented by a range, this indicates the low and high voltage limits which one can expect standard operation. Voltages outside this range may damage the device and other system components.

Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.

Mounting Type: Indicates how the device is attached.

Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the suppliers device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.

Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.


MFR PART # Renesas Electronics America Inc
DIGI-KEY PART # 800-2540-2-ND - Tape & Reel (TR)
DESCRIPTION PCI Express (PCIe) Fanout Buffer (Distribution), Zero Delay Buffer IC 110MHz 1 Output 20-TSSOP

MFR PART # Skyworks Solutions Inc.
DIGI-KEY PART # 336-4326-2-ND - Tape & Reel (TR)
DESCRIPTION Ethernet, Fibre Channel, PCI Express (PCIe), Telecom Clock Generator IC 710MHz 1 Output 24-QFN (4x4)

Clock Timing

Clock Timing

If you have any general questions on the specifications for selecting Application Specific Clock/Timing, please reply using the button below. If you have questions on specific Application Specific Clock/Timing please post those questions in the Integrated Circuits (ICs) category.