9SQL4954BNLGI

9SQL4954BNLGI Datasheet


9SQL4954

Part Datasheet
9SQL4954BNLGI 9SQL4954BNLGI 9SQL4954BNLGI (pdf)
Related Parts Information
9SQL4954BNLGI8 9SQL4954BNLGI8 9SQL4954BNLGI8
PDF Datasheet Preview
4-output CK420BQ Derivative
9SQL4954

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.

Recommended Application

PCIe Gen1, Gen2, Gen3, Gen4 Server Clock

Output Features
• 4 -100MHz Low-power HCSL LP-HCSL CPU/SRC pairs
• Integrated terminations for Zout
• 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

DATASHEET

Features/Benefits
• Direct connection to transmission lines saves 16
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%, or 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

Block Diagram
vOE 3:0 #

XIN/CLKIN_25
vSADR vSS_EN_tri

SDATA_3.3

SCLK_3.3

Control Logic

SSC Capable

BCLK3 BCLK2 BCLK1 BCLK0
9SQL4954 NOVEMBER 4, 2016
2016 Integrated Device Technology, Inc.
9SQL4954 DATASHEET

Pin Configuration
Ordering Information

Part / Order Number Shipping Packaging
9SQL4954BNLGI

Trays
9SQL4954BNLGI8

Tape and Reel

Package 32-pin VFQFPN 32-pin VFQFPN

Temperature -40 to +85° C -40 to +85° C

Issue Date 10/1/2015 3/7/2016
3/25/2016

Intiator RDW
Page # Various

Various

Updated block diagram

Minor corrections to front page text.
1,4,
5/3/2016 RDW Removed Device name from "Termination" table under Test Loads various

Updated SMBus

Updated electrical tables per PCIe Base Spec 4.0v7 of Oct. 2016
to add PCIe Gen4 CC and PCIe Gen2-3 IR to the data sheet.

Separated PCIe and QPI/UPI, SAS electrical tables

Updated front page text for clarity

Added note about hardware latching Spread Spectrum versus

E 10/28/2016 RDW software control of on/off to Byte

Various

Updated block diagram for formatting, and test loads

Changed name of DIF outputs to BCLK to better indicate there use
in servers.

Added bytes 10-19 to the SMBus register set.

Removed IDT Crystal Part numbers from DS.

Updated test loads diagrams
11/4/2016 RDW Added typical Tdrive_PD# value

Slight adjustments to max REF slew rates
4, 6, 10, 14

Added default impedance settings to Byte 12 and 13
9SQL4954 DATASHEET

NOVEMBER 4, 2016
4-OUTPUT CK420BQ DERIVATIVE

Corporate Headquarters 6024 Silver Creek Valley Road San Jose, CA 95138 USA

Sales 1-800-345-7015 or 408-284-8200 Fax 408-284-2775

Tech Support

DISCLAIMER Integrated Device Technology, Inc. IDT and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties.

IDT’s products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Product specification subject to change without notice. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners.

Copyright 2016 Integrated Device Technology, Inc.. All rights reserved.
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Datasheet ID: 9SQL4954BNLGI 636915