9FG1200DF-1LF集成电路（IC）的应用特定时钟/定时规格书PDF中文资料

描述 Description

ICS9FG1200D-1 follows the Intel DB1200GS Differential Buffer

Specification. This buffer provides 12 output clocks for CPU Host

Bus, PCIe Gen2, or Fully Buffered DIMM applications. The outputs

are configured with two groups. Both groups (DIF 9:0) and (DIF

11:10) can be equal to or have a gear ratio to the input clock. A

differential CPU clock from a CK410B+ main clock generator,

such as the ICS932S421, drives the . The

can provide outputs up to 400MHz.

Key Specifications

• DIF output cycle-to-cycle jitter < 50ps

• DIF output-to-output skew < 100ps across all outputs in 1:1 mode

• 56-pin SSOP/TSSOP package

• RoHS compliant packaging

Features/Benefits

• Drives 2 channels of 4 FBDIMMs (total of 8 FBDIMMs)

• Power up default is all outputs in 1:1 mode

• DIF_(9:0) can be “gear-shifted” from the input CPU Host

Clock

• DIF_(11:10) can be “gear-shifted” from the input CPU

Host Clock

• Spread spectrum compatible

• Supports output clock frequencies up to 400 MHz

• 8 Selectable SMBus addresses

• SMBus address determines PLL or Bypass mode