Clock for Intel® Chipsets

The W83195CG-NP is a CK410M compliant Clock Synthesizer for Intel P4 processors, which provides all clocks required for high-speed microprocessor and 8 different frequencies of CPU, PCI, PCI-Express clocks setting. Simultaneously W83195CG-NP supports DOT 96MHz clock outputs for integrated graphic chipsets. All clocks are externally selectable with smooth transitions.

W83195CG-NP programs the registers to enable or disable each clock outputs through I²C serial bus interface and provides -0.5% spread spectrum or programmable spread spectrum scale to reduce EMI. It is driven with a 14.318 MHz reference crystal and runs on a 3.3V supply.

• 2 pair 0.7 V current mode Differential clock outputs for CPU
• 6 pair 0.7V current mode Differential clock outputs for SRC and PCIEX.
• 1 pair 0.7V current mode Differential clock outputs for SATA.
• 1 pair 0.7 V current mode Differential clock outputs select for CPUCLK_ITP/SRC.
• 1 pair 0.7V current mode Differential 96MHz clock outputs for DOT.
• 4x PCI clock outputs for PCI, and 2x PCI clock free running outputs for PCI
• 1 48 MHz clock output for USB, and 1x 14.318MHz REF clock outputs.
• I²C 2-Wire serial interface and support byte read/write and block read/write.
• -0.5% spread spectrum or programmable spread spectrum scale to reduce EMI
• Programmable registers to enable/stop each output.