PCK2021 Overview
The PCK2021 is a clock synthesizer/driver for a Pentium III™ and other similar processors. The PCK2021 has six differential pair CPU current source outputs, two 33 MHz outputs, one 3V66 output, and two 48 MHz clocks which can be disabled on power-up, and one 3.3 V reference clock at 14.318 MHz which can also be disabled on power-up. The part possesses a dedicated power-down input pin for power management control.
PCK2021 Key Features
- 3.3 V operation
- Six differential CPU clock pairs
- Two PCI clocks at 33 MHz and one 3V66 clock
- Two 48 MHz clocks at 3.3 V
- One 14.318 MHz reference clock
- Power management control pins
- Host clock jitter less than 200 ps cycle-to-cycle
- Host clock skew less than 150 ps pin-to-pin
- Spread Spectrum capability
- Optimized frequency and spread spectrum performance