Micro Networks
M831 Series
An Integrated Circuit Systems Company
Preliminary Specifications
M831 Series
9.953 Gbit OC-192 Clock & Data Recovery Receiver Module
DESCRIPTION
The M831 Series is specifically designed to
regenerate the spectral component from an in-
coming NRZ data stream and output a low-jitter
clock and retimed complementary data.
The module utilizes a phase-lock loop architecture
incorporating a high-stability, low noise SAW VCO
to provide extremely low jitter clock and data
outputs. The incoming data is frequency doubled to
recover the clock component. The clock signal is
then filtered by a microwave band pass filter to
remove wide band noise and spurious signals. This
signal is further filtered using the wide band SAW
VCO based PLL to minimize the noise close to the
FEATURES
carrier. The low jitter clock is then used to retime
the data and serves as the module’s clock output.
The module provides user controlled clock phase
shifter and output data crossover adjustments to
optimize system performance.
Superior SAW VCO-based PLL jitter
performance
9.5 ps peak-to-peak jitter
0.9 Vp-p complementary data outputs
1 UI externally adjustable clock phase
200 mVp-p input sensitivity
PLL lock-in range and loop transfer characteristics
are optimized for minimal jitter in accordance with
ITU and Bellcore standards for SONET/SDH
systems.
Optional adjustable bias at data input to
decision circuit
Externally adjustable decision threshold
ABSOLUTE MAX RATINGS
APPLICATIONS
Operating Temp. Range (Case) ............................. 0°C to +70°C
Storage Temp. Range (Ambient) ..................... -40°C to +125°C
Power Supply Voltage
SONET OC-192 and SDH STM
Receiver Clock and Data Recovery
Applications
Vcc: ......................................................+5.25Vdc
Vee: ...................................................... -5.25Vdc
Ref Voltage
..................................................... +0.3V to -1.6V
Phase Shift Control .............................................. -1.0V to +18V
ISO 9001
Registered
Micro Networks
324 Clark Street
Worcester, MA 01606
tel: 508-852-5400
fax: 508-852-8456
www.micronetworks.com