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ICS843301I-108 fiches techniques PDF

Integrated Device Technology - 2.5V LVPECL 75MHZ FREQUENCY SYNTHESIZER W/SSC

Numéro de référence ICS843301I-108
Description 2.5V LVPECL 75MHZ FREQUENCY SYNTHESIZER W/SSC
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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ICS843301I-108 fiche technique
PRELIMINARY
FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V LVPECL
75MHZ FREQUENCY SYNTHESIZER W/SSC
ICS843301I-108
GENERAL DESCRIPTION
The ICS843301I-108 is a 75MHz Frequency
ICS Generator and a member of the HiPerClocksTM
HiPerClockS™ family of high perfor mance devices from IDT.
The ICS843301I-108 uses a 20MHz crystal to
synthesize 75MHz output. The device supports
0.5% downspread spread spectrum clocking. The ICS843301I-
108 has excellent <1ps phase jitter performance, over an
integration range of 900kHz - 7.5MHz. The device is packaged
in a small 8-pin TSSOP, making it ideal for use in systems with
limited board space.
FEATURES
One differential 3.3V or 2.5V LVPECL output
Crystal oscillator interface designed for 20MHz,
18pF parallel resonant crystal
Output frequency: 75MHz
Supports SSC, 0.5% downspread
RMS phase jitter @ 75MHz, using a 20MHz crystal
(900kHz - 7.5MHz): 0.73ps (typical)
Full 3.3V or 2.5V operating supply
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
SSC FUNCTION TABLE
www.DataShInepetu4tU.com
SSC
0 (default)
1
Mode
SSC Off
0.5% Downspread
BLOCK DIAGRAM
PIN ASSIGNMENT
XTAL_IN
XTAL_OUT
20MHz
OSC
SSC Pulldown
Phase
Detector
VCO
600MHz
PLL
N Div
÷8
M Div
÷30
VCCA 1
8 VCC
VEE 2
7Q
XTAL_OUT 3
6 nQ
Q
XTAL_IN 4
5 SSC
nQ
ICS843301I-108
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
IDT/ ICS3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER W/SSC 1
ICS843301BGI-108 REV. A OCTOBER 9, 2007

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