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PDF ICS840-125 Data sheet ( Hoja de datos )
| Número de pieza | ICS840-125 | |
| Descripción | LVCMOS/LVTTL OSCILLATOR REPLACEMENT | |
| Fabricantes | Integrated Circuit Systems | |
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Hay una vista previa y un enlace de descarga de ICS840-125 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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Integrated
Circuit
Systems, Inc.
ICS840-125
125MHZ, LVCMOS/LVTTL
OSCILLATOR REPLACEMENT
GENERAL DESCRIPTION
The ICS840-125 is a Gigabit Ethernet Oscillator
ICS Replacement and a member of the
HiPerClockS™ HiPerClocksTM family of high perfor mance
devices from ICS. The ICS840-125 uses a
25MHz crystal to synthesize 125MHz. The
ICS840-125 has excellent jitter performance. The
ICS840-125 is packaged in a small 8-pin TSSOP, making
it ideal for use in systems with limited board space.
www.DataSheet4U.com
FEATURES
• One LVCMOS/LVTTL output, 15Ω output impedance
• Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
• Output frequency: 125MHz
• Random jitter: 3.7ps (typical)
• Deterministic jitter: 0.1ps (typical)
• 3.3V operating supply
• 0°C to 70°C ambient operating temperature
• Available in both standard and lead-free RoHS-compliant
packages
BLOCK DIAGRAM
OE Pullup
25MHz
XTAL_IN
XTAL_OUT
Clock
Synthesizer
125MHz
Q
PIN ASSIGNMENT
VDD
XTAL_OUT
XTAL_IN
OE
1
2
3
4
8 nc
7Q
6 VDDO
5 GND
ICS840-125
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
ICS840-125
8-Lead SOIC
3.90mm x 4.92mm x 1.37mm body package
M Package
Top View
840AG-125
www.icst.com/products/hiperclocks.html
1
REV. A FEBRUARY 3, 2006
1 page  
Integrated
Circuit
Systems, Inc.
ICS840-125
125MHZ, LVCMOS/LVTTL
OSCILLATOR REPLACEMENT
PARAMETER MEASUREMENT INFORMATION
1.65V ± 0.15V
VDD,
www.DataSheet4UV.cDoDOm
LVCMOS
GND
-1.65V ± 0.15V
SCOPE
Qx
Q
t PW
V
DDO
2
t
PERIOD
odc = t PW x 100%
t PERIOD
3.3V OUTPUT LOAD AC TEST CIRCUIT
OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD
20%
Clock
Outputs
80%
tR
80%
tF
20%
OUTPUT RISE/FALL TIME
840AG-125
www.icst.com/products/hiperclocks.html
5
REV. A FEBRUARY 3, 2006
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ICS840-125.PDF ] | |
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