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874003AG-04

Description
PCI EXPRESS™ Jitter Attenuator
File Size201KB,16 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
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874003AG-04 Overview

PCI EXPRESS™ Jitter Attenuator

PCI EXPRESS™ Jitter Attenuator
PRODUCT DISCONTINUATION NOTICE - LAST TIME BUY EXPIRES JANUARY 27, 2015
ICS874003-04
DATA SHEET
General Description
The ICS874003-04 is a high performance Differential-to-LVDS Jitter
Attenuator designed for use in PCI Express systems. In some PCI
Express systems, such as those found in desktop PCs, the PCI
Express
TM
clocks are generated from a low bandwidth, high phase
noise PLL frequency synthesizer. In these systems, a jitter
attenuator may be required to attenuate high frequency random and
deterministic jitter components from the PLL synthesizer and from
the system board. The ICS874003-04 has a bandwidth of 6.8MHz.
The 6.8MHz provides a high bandwidth that can easily track
triangular spread profiles, while providing jitter attenuation.
The ICS874003-04 uses IDT’s 3
rd
Generation FemtoClock™ PLL
technology to achieve the lowest possible phase noise. The device is
packaged in a 20 Lead TSSOP package, making it ideal for use in
space constrained applications such as PCI Express add-in cards.
Features
Three differential LVDS output pairs
One differential clock input
CLK/nCLK can accept the following differential input levels:
LVPECL, LVDS, LVHSTL, HCSL, SSTL
Input frequency range: 98MHz to 128MHz
Output frequency range: 98MHz to 320MHz
VCO range: 490MHz - 640MHz
Supports PCI-Express Spread-Spectrum Clocking
High PLL bandwidth allows for better input tracking
Full 3.3V supply mode
0°C to 70°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
Use replacement part: 874003BG-05LF
Pin Assignment
F_SEL[2:0] Function Table
Inputs
F_SEL2
0
1
0
1
0
1
0
1
F_SEL1
0
0
1
1
0
0
1
1
F_SEL0
0
0
0
0
1
1
1
1
Outputs
QA[0:1], nQA[0:1]
÷2
÷5
÷4
÷2
÷2
÷5
÷4
÷4
QB, nQB0
÷2
÷2
÷2
÷4
÷5
÷4
÷5
÷4
QA1
V
DDO
QA0
nQA0
MR
F_SEL0
nc
V
DDA
F_SEL1
V
DD
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
nQA1
V
DDO
QB0
nQB0
F_SEL2
OEB
GND
nCLK
CLK
OEA
ICS874003-04
20-Lead TSSOP
6.5mm x 4.4mm x 0.925mm package body
G Package
Top View
ICS874003AG-04 REVISION B JANUARY 28, 2014
1
©2014 Integrated Device Technology, Inc.

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