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Numéro de référence | ICS843023 | ||
Description | 3.3V 250MHZ LVPECL CLOCK GENERATOR | ||
Fabricant | Integrated Circuit Systems | ||
Logo | |||
1 Page
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843023www.DataSheet4U.com
FEMTOCLOCKS™CRYSTAL-TO-
3.3V, 250MHZ LVPECL CLOCK GENERATOR
GENERAL DESCRIPTION
ICS
The ICS843023 is a Gigabit Ethernet Clock
Generator and a member of the HiPerClocksTM
HiPerClockS™ family of high performance devices from ICS. The
ICS843023 uses a 25MHz crystal to synthesize
250MHz.The ICS843023 has excellent phase jitter
performance, over the 1.875MHz – 20MHz integration range.
The ICS843023 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
• Maximum output frequency: 250MHz, using a 25MHz crystal
• VCO range: 490MHz - 640MHz
• RMS phase jitter @ 250MHz, using a 25MHz crystal
(12KHz - 20MHz): 0.33ps (typical)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
BLOCK DIAGRAM
OE
XTAL_IN
XTAL_OUT
25MHz
OSC
Phase
Detector
VCO
÷20
(fixed)
÷2
(fixed)
PIN ASSIGNMENT
VCC 1
8 Q0
XTAL_OUT 2
7 nQ0
XTAL_IN 3
6 VCC
Q0
VEE 4
5 OE
nQ0
ICS843023
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.
843023AG
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 30, 2004
1
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Pages | Pages 10 | ||
Télécharger | [ ICS843023 ] |
No | Description détaillée | Fabricant |
ICS843020-01 | FEMTOCLOCKS 680MHZ CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER | Integrated Circuit Systems |
ICS843021 | FEMTOCLOCKS CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR | Integrated Circuit Systems |
ICS843021I-01 | FEMTOCLOCKS CRYSTAL-TO-3.3V 2.5V LVPECL CLOCK GENERATOR | Integrated Device Technology |
ICS843022 | FEMTOCLOCKS CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR | Integrated Circuit Systems |
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