OC-12/STM-4 Receiver with
Clock Recovery
SRC12 Series
Product Description
The SRC12 is a Receiver Module with internal clock recovery designed to
meet or exceed the SONET/SDH optical interface requirements at OC-12/
STM-4 (622 Mb/s) data rate. Highly reliable InGaAs/InP PIN photodiodes
are used to cover the entire long wavelength range from 1100 nm to 1550
nm.
The receiver features a low noise GaAs transimpedance IC with AGC ca-
pability to provide an extremely wide dynamic range and high sensitivity.
A Phase Lock Loop (PLL) circuit is included to perform the clock recovery
function and resampling of the data.
The SRC12 receiver requires a single +5 V supply. The DATA & CLOCKinter-
face signals are differential PECL while the SIGNAL DETECT outputs have
TTL interface.
The SRC12 module can operate over an operating temperature range of
0°C to +70°C (“H” option) or -40°C to +85°C (“I” option). It is housed in a
20-pin dual-in-line metal package with integral ST, FC or SC connector
receptacle or fiber pigtail (50 µm multimode fiber). The fiber pigtail is ter-
minated with ST, FC or SC connector.
Features
Full compliance with SONET/SDH OC-12/
STM-4 specifications
Long Reach and Intermediate Reach
Phase-Lock-Loop (PLL) Clock Recovery
- 40°C to +85°C Operating Temperature (“I”
Related OC-12/STM-4 transmitters & receivers
STX-12: 20-pin laser transmitter
option)
SRX-12: 20-pin receiver without clock recovery (PECL SIGNAL DETECT)
SRX-12-L: 20-pin receiver without clock recovery (TTL SIGNAL DETECT)
SRC-12-S: 24-pin receiver with clock recovery
Multi-sourced 20-pin DIP metal package
FC, ST, SC-connectorized fiber pigtails or
Integral FC, SC or ST connector receptacle
PECL DATA & CLOCK interface
TTL SIGNAL DETECT interface
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
TST
Storage Temperature
- 40
+ 85
°C
“I”option
- 40
+ 85
+ 70
85
Operating Temperature
TOP
°C
“H”option
0
-
-
VCC
-
Operating & Storage Humidity
Supply Voltage
%
V
0
-
+ 6.0
Lead Soldering Temperature & Time
260°C, 10 sec
R5.2008.06.04
Oplink Communications, Inc.