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PDF ICS843022 Data sheet ( Hoja de datos )

Número de pieza ICS843022
Descripción FEMTOCLOCKS CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR
Fabricantes Integrated Circuit Systems 
Logotipo Integrated Circuit Systems Logotipo



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No Preview Available ! ICS843022 Hoja de datos, Descripción, Manual

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843022www.DataSheet4U.com
FEMTOCLOCKS™CRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
GENERAL DESCRIPTION
ICS
The ICS843022 is a Fibre Channel Clock Generator
and a member of the HiPerClocksTM family of high
HiPerClockS™ performance devices from ICS. The ICS843022
uses a 25MHz crystal to synthesize 125MHz or
62.5MHz. The ICS843022 has excellent phase
jitter performance, over the 12KHz – 20MHz integration range.
The ICS843022 is packaged in a small 8-pin TSSOP, making
it ideal for use in systems with limited board space.
FEATURES
1 differential 3.3V LVPECL output
Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
Output frequencies: 125MHz or 62.5MHz (selectable)
RMS phase jitter @ 125MHz, using a 25MHz crystal
(12KHz - 20MHz): 0.62ps (typical)
RMS phase noise at 125MHz (typical)
Offset
Noise Power
100Hz ............... -94.6 dBc/Hz
1KHz .............. -122.8 dBc/Hz
10KHz .............. -132.2 dBc/Hz
100KHz .............. -132.0 dBc/Hz
3.3V operating supply
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
FUNCTION TABLE
Inputs
FREQ_SEL
0
1
Output Frequencies
(with a 25MHz crystal)
125MHz
62.5MHz
BLOCK DIAGRAM
XTAL_IN
XTAL_OUT
OSC
Output
Divider
FREQ_SEL
PIN ASSIGNMENT
nQ0
Q0
VCCA
VEE
XTAL_OUT
XTAL_IN
1
2
3
4
8 VCC
7 Q0
6 nQ0
5 FREQ_SEL
ICS843022
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 prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
843022AG
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 30, 2004
1

1 page




ICS843022 pdf
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843022www.DataSheet4U.com
FEMTOCLOCKS™CRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
TYPICAL PHASE NOISE AT 125MHZ
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
100
Fibre Channel Filter
125MHz
RMS Phase Jitter (Random)
12KHz to 20MHz = 0.62ps (typical)
Raw Phase Noise Data
Phase Noise Result by adding
Fibre Channel Filter to raw data
1k 10k 100k 1M
OFFSET FREQUENCY (HZ)
10M 100M
843022AG
www.icst.com/products/hiperclocks.html
5
REV. A NOVEMBER 30, 2004

5 Page





ICS843022 arduino
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843022www.DataSheet4U.com
FEMTOCLOCKS™CRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
RELIABILITY INFORMATION
TABLE 7. θJAVS. AIR FLOW TABLE FOR 8 LEAD TSSOP
θJA by Velocity (Meters per Second)
Multi-Layer PCB, JEDEC Standard Test Boards
0
101.7°C/W
1
90.5°C/W
2.5
89.8°C/W
TRANSISTOR COUNT
The transistor count for ICS843022 is: 1928
843022AG
www.icst.com/products/hiperclocks.html
11
REV. A NOVEMBER 30, 2004

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