9SQL4958BNDGI8 datasheet(1/20 Pages) IDT

部件名	9SQL4958BNDGI8

功能描述	8-output CK420BQ Derivative

PDF	20 Pages

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制造商	IDT [Integrated Device Technology]

网页	http://www.idt.com

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1 / 20 page

DATASHEET

9SQL4958 OCTOBER 28, 2016

1

8-output CK420BQ Derivative

9SQL4958

Description

The 9SQL4958 is a member of IDT's 'Lite' family of server

clocks. It generates 8 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

9SQL4958 supports PCIe Common Clock (CC) and

Independent Reference Clock (IR) architectures.

Recommended Application

PCIe Gen1, Gen2, Gen3, Gen4 Server Clock

Output Features

• 8 -100MHz Low-power HCSL (LP-HCSL) CPU/SRC pairs

• Integrated terminations for 85Ω Zo

• 1 - 3.3V LVCMOS REF output w/Wake-On-LAN (WOL)

support

Key Specifications

• BCLK outputs

• Cycle-to-cycle jitter <50ps

• Output-to-output skew <50ps

• PCIe Gen1, Gen2, Gen3, Gen4 CC compliant

• PCIe Gen2, Gen3 IR compliant

• QPI/UPI compliant

• SAS12G compliant (SSC off)

• 12k-20M phase jitter <2ps rms (SSC off)

• REF output:

• Phase jitter <200fs rms (SSC off)

• ±50ppm frequency accuracy on all clocks

Features/Benefits

• Direct connection to 85 transmission lines; saves 32

resistors and 55mm2 compared to standard HCSL

• 132mW typ. power consumption; eases thermal concerns

@ 1/10 the power of CK420BQ

• Contains default configuration; SMBus interface not

required for device operation

• OE# pins; support BLCK power management

• 25MHz input frequency; standard crystal frequency

• 25MHz REF output; eliminates XO from board

• Pin/SMBus selectable 0%, -0.25% or -0.5% spread on

BLCK outputs; minimize EMI and phase jitter for each

application

• BLCK outputs blocked until PLL is locked; clean system

start-up

• Two selectable SMBus addresses; multiple devices can

easily share an SMBus segment

• Space saving 48-pin 6x6mm VFQFPN; minimal board

space

Block Diagram

XIN/CLKIN_25

X2

vSS_EN_tri

^CKPWRGD_PD#

SDATA_3.3

REF

vOE(7:0)#

SCLK_3.3

vSADR

8

SSC

Capable

PLL

Control

Logic

BCLK0

BCLK1

BCLK2

BCLK3

BCLK4

BCLK5

BCLK6

BCLK7

类似零件编号 - 9SQL4958BNDGI8

制造商	部件名	数据表	功能描述
Renesas Technology Corp	9SQL4958	424Kb / 30P	3.3V PCIe® Gen1–5 and UPI Clock Generator Family February 19, 2020
	9SQL4958CNDGI	424Kb / 30P	3.3V PCIe® Gen1–5 and UPI Clock Generator Family February 19, 2020
	9SQL4958CNDGI8	424Kb / 30P	3.3V PCIe® Gen1–5 and UPI Clock Generator Family February 19, 2020

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