TRCV012G5 Datasheet, PDF (1/28 Pages) Agere Systems – TRCV012G5 (2.5 Gbits/s) and TRCV012G7 (2.5 Gbits/s and 2.7 Gbits/s) Limiting Amplifier, Clock Recovery, 1:16 Data Demultiplexer

Preliminary Data Sheet
August 2000
TRCV012G5 (2.5 Gbits/s) and TRCV012G7 (2.5 Gbits/s and 2.7 Gbits/s)
Limiting Amplifier, Clock Recovery, 1:16 Data Demultiplexer
Features
s TRCV012G5 supports OC-48/STM-16 data rate
s TRCV012G7 supports:
— OC-48/STM-16 data rate
— RS (255, 239) forward error correction (FEC)
OC-48/STM-16 data rate
s Fully-integrated limiting amplifier, clock recovery,
1:16 data demultiplexer
s No reference clock required for CDR
s 2.5 Gbits/s data output and 2.5 GHz recovered
clock output available for wavelength division
multiplex (WDM) or regenerator applications
s Programmable limiting amplifier offset
s Programmable data sampling phase
s Additional CML serial data input for system
loopback
s Parity bit generation
s Analog and digital loss of signal (LOS) indicators
s Optional demultiplexer powerdown mode
conserves power
s Single 3.3 V supply
s Available in either MBIC 025 BiCMOS technology
or lower-power MBIC 025 silicon germanium
BiCMOS technology
s High-speed LVPECL digital I/O
s Jitter tolerance, transfer, and generation compliant
with the following:
— Telcordia Technologies* GR-253
— ITU-T G.825
— ITU-T G.958
s Loss of signal compliant with the following:
— Telcordia Technologies GR-253
* Telcordia Technologies is a registered trademark of Bell Com-
munications Research, Inc.
Applications
s SONET/SDH line termination equipment
s SONET/SDH add/drop multiplexers
s SONET/SDH cross connects
s SONET/SDH test equipment
Description
The Lucent Technologies Microelectronics Group
TRCV012G5 operates at the OC-48/STM-16 data
rate of 2.5 Gbits/s. The TRCV012G7 device operates
at either 2.5 Gbits/s or the RS FEC OC-48/STM-16
data rate of 2.7 Gbits/s. For clarity, this data sheet
refers to the TRCV012G5 serial data rate as
2.5 Gbits/s and the parallel data and reference clock
frequency as 155 MHz. (The precise rates are
2.48832 Gbits/s and 155.52 MHz.) When using the
TRCV012G7 at the FEC rate, the 2.5 Gbits/s data
rate should be interpreted as 2.7 Gbits/s and the par-
allel and clock frequency should be interpreted as
166 MHz. (The precise rates are 2.66606 Gbits/s and
166.62 MHz.)
The devices contain a limiting amplifier with 30 dB
gain, a clock and data recovery PLL with high-speed
serial clock and data outputs, and a 1:16 demulti-
plexer with differential PECL data and clock outputs.
The device provides improved optical receiver perfor-
mance when used in optically amplified systems due
to a direct slice adjust input pin and a 6 ps adjust-
ment capability in the slicing decision time. Both
devices are available in either BiCMOS or in SiGe
BiCMOS technology for lower power operation.