843004AGI-04
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 15, 2006
1
Integrated
Circuit
Systems, Inc.
ICS843004I-04
F
EMTO
C
LOCKS
TM C
RYSTAL
/LVCMOS-
TO
-
3.3V LVPECL F
REQUENCY
S
YNTHESIZER
0
1
Phase
Detector
VCO
M = 32
OSC
4
1
0
1
0
1
0
1
0
1
G
ENERAL
D
ESCRIPTION
The ICS843004I-04 is a 4 output LVPECL
Synthesizer optimized to generate clock
frequencies for a variety of high performance
a p p l i c a t i o n s a n d i s a m e m b e r o f t h e
HiPerClocks
TM
family of high perfor mance
clock solutions from ICS. This device can select its input
reference clock from either a crystal input or a single-
ended clock signal. It can be configured to generate 4
outputs with individually selectable divide-by-one or
divide-by-four function via the 4 frequency select pins
( F _ S E L [ 3 : 0 ] ) . T h e I C S 8 4 3 0 0 4 I - 0 4 u s e s I C S ' 3
r d
generation low phase noise VCO technology and can
achieve 1ps or lower typical r ms phase jitter. This
ensures that it will easily meet clocking requirements
for SDH (STM-1/STM-4/STM-16) and SONET (OC-3/
OC12/OC-48). This device is suitable for multi-rate and
multiple por t line card applications. The ICS843004I-04
is conveniently packaged in a small 24-pin TSSOP
package.
F
EATURES
Four LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
Supports the following applications: SONET/SDH, SATA,
or 10Gb Ethernet
Output frequency range: 140MHz - 170MHz,
560MHz - 680MHz
VCO range: 560MHz - 680MHz
Crystal oscillator and CLK range: 17.5MHz - 21.25MHz
RMS phase jitter @ 622.08MHz output, using a 19.44MHz
crystal (12kHz - 20MHz): 0.82ps (typical)
RMS phase jitter @ 156.25MHz output, using a 19.53125MHz
crystal (1.875MHz - 20MHz): 0.57ps (typical)
RMS phase jitter @ 155.52MHz output, using a 19.44MHz
crystal (12kHz - 20MHz): 0.94ps (typical)
Full 3.3V supply mode
-40C to 85C ambient operating temperature
Available in both standard and lead-free RoHS compliant
packages
HiPerClockSTM
ICS
P
IN
A
SSIGNMENT
ICS843004I-04
24-Lead TSSOP
4.40mm x 7.8mm x 0.92mm
package body
G Package
Top View
nQ1
Q1
V
CC
o
Q0
nQ0
MR
F_SEL3
nc
V
CCA
F_SEL0
V
CC
F_SEL1
1
2
3
4
5
6
7
8
9
10
11
12
nQ2
Q2
V
CCO
Q3
nQ3
V
EE
F_SEL2
INPUT_SEL
CLK
V
EE
XTAL_IN
XTAL_OUT
24
23
22
21
20
19
18
17
16
15
14
13
B
LOCK
D
IAGRAM
CLK
INPUT_SEL
MR
F_SEL0
F_SEL1
F_SEL2
F_SEL3
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Pulldown
Pulldown
Pulldown
Pullup
Pullup
Pullup
Pullup
XTAL_IN
XTAL_OUT
843004AGI-04
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 15, 2006
3
Integrated
Circuit
Systems, Inc.
ICS843004I-04
F
EMTO
C
LOCKS
TM C
RYSTAL
/LVCMOS-
TO
-
3.3V LVPECL F
REQUENCY
S
YNTHESIZER
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions be-
yond those listed in the
DC Characteristics
or
AC Character-
istics
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
CC
= V
CCA
= V
CCO
= 3.3V5%, TA = -40C
TO
85C
T
ABLE
4B. LVCMOS / LVTTL DC C
HARACTERISTICS
,
V
CC
= V
CCA
= V
CCO
= 3.3V5%, TA = -40C
TO
85C
T
ABLE
4C. LVPECL DC C
HARACTERISTICS
,
V
CC
= V
CCA
= V
CCO
= 3.3V5%, TA = -40C
TO
85C
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A
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
CC
4.6V
Inputs, V
I
-0.5V to V
CC
+ 0.5V
Outputs, I
O
Continuous Current
50mA
Surge Current
100mA
Package Thermal Impedance,
JA
70C/W (0 mps)
Storage Temperature, T
STG
-65C to 150C
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