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841S04CGILF

Description
clock generators & support products pcie clock generator
Categorysemiconductor    Other integrated circuit (IC)   
File Size2MB,17 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance
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841S04CGILF Overview

clock generators & support products pcie clock generator

841S04CGILF Parametric

Parameter NameAttribute value
ManufactureIDT (Integrated Device Technology)
Product CategoryClock Generators & Support Products
RoHSYes
TypeClock Generators
Max Input Freq25 MHz
Max Output Freq100 MHz
Number of Outputs4
Duty Cycle - Max52.5 %
Operating Supply Voltage3.3 V
Operating Supply Curre80 mA
Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT
Package / CaseTSSOP-24
Minimum Operating Temperature- 40 C
Output TypeHCSL
PackagingTube
Factory Pack Quantity62
PCI Express
TM
Clock Generator
ICS841S04I
DATA SHEET
General Description
The ICS841S04I is a PLL-based clock generator specifically
designed for PCI_Express™ Clock Generation applications. This
device generates a 100MHz HCSL clock. The device offers a HCSL
(Host Clock Signal Level) clock output from a clock input reference of
25MHz. The input reference may be derived from an external source
or by the addition of a 25MHz crystal to the on-chip crystal oscillator.
An external reference may be applied to the XTAL_IN pin with the
XTAL_OUT pin left floating.
The device offers spread spectrum clock output for reduced EMI
applications. An I
2
C bus interface is used to enable or disable spread
spectrum operation as well as select either a down spread value of
-0.35% or -0.5%.
Features
Four 0.7V current mode differential HCSL output pairs
Crystal oscillator interface: 25MHz
Output frequency: 100MHz
RMS period jitter: 3ps (maximum)
Output skew: 70ps (maximum)
Cycle-to-cycle jitter: 35ps (maximum)
I
2
C support with readback capabilities up to 400kHz
Spread Spectrum for electromagnetic interference (EMI) reduction
3.3V operating supply mode
-40°C to 85°C ambient operating temperature
Available in standard (RoHS 5) and lead-free (RoHS 6) packages
Block Diagram
25MHz
Pin Assignment
4
XTAL_IN
OSC
XTAL_OUT
SDATA
Pullup
SCLK
Pullup
PLL
Divider
Network
SRCT[1:4]
SRCC[1:4]
4
I
2
C
Logic
4
IREF
SRCT3
SRCC3
V
SS
V
DD
SRCT2
SRCC2
SRCT1
SRCC1
V
SS
V
DD
V
SS
IREF
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SRCC4
SRCT4
V
DD
SDATA
SCLK
XTAL_OUT
XTAL_IN
V
DD
V
SS
nc
V
DDA
V
SS
ICS841S04I
24-Lead TSSOP
4.4mm x 7.8mm x 0.925mm package body
G Package
Top View
ICS841S04CGI REVISION A FEBRUARY 1, 2011
1
©2011 Integrated Device Technology, Inc.

841S04CGILF Related Products

841S04CGILF
Description clock generators & support products pcie clock generator
Manufacture IDT (Integrated Device Technology)
Product Category Clock Generators & Support Products
RoHS Yes
Type Clock Generators
Max Input Freq 25 MHz
Max Output Freq 100 MHz
Number of Outputs 4
Duty Cycle - Max 52.5 %
Operating Supply Voltage 3.3 V
Operating Supply Curre 80 mA
Maximum Operating Temperature + 85 C
Mounting Style SMD/SMT
Package / Case TSSOP-24
Minimum Operating Temperature - 40 C
Output Type HCSL
Packaging Tube
Factory Pack Quantity 62
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