ICS9FG110 [ICSI]

Programmable FTG for Differential PCI-Express; 差分PCI - Express的可编程FTG


型号：	ICS9FG110
厂家：	INTEGRATED CIRCUIT SOLUTION INC
描述：	Programmable FTG for Differential PCI-Express 差分PCI - Express的可编程FTG PC
文件：	总1页 (文件大小：15K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Integrated

Circuit

Systems, Inc.

ICS9FG110

Advance Information

Programmable FTG for Differential PCI-Express

Recommended Application:

Pin Configuration

Frequency Timing Generator for Differential PCI-Express clocks

VDDA

REFIN 1

SDATA 2

SCLK 3

Features:

27 GNDA

•

Generates common PCI-Express frequencies from

reference input clock (33.33MHz)

IREF

*PD#

MODE_SEL**

PCIEXT6

PCIEXC6

VDDPCIEX

•

7 - 0.7V current-mode differential output pairs

PCIEXT0 5

PCIEXC0 6

Three spread spectrum modes: spread tracking mode, 0

to -0.5 downspread and +/-0.25% centerspread

VDDPCIEX

•

Support for M/N programming

Programmable spread percentage

Programmable output divider

SMBus address is DC/DD

GND 8

PCIEXT1 9

PCIEXC1 10

PCIEXT2 11

PCIEXC2 12

PCIEXT3 13

PCIEXC3 14

21 GND

PCIEXT5

PCIEXC5

PCIEXT4

PCIEXC4

VDDPCIEX

Key Specifications:

•

Output cycle-to-cycle jitter < 85 ps

Output to output skew < 85 ps

15 GND

+/-300 ppm frequency accuracy on output clocks

28-SSOP/TSSOP

* This pin have 120K pull-up to VDD

** This pin have 120K pull-down to GND

Power Groups

Functionality Table

MODE_SEL

PCIEX Freq

100

Spread Spectrum %

Spread Tracking Input

+/- 0.25 Center Spread

Pin Number

Description

VDD

GND

100

Analog pow er & GND for CPU Core

Pow er & GND f or PCI Ex pres s Cloc k

Outputs

7, 22

8, 15, 21

Block Diagram

REFIN

Programmable

Frequency

Dividers

Spread

PLL1

PCIEXC (6:0)

PCIEXT (6:0)

SCLK

SDATA

Control

Logic

MODE_SEL

I REF

0872—12/11/03

ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.

ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.