M830 Datasheet, PDF (1/6 Pages) Integrated Circuit Systems – 12.249Gb/s OC-192 Clock & Data Recovery Transmitter Module

Micro Networks
An Integrated Circuit Systems Company
M830 Series
Preliminary Specifications
M830 Series
12.249Gb/s OC-192 Clock & Data Recovery Transmitter Module
FEATURES
Superior PLL-based jitter performance
8psec p-p jitter
0.9Vp-p complementary data outputs
1 Ul externally adjustable clock phase
200mVp-p input sensitivity
Optional adjustable bias @ data input to
decision circuit
Externally adjustable decision threshold
DESCRIPTION
The M830 Series CDR module is specifically
designed to regenerate the spectral clock
component from an incoming NRZ data stream,
incorporating forward error correction, and output a
low-jitter clock and retimed complementary data.
The module utilizes a phase-locked 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
signal. This signal is further filtered using the
narrow band SAW VCO based PLL to minimize the
noise close to the 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.
PLL lock-in range and loop transfer characteristics
are optimized for minimal jitter in accordance with
ITU and Bellcore standards for SONET/SDH
systems.
APPLICATIONS
SONET OC-192 and SDH STM Physical
Layer and Clock and Data Recovery
Applications Incorporating Forward
Error Correction
ABSOLUTE MAX RATINGS
Operating Temp. Range (Case) ............................. 0°C to +70°C
Storage Temp. Range (Ambient) ..................... -40°C to +125°C
Power Supply Voltage
Vcc: ...................................................... +5.25Vdc
Vee: ...................................................... -5.25Vdc
Ref Voltage ....................................................... +0.3 to -1.6V
Phase Shift Control .....................................................0 to +15V
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