OC-48/STM-16 Receiver without Clock
Recovery
SRX48 Seris
Product Description
The SRX48 modules are receivers designed to meet or exceed the SO-
NET/SDH optical interface requirements at OC-48/STM-16 (2.488 Gb/s)
data rate. Three performance versions are available which are fully com-
pliant with Short Reach, Intermediate Reach and Long Reach specifica-
tions at 1300 nm or 1550 nm wavelength.
The receiver for the Short Reach and Intermediate Reach version uses
PIN photodiodes. For the Long Reach version, InGaAs avalanche pho-
todiodes (APDs) are used to achieve high sensitivity. The Long Reach
receiver features a low noise GaAs transimpedance IC with AGC capa-
bility to provide an extremely wide dynamic range. The DATA outputs
are differential signals designed to be AC-coupled into 50 ohm load. A
TTL Signal Detect function which indicates loss of optical input and an
analog Received Optical Power Monitor output are also provided.
Features
All receiver modules can be operated with a single +5V supply. The op-
erating temperature range is -40°C to +85°C for the Short Reach and In-
termediate Reach version and 0°C to +70°C for the Long Reach version.
All receivers are housed in a 24-pin dual-in-line metal package with a
fiber pigtail (single mode fiber for Long Reach version and 50/125 μm
multimode fiber for Short Reach and Intermediate Reach versions),
which is terminated with MU, LC, ST, FC or SC connector.
Fully compliant with SONET/SDH OC-48 (2.5
Gb/s) specifications
Long Reach 1310 nm & 1550 nm as well as
Intermediate Reach and Short Reach
Internal temperature-compensated High
Voltage APD Supply (Long Reach version)
-40°C to +85°C Operating Temperature
(Intermediate Reach and Short Reach)
24-pin DIP metal package
MU, LC, FC, ST, SC-connectorized fiber pigtails
Differential DATA interface
Received Optical Power Monitor function
TTL SIGNAL DETECT output
Single +5 V supply
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
TST
Storage Temperature
- 40
+ 85
°C
“I”option (“SR”& “IR”only)
“H”option
- 40
+ 85
+ 70
- 5.0
+ 6.0
VCC
Operating Case Temperature
TOP
°C
0
-
Pin, max
VCC
VIN
-
Maximum Optical Input Power (“LR”only)
Supply Voltage
dBm
V
0
0
-
Input Voltage
V
Lead Soldering Temperature & Time
260°C, 10 sec
R5.2008.04.30
An Oplink Company