Pericom Semiconductor PI6C2504
The PI6C2504 features a low-skew, low-jitter, phase-locked loop (PLL) clock driver, distributing high-frequency clock signals for SDRAM and server applications. By connecting the feedback FB_OUT output to the feedback FB_IN input, the propagation delay from the CLK_IN input to any clock output will be nearly zero.FEATURES
● High-Performance Phase-Locked-Loop Clock Distribution for Networking● Registered DIMM Synchronous DRAM modules for server/workstation/PC applications
● Allows Clock Input to have Spread Spectrum modulation for EMI reduction
● Zero Input-to-Output delay
● Low jitter: Cycle-to-Cycle jitter ±100ps max.
● On-chip series damping resistor at clock output drivers for low noise and EMI reduction
● Operates at 3.3V VCC
● Wide range of Clock Frequencies up to 80 MHz
● Package: Plastic 16-pin QSOP Package (Q) Product
DESCRIPTION
Logic Block Diagram G 4 PLL FB_IN AVCC FB_OUT Y[0:3] Product Pin Configuration AGND VCC Y0 Y1 GND 1 2 3 4 5 6 7 8 16 15 CLK_IN AVCC GND GND Y3 Y2 VCC FB_IN CLK_IN 16-Pin Q 14 13 12 11 10 9 Functional Table Inputs G L H Y[0:3] L CLK _IN Outputs FB_O UT CLK _IN CLK _IN VCC G FB_OUT 1 PS8380A 07/17/00 PI6C2504 Phase-Locked Loop Clock Driver with 4 Clock Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Pin Functions Pin Name CLK _IN FB_IN G FB_O UT Y[0:3] AVC C AGND VC C GND Pin No.