9FGP202A

FREQUENCY TIMING GENERATOR FOR PERIPHERALS DATASHEET 9FGP202A General Description The 9FGP202A is a peripheral clock for Intel Server. It is driven with a 25MHz crystal and generates CPU outputs up to 400MHz. An SMBus interface allows full control of the device. Recommended Application Peripheral Clock for Intel Server Output Features 1 - 0.7V current-mode differential CPU pair 8 - 50MHz output 1 - DOT 96MHz output 1 - 33.33MHz output 1 - 32.768KHz output 2 - 25MHz REF outputs Block Diagram Features/Benefits Selectable SMBus Address – D0/D1 or C0/C1 Spread Spectrum capability on CPU and DOT 96MHz clocks SMBus Control: – M/N and spread programming on CPU and DOT 96MHz clocks via SMBus – Outputs can be disabled via pins or SMBus Key Specifications Exact synthesis on CPU, RMII and 33.33MHz clocks +/- 100ppm frequency accuracy on remaining clocks X1_25 X2_25 XTAL CPU PLL (SPREAD CAPABLE) 25MHz(1:0) CPUCLK VttPwr_GD/PD# OE_CPU OE_96 OE_RMIIA OE_RMIIB SMBADR SMBDAT SMBCLK CONTROL LOGIC DOT PLL (SPREAD CAPABLE) FIXED PLL DIVIDERS 8 DIVIDERS DOT96SS 33.33MHz RMII(7:0) 32.768KHz IDT® FREQUENCY TIMING GENERATOR FOR PERIPHERALS 1 9FGP202A REV D 070511 9FGP202A FREQUENCY TIMING GENERATOR FOR PERIPHERALS Pin Configuration VttPwr_GD/PD# S MBD AT S MBC LK RM II0 RMII 1 GND RMII VDDRMII RMII2 R MII3 OE_ RMIIA 40 39 38 37 36 35 34 33 32 31 GND 1 30 OE_RMIIB VDD96 2 DOT96SST 3 29 RMII4 28 RMII5 DOT96SSC 4 27 GND RMII OE_96 5 OE_CPU 6 9FGP202 ...