M830/831 Rev 2.0
Revised 15May2003
I n t e g r a t e d C i r c u i t S y s t e m s , I n c .
C o m m u n i c a t i o n s M o d u l e s
w w w. i c s t . c o m
t e l ( 5 0 8 ) 8 5 2 - 5 4 0 0
10 G
BIT
OC-192 C
LOCK
& D
ATA
R
ECOVERY
M
ODULE
Integrated
Circuit
Systems, Inc.
P r o d u c t B r i e f
M830/831
G
ENERAL
D
ESCRIPTION
The M830/831 Voltage Controlled Clock & Data
Recovery Module recovers the spectral component
from an incoming NRZ data stream and outputs a
low-jitter clock and retimed complementary data.
The Phase Locked Loop (PLL) architecture incorpo-
rates a SAW (Surface Acoustic Wave) based Voltage
Controlled Oscillator (VCSO) to provide extremely low
jitter clock and data outputs. The M830 differs from
the M831 in that it has a narrower PLL bandwidth,
enabling it to be used in transmitter applications when
paired with the M831 as the receiver.
F
EATURES
Superior VCSO-based PLL jitter performance
9.5ps peak-to-peak clock output jitter, typical
0.9V peak-to-peak complementary data output
1 UI externally adjustable clock phase
200mV peak-to-peak input sensitivity
Externally adjustable decision threshold
Designed for SONET OC-192 and SDH STM-64
physical layer clock and data recovery applications
+5V and -5V power supplies
Easy to connect 1.89 x 2.49 inch SMA package
P
IN
A
SSIGNMENT
(1.89 x 2.49 inch SMA)
B
LOCK
D
IAGRAM
Example Input/Output Frequency Combinations
Operating
Data Rate
(Gb/sec)
Clock Output Freq
1
(GHz)
OC-192
1. Consult factory for frequency availability
Applications
9.953
9.953
OC-192
10.312
10.312
10.664
10.664
10.709
10.709
12.249
12.249
M830/831
DA
T
A
OUT
DA
T
A
OUT
CL
K
O
U
T
DATA IN
-5V
LCK
Vth
DATA IN
DATA OUT DATA OUT CLK OUT
-5V
+5V
Vph
Bottom
Top
Integrated Circuit Systems
M830/831
DATA IN
CLK OUT
Vph
Phase
Control
2x
Frequency
Multiplier
Amp
DATA OUT
Phase Detector
Amp
Amp
Op-
Amp
DATA OUT
(Inverted)
Bandpass Filter
Vth
Threshold
Control
Pwr
Div
SAW Delay Line
Pwr
Div
2x
Frequency
Multiplier
4x
(or 5x)
Frequency
Multiplier
Pwr
Div
Pwr
Div
Bandpass Filter
Amp
Clock
Phase
Shifter
GaAs
Decision
Circuit
9.953 - 10.709GHz
V C S O
CLOCK RECOVERY
(or 12.249GHz)
DATA RETIMING
P L L
M830/831 10 Gbit OC-192 Clock & Data Recovery Module
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