Clock Distribution

Renesas clock distribution products condition, manipulate, and distribute clock signals, with or without a phase-locked loop (PLL). These devices are well-suited for most applications with good quality input signals where the goal is to buffer, fan-out, divide, or multiplex the input signal. Single-output clock buffers can also translate a clock from one signaling standard to another, such as LVCMOS-in to LVPECL-out.

As the industry leader in timing solutions, we deliver clock buffer, clock distribution, and multiplexer solutions to meet the needs of virtually any application. We offer the largest portfolio of clock distribution devices that support differential signals. These devices support common I/O levels, including LVDS, LVPECL, HCSL, LVCMOS, CML, HSTL, and SSTL.

Reduced System Noise Floor

Low jitter and skew minimize timing uncertainty in clock signals, reducing system noise floor and improving signal integrity.

Programmable Design Flexibility

Fine tuning for frequencies and phase alignment simplify system integration and reduce the need for fixed-frequency components.

Wide Voltage Range

Compatibility across system architectures enables seamless voltage level integration, simplifying design and reducing BOM complexity.

Robust Integration

Reduced need for external components cuts system cost and saves board space, improving reliability and manufacturing efficiency.

Design Versatility

Built-in OTP (one-time programmable memory) allows permanent configuration of key parameters, simplifying customization.

Product Portfolio

Compare All Products

Clock Buffers & Drivers

ICs that are ideal for clock and signal distribution in a variety of systems

Clock Dividers

Selection of clock dividers that divide and buffer the input frequency

Clock Multiplexers (MUX)

ICs that allow fast switching between multiple clock signal inputs

Zero Delay Buffers (ZDB)

Buffers that provide a synchronous copy of the input clock at the outputs

Choosing a Clock Distribution Device

Clock distribution devices can be classified in many different ways. In some cases, designers may want to take the incoming clock and distribute it to multiple destinations without modifying the clock frequency. In other cases, designers may need to divide it down or multiplex it with other clocks.

A zero delay buffer may be needed in some clock distribution applications. These PLL-based devices regenerate the input clock signal with fanout to drive multiple loads. Most devices allow adjustments to the delay through the device through an external feedback path.

Clock Distribution Network

A clock distribution network (often referred to as a clock tree) distributes clock signals from a common source to all the electrical components that require it. This function is vital to the operation of a synchronous system, so much attention must be given to the clock signal characteristics and the electrical networks used in their distribution. Proper clock distribution network design helps satisfy critical timing requirements, ensuring reliable operation and optimal performance.

Applications

AMD 4th-Gen EPYC (Genoa) Power & Timing System

eCPRI Mass MIMO for RRU

Get Started with Clock Configuration Tools

IC Toolbox for Clock & Kit Setup

A graphical platform that streamlines evaluation kit and clock device setup. Supports OTP/EEPROM programming, profile creation, and reference designs—helping you bring complex timing systems online faster.