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PDF ICS840001-32 Data sheet ( Hoja de datos )
| Número de pieza | ICS840001-32 | |
| Descripción | CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ICS840001-32 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS840001-32
FEMTOCLOCKS™ CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS840001-32 is a two output LVCMOS/
ICS LVTTL Synthesizer and is a member of the
HiPerClockS™ HiPerClocksTM family of high perfor mance
devices from ICS. The device uses a 40MHz
crystal to provide a 40MHz reference clock
output and to synthesize a 100MHz or 106.25MHz
output. The ICS840001-32 has excellent <1ps phase
jitter performance over the 637kHz – 5MHz integration
www.DataSheerta4Ung.ceo.mThe ICS840001-32 is packaged in a 3mm x 3mm
16-pin VFQFN, making it ideal for use on space con-
strained boards.
FEATURES
• One LVCMOS/LVTTL output, 15Ω typical output
impedence and one reference clock output
• 40MHz, 10pF parallel resonant crystal
• Output frequencies: 100MHz or 106.25MHz
• RMS phase jitter @ 106.25MHz, using a 40MHz crystal
(637kHz - 5MHz): 0.78ps (typical)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
• Availabe in both standard and lead-free RoHS-compliant
packages
FUNCTION TABLE
Inputs
Crystal Frequency
(MHz)
40
40
SEL Input
0
1
Outputs
Q Output
REF_OUT
Frequency (MHz) Frequency (MHz)
100 40
106.25
40
BLOCK DIAGRAM
PIN ASSIGNMENT
XTAL_IN
XTAL_OUT
OSC
SEL (Pullup)
Synthesizer
40MHz
REF_OUT
100MHz or
106.25MHz
Q
16 15 14 13
VDD 1
12 Q
XTAL_OUT 2
1 1 VDDO_Q
XTAL_IN 3
10 VDD
SEL 4
9 REF_OUT
5678
ICS840001-32
16-Lead VFQFN
3mm x 3mm x 0.95 package body
K 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.
840001CK-32
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 23, 2005
1
1 page  
www.DataSheet4U.com
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS840001-32
FEMTOCLOCKS™ CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
-200
10
TYPICAL PHASE NOISE AT 106.25MHZ
Fibre Channel Filter
➤
Raw Phase Noise Data
106.25MHz
RMS Phase Jitter (Random)
637kHz to 5MHz = 0.78ps (typical)
Phase Noise Result by adding
Fibre Channel Filter to raw data
100
1k
10k
100k
1M
OFFSET FREQUENCY (HZ)
840001CK-32
www.icst.com/products/hiperclocks.html
5
REV. A NOVEMBER 23, 2005
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ICS840001-32.PDF ] | |
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