Overview

Description

The IDT9EX21501 provides 15 output clocks for PCIe Gen2 (100MHz) or QPI (133MHz) applications. The 9EX21501 has 4 selectable SMBus addresses, and dedicated CKPWRGD/PD# and VDDA pins for easy board design. A differential CPU clock from a CK410B+ main clock generator, such as the IDT932S421, drives the IDT9EX21501. In fanout mode, the 9EX21501 provides outputs up to 400MHz.

Features

  • Supports output clock frequencies up to 400 MHz
  • 4 Selectable SMBus addresses
  • SMBus address is independent of PLL operating mode
  • Dedicated CKPWRGD/PD# and VDDA pins ease board design

Comparison

Applications

Documentation

Design & Development

Models

Videos & Training

PCIe Clocking Architectures (Common and Separate)

This is the first video in our PCIe series. In this video, we define PCIe architectures, focusing on common and separate clock architectures. Watch the rest of the video series below where Ron will cover the impact of different timing architectures.

Watch the Video Series Below