High Sensitivity OC-12/STM-4 APD
Receivers
SRX12-APD
Product Description
The SRX12-APD is a high sensitivity receiver module designed to ex-
ceed the SONET/SDH optical interface requirements at OC-12/STM-4
(622Mb/s) data rate. Highly reliable InGaAs/InP avalanche photodiode
(APD) is used to cover the entire long wavelength range from 1100nm
to 1600nm.
The receivers feature a low noise GaAs transimpedance IC with AGC ca-
pability to provide an extremely wide dynamic range and high sensitiv-
ity. The APD bias voltage is temperature compensated to ensure stable
operation over the entire operating temperature range. A signal detect
function which indicates loss of optical input is provided. A differential
optical power monitor output is also available.
The SRX12-APD receivers require only a single +5V supply. The data in-
terface signals are differential PECL. The signal detect outputs can have
either PECL or TTL interface.
The SRX12-APD receivers can operate over an operating case tempera-
Features
Exceeds SONET/SDH OC-12/STM-4 Long Reach
Specifications
ture range of 0°C to +70°C (“H”option) or -40°C to +85°C (“I”option). The
module is housed in a 24-pin dual-in-line metal package with a single
mode fiber pigtail, which is terminated with ST, FC or SC connector.
Optical Power Monitor Outputs
-40°C to +85°C Operating Temperature Option
24-pin DIP Metal Package
Related OC-12/STM-4 transmitters & receivers
STX-12: 20-pin laser transmitter
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
ST, FC or SC-connectorized Fiber Pigtail
Differential PECL Data Outputs
Differential PECL or TTL Signal Detect Output
Option
Single +5V Power Supply
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
TST
Storage Temperature
- 40
+ 85
°C
“H”option
“I”option
0
+ 70
+ 85
85
Operating Case Temperature
TOP
°C
- 40
-
VCC
Pin, max
-
Operating & Storage Humidity
Supply Voltage
-
0
-
%
V
+ 6.0
- 5.0
Maximum Input Optical Power
Lead Soldering Temperature & Time
dBm
-
260°C, 10 sec
R3.2008.04.30
Oplink Communications, Inc.