C9851
Key Features
- Six pairs of current referenced differential clocks Two 3V 180° displaced Mref clocks for DRCG One 66.6 MHz reference output One 14.318 MHz reference output Select logic for Differential Swing Control, Test mode, Hi-Z, Power-down, Spread spectrum, and limited frequency select Cypress Spread Spectrum for EMI reduction 48 Pin SSOP Package Product Description This device provides the necessary clocks for a differential host bus system in multi-processor servers and workstations. It also generates a 66.6MHz hub clock for interfacing with a complimentary part, the Cypress B9852. The 2 Mref clock outputs are 180 degrees out of phase and are used for interfacing with the Direct Rambus Clock Generator (DRCG), C9820, C9821, or C9822. This device integrates the Cypress spread spectrum technology for optimum EMI reduction. Frequency Selection Table
