ICS950812 Overview
Integrated Circuit Systems, Inc. ICS950812 Frequency Generator with 200MHz Differential CPU Clocks Remended Application: CK-408 clock with Buffered/Unbuffered mode supporting VDDREF 1 56 REF Almador, Brookdale, ODEM, and Montara-G chipsets with X1 2 55 FS1 PIII/P4 processor.
ICS950812 Key Features
- 3 Differential CPU Clock Pairs @ 3.3V PCICLK_F1 6 51 CPUCLKC0
- 1 REF (3.3V) @ 14.318MHz --E_PCICLK1/PCICLK1 11 46 VDDCPU
- 1 VCH/3V66 (3.3V) @ 48MHz or 66.6MHz VDDPCI 14 43 MULTSEL
- Selectable 1X or 2X strength for REF via I C interface -PD# 25 32 VDD3V66 VDDA 26 31 GND
- Efficient power management scheme through PD#, GND 27 30 SCLK CPU_STOP# and PCI_STOP#. Vtt_PWRGD# 28 29 SDATA
- Uses external 14.318MHz crystal
- Stop clocks and functional control available through 56-Pin 300mil SSOP I2C interface. 6.10 mm. Body, 0.50 mm. pitch TSS
- These inputs have 120K internal pull-up resistors to VDD
- CPU Output Jitter <150ps -- Internal pull-down resistors to ground
- 3V66 Output Jitter <250ps Note