PRELIMINARY
Integrated
Circuit
Systems, Inc.
ICS843011C
F
EMTO
C
LOCKS
™ C
RYSTAL
-
TO
-
3.3V LVPECL C
LOCK
G
ENERATOR
F
EATURES
•
One differential 3.3V LVPECL output
•
Crystal oscillator interface designed for 26.5625MHz
18pF parallel resonant crystal
•
Output frequency: 106.25MHz or 100MHz
•
VCO range: 560MHz - 680MHz
•
RMS phase jitter @ 100MHz, using a 25MHz crystal
(637kHz - 10MHz): 0.29ps (typical)
•
3.3V operating supply
•
-40°C to 85°C ambient operating temperature
•
Available in both standard and lead-free RoHS compliant
packages
G
ENERAL
D
ESCRIPTION
The ICS843011C is a Fibre Channel Clock
Generator and a member of the HiPerClocks
TM
HiPerClockS™
family of high performance devices from ICS.
The ICS843011C uses a 26.5625MHz crystal to
synthesize 106.25MHz or a 25MHz crystal to
synthesize 100MHz. The ICS843011C has excellent <1ps
phase jitter performance, over the 637kHz – 10MHz
integration range. The ICS843011C is packaged in a small
8-pin TSSOP, making it ideal for use in systems with limit-
ed board space.
IC
S
F
REQUENCY
T
ABLE
Crystal (MHz)
26.5625
25
Output Frequency (MHz)
106.25
100
B
LOCK
D
IAGRAM
XTAL_IN
P
IN
A
SSIGNMENT
Phase
Detector
VCO
637.5MHz w/
26.5625MHz Ref.
OSC
XTAL_OUT
÷6
Q
nQ
V
CCA
V
EE
XTAL_OUT
XTAL_IN
1
2
3
4
8
7
6
5
V
CC
Q
nQ
nc
M = ÷24 (fixed)
ICS843011C
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.
843011CG
www.icst.com/products/hiperclocks.html
REV. A JANUARY 25, 2006
1
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
