Integrated
Circuit
Systems, Inc.
ICS843-75
75MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
F
EATURES
•
One LVCMOS/LVTTL output, 15Ω output impedence
One LVPECL output pair
•
Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
•
Output frequency: 75MHz
•
Random jitter: 3.07ps (maximum)
•
Deterministic jitter: 0.13ps (maximum)
•
3.3V operating supply
•
0°C to 70°C ambient operating temperature
•
Available in both standard and lead-free RoHS-compliant
packages
G
ENERAL
D
ESCRIPTION
The ICS843-75 is a SAS/SATA Dual Output
Oscillator and a member of the HiPerClocks
TM
HiPerClockS™
family of high performance devices from ICS.
The ICS843-75 uses a 25MHz crystal to
s y n t h e s i ze 7 5 M H z . T h e I C S 8 4 3 - 7 5 h a s
excellent jitter performance. The ICS843-75 is packaged
in a small 8-pin TSSOP, making it ideal for use in systems
with limited board space.
IC
S
B
LOCK
D
IAGRAM
LVCMOS
75MHz
25MHz
P
IN
A
SSIGNMENT
Q0
V
CC
XTAL_IN
XTAL_OUT
V
EE
1
2
3
4
8
7
6
5
Q1
nQ1
V
CCO
Q0
XTAL_IN
Clock
Synthesizer
LVPECL
75MHz
XTAL_OUT
ICS843-75
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
Q1
nQ1
ICS843-75
8-Lead SOIC
3.90mm x 4.92mm x 1.37mm body package
M Package
Top View
843AG-75
www.icst.com/products/hiperclocks.html
1
REV. A JANUARY 9, 2006
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
