English
Language : 

STX-SRX-0400 Datasheet, PDF (1/9 Pages) OPLINK Communications Inc. – SONET/SDH Transmitters & Receivers
OCP©
STX / SRX
SONET/SDH Transmitters & Receivers
Features
! Fully compliant with SONET/SDH OC-1 to
OC-24 (52 Mb/s, 156 Mb/s, 622 Mb/s &
1.25 Gb/s) specifications
! Long Reach 1310 nm (40 km distance),
Long Reach 1550 nm (80 km distance)
as well as Intermediate Reach (15 km)
! Eye Safe (Class I Laser Safety)
! - 40°C to +85°C Operating Temperature
(option “A”)
! Multi-sourced 20-pin DIP metal package
Description
The STX and SRX modules are laser transmitters and receivers
designed to meet or exceed the SONET/SDH optical interface
requirements at OC-1 (52 Mb/s), OC-3/STM-1 (155 Mb/s),
OC-12/STM-4 (622 Mb/s), and OC-24 (1.25 Gb/s) data rates.
Many performance versions are available which are fully
compliant with Intermediate Reach and Long Reach
specifications at 1300 nm or 1550 nm wavelength. All modules
satisfy Class I Laser Safety requirements in accordance with
the US FDA/CDRH and international IEC-825 standards.
The transmitter features an Automatic Power Control (APC)
circuit to maintain the optical output power at a constant level
against variations in ambient temperature and device aging.
A Laser Disable control input is also provided. The laser bias
current and back-facet light output can also be monitored. The
receiver features a low noise GaAs transimpedance IC with
AGC capability to provide an extremely wide dynamic range.
Absolute Maximum Ratings
! FC, ST, LC, MU, SC-connectorized fiber
pigtails or Integral FC , SC or ST
connector receptacle
A Signal Detect function which indicates loss of optical input
is also provided.
The transmitter can be operated with a single supply, either +5
V or - 5 V. The receiver can be operated with dual +5 V and - 5
V supply, or single +5 V supply, or single - 5 V supply. The
electrical interface signals are differential ECL or PECL. If TTL
interfaces for SIGNAL DETECT outputs are required, the SRX-
12-L receivers can be used (please refer to the SRX-12-L data
sheet).
Both modules operate over an operating temperature range of
0°C to +70°C (“B” option) or -40°C to +85°C (“A” option).
They are housed in a 20-pin dual-in-line metal package with
integral ST, FC or SC connector receptacle or fiber pigtail
(single mode fiber for the transmitter and 50 µm multimode
fiber for the receiver). The fiber pigtail is terminated with ST,
FC, LC, MU or SC connector.
Parameter
Symbol
Minimum
Maximum
Units
Storage Temperature
Operating Temperature
"A" option
"B" option
Tst
- 40
+ 85
°C
- 40
+ 85
Top
0
°C
+ 70
Operating & Storage Humidity
-
-
85
%
Supply Voltage
Input Voltage (to Transmitter)
Lead Soldering Temperature & Time
VCC - VEE
0
Vin
VEE
-
-
+ 6.0
V
VCC
V
260°C, 10 sec
Optical Communication Products, Inc.
1
21737-0400, Rev. O
2-7-2002