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840031AMILF

Description
IC clock generator 8-soic
Categorysemiconductor    Analog mixed-signal IC   
File Size358KB,10 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Environmental Compliance  
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840031AMILF Overview

IC clock generator 8-soic

DATA SHEET
ICS840031I
Integrated
ICS840031I
FEMTOCLOCKS™ CRYSTAL-TO-LVCMOS/LVTTL
Circuit
F
EMTO
C
LOCKS
™ C
RYSTAL
-
TO
-
Systems, Inc.
CLOCK GENERATOR
LVCMOS/LVTTL C
LOCK
G
ENERATOR
G
ENERAL
D
ESCRIPTION
The ICS840031I is an IEEE 1394b Clock
Generator and a member of the HiPerClocks
TM
HiPerClockS™
family of high performance devices from ICS.
The ICS840031I uses a 24.576MHz crystal to
synthesize 98.304MHz. The ICS840031I has
excellent phase jitter performance, from 12KHz – 20MHz
integration range. The ICS840031I is packaged in a small
8-pin SOIC, making it ideal for use in systems with limited
board space.
F
EATURES
(1) LVCMOS/LVTTL output
Crystal oscillator interface designed for a 24.576MHz,
18pF parallel resonant crystal
Output frequency: 98.304MHz (typical)
VCO range: 490MHz to 640MHz
RMS phase jitter @ 98.304MHz, using a 24.576MHz crystal
(12KHz - 20MHz): 0.75ps (typical)
RMS phase noise at 98.304MHz (typical)
Offset
Noise Power
100Hz .............. -103.3 dBc/Hz
1KHz .............. -126.2 dBc/Hz
10KHz .............. -134.2 dBc/Hz
100KHz .............. -132.9 dBc/Hz
3.3V core/1.8V output operating supply
Lead-Free fully RoHS compliant
-40°C to 85°C ambient operating temperature
ICS
F
REQUENCY
T
ABLE
Inputs
Crystal Frequency (MHz)
24.576
Output Frequency
(MHz)
98.304
B
LOCK
D
IAGRAM
PLL_SEL
(Pullup)
P
IN
A
SSIGNMENT
0
V
DD
XTAL_OUT
XTAL_IN
V
DDA
1
2
3
4
8
7
6
5
V
DDO
Q0
GND
PLL_SEL
XTAL_IN
Q0
OSC
XTAL_OUT
Phase
Detector
VCO
589.824MHz w/
24.576MHz Ref.
÷6
1
ICS840031I
8-Lead SOIC
3.90mm x 4.90mm x 1.37mm package body
M Package
Top View
M = ÷24
(fixed)
840031AMI
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 24, 2005
IDT™ / ICS™
FEMTOCLOCKS™ CRYSTAL-TO-LVCMOS/LVTTL CLOCK
1
GENERATOR
1
ICS840031I

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