PGT 603 12
Optical Transmitter Module
for STM-16 SH/OC-48 IR
The transmitter module is intended for
use at SDH and SONET bit rates. The
device meets all present requirements in
the ITU-T (G.957, G.958) and
Bellcore (GR-253-CORE) recommenda-
tions.
The module contains a DFB laser, mini-
mizing chirp and providing long trans-
mission span.
High integration level gives a compact
and easy to use solution for 2.5 Gbit
systems while maintaining low power
consumption.
The laser bias is externally accessible for
monitoring of the performance. A power
alarm is activated when the average
optical power cannot be maintained
within specification.
A laser shut-down is also provided
according to SDH/SONET requirements.
CLOCK SELECT
LASER
PHOTODIODE
DATA
RESHAPE
CLOCK
LASER
DRIVER
TRANSMITTER DISABLE
LASER
BIAS
LASER BIAS CONTROL
REAR FACET MONITOR
LASER BIAS MONITOR
Pin
1
2
3
4
5
8
12
13
16
18
20
22
24
6,15,17,19,21,23
7,9-11,14
Function
V
EE
BF Mon(+)
Bias Mon(+)
Tx Disable
Clock Select
NC/Deg alarm
V
EE
Vcc
DATA
DATA_N
CLK
CLK_N
Vcc
GND
NC
Description
Negative power supply voltage
Laser Back Facet monitor. Output signal.
Laser bias monitor. Output signal.
Transmitter disable. Input signal.
Select of Clock or No_Clock function. Input signal.
This connection should be left open/Deg Alarm
Negative power supply voltage
Positive power supply voltage
Data input signal.
Data_inverse input signal.
Clock input signal
Clock_inverse input signal
Positive power supply voltage
Ground
This connection should be left open
59
Key Features
•
•
•
•
•
•
•
•
•
DFB laser
Built-in optical isolator
Typical output power -3 dBm
Low power consumption
Small size (59 x 36 x 10 mm)
CMOS alarm output
Clocked reshape selectable
Multi-source compliant
Industry standard
25.4
36
Pin 13
Pin 24
Pin 12
10
Pin 1
3.3
2.54
23.11
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PGT 603 12
Optical and Electrical Specification
Item
Bit rate
Average output power
Peak wavelength
Spectral width
Side mode suppression
Extinction ratio
Eye diagram
Power consumption
Power supply
Operating case temperature
PGT 603 12
2488.32
-4.5 to -1.5
1270-1360
< 1.0
> 30
> 8.2
G.957
<3
+5.0
±
0.25
-5.2
±
0.25
-5 to +70
Unit
Mbit/s
dBm
nm
nm
dB
dB
ITU-T
W
V
°
C
Electrical Interface
Input signals, Clock and Data
Transmitter disable
Laser control circuitry out of range
ECL/PECL coupled with 50 ohm termination
CMOS, active high.
CMOS, active high when the laser control circuitry is out of range and no
longer can maintain laser output power within specification.
Quality Assurance
Ericsson Components commitment to quality has been proved through a decade of semiconductor device production
and has been confirmed to ISO 9001. These products are qualified according to the intention of applicable Bellcore
standards and Ericsson internal quality specifications, and supplied with final test data.
Connector Options
FC/PC
SC
(Other connectors available on request)
DA N G E R
D AN
Ericsson Components
Phone: +46 (8) 757 4402
Fax: +46 (8) 757 4621
American Sales Region
Phone: +1 (972) 583 7236
Fax: +1 (972) 583 5005
European Sales Region
Phone: +44 (1793) 488 300
Fax: +44 (1793) 488 301
INVISIBLE LASER RADIATION
Information given in this data sheet is believed to be
accurate and reliable. However no responsibility is
assumed for the consequences of its use nor for any
infringement of patents or other rights of third parties
which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights
of Ericsson Components AB. These products are sold only
according to Ericsson Components general conditions of
sale, unless otherwise confirmed in writing.
AVOID DIRECT EXPOSURE TO BEAM
WAVELENGTH 1300 nm - 1500 nm
CLASS 1 LASER
Specifications subject to change without notice.
1522-PGT 603 12 Uen Rev. A
© Ericsson Components AB, February, 1999
51
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