9SQL4954BNLGI

4-output CK420BQ Derivative 9SQL4954 DATASHEET Description Features/Benefits The 9SQL4954 is a member of IDT's 'Lite' family of server clocks. It generates 4 100MHz outputs that exceed the requirements of the CK420BQ CPU/SRC clocks. Each output has its own OE# pin for clock management and supports 2 different spread spectrum levels in addition to spread off. It also provides a copy of the 25MHz internal XO. The 9SQL4954 supports PCIe Common Clock (CC) and Independent Reference Clock (IR) architectures. • Direct connection to 85 transmission lines; saves 16 • • PCIe Gen1, Gen2, Gen3, Gen4 Server Clock • • • • Output Features • • 4 -100MHz Low-power HCSL (LP-HCSL) CPU/SRC pairs • Integrated terminations for 85Ω Zout • 1 - 3.3V LVCMOS REF output w/Wake-On-LAN (WOL) • Recommended Application • support Key Specifications resistors and 27mm2 compared to standard HCSL 142mW typical power consumption; eases thermal concerns @ 1/10 the power of CK420BQ Contains default configuration; SMBus interface not required for device operation OE# pins; support BCLK power management 25MHz input frequency; standard crystal frequency 25MHz REF output; eliminates XO from boar Pin/SMBus selectable 0%, -0.25% or -0.5% spread on DIF outputs; minimize EMI and phase jitter for each application BCLK outputs blocked until PLL is locked; clean system start-up Two selectable SMBus addresses; multiple devices can easily share an SMBus segment Space saving 32-pin 5x5mm VFQFPN; minimal board space • BCLK outputs: • Cycle-to-cycle jitter