ERICSSON PGT60107

PGT 601 07
1620 nm Transmitter Module
for Supervisory
Channel Applications
Key Features
• Provides 1620 nm supervisory channel
laser source for WDM applications
according to ITU-T draft G.691
• Average power control
• Small size (40x70x9 mm)
• CMOS alarm output
• Thermoelectric cooler included
• P-ECL data inputs
• Tone modulation input
• Single 5.0 V supply
Applications
• 1620 nm supervisory channel applications in WDM systems
Description
The transmitter module is intended for use at SDH and SONET bit rates. The
device meets the intention of the ITU-T (G.691) recommendations.
The single silicon IC is used as a laser driver, modulator and automatic power
control. To ensure a proper laser operation over the wide temperature range
and life of operation, the average optical output power is controlled. 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.
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PGT 601 07
TONE
MODULATION
DATA
P-ECL
INPUT
OUTPUT
DRIVER
LASER
PACKAGE
LASER
SHUT
DOWN
LASER
SAFETY
CIRCUIT
OUTPUT
POWER
CONTROL
TEMP.
CONTROL
OUTPUT
POWER
ALARM
Figure 1. Block diagram
Pin
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
Connection
NC
Laser shut down
VCClaser
Laser bias current
monitor
NC
NC
Laser control circ.
out of range
NC
Temp Monitor
NC
VCCcooler
Temp Low Alarm
Temp High Alarm
NC
NC
VCCcoler
GND
GND
NC
NC
NC
GND
Data_N
Data
VP-ECL
Tone modulation input
VCCdriver
GND
Figure 2. Mechanical outline and pin description
2
BIAS
MONITOR
TEMP.
ALARM &
MONITOR
OPTICAL
FIBER
PGT 601 07
Optical Characteristics
Electrical and optical characteristics over recommended operating conditions, unless otherwise noted.
Parameter
Peak wavelength
Bit rate
Average output power
Side mode supression ratio
Extinction ratio
Eye diagram
Conditions
EOL
EOL
Symbol
Min
λP
1612
2
-3
30
10
P
SMSR
EX
Typ
Max
Unit
1628
155
+2
nm
Mb/s
dBm
dB
dB
ITU-T
Max
Unit
5.3
200
5.3
650
V
mA
V
mA
G.957
Electrical Characteristics
Parameter
Conditions
Symbol
Power supply
Operating current
without TEC
Power supply TEC
Operating current TEC
Input data
Transmitter disable
Laser control circuitry out of range
Min
Typ
4.7
3.0
P-ECL
CMOS
CMOS
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Operating case temperature
TCase
0
Typ
70
°C
Parameter
Symbol
Min
Max
Unit
Storage temperature
Supply voltage
TSto
-40
-0.5
85
6.0
°C
V
Absolute Maximum Ratings
CAUTION: Stresses outside those listed in ”Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress only rating and operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied.
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PGT 601 07
Handling Precautions
This device may be damaged as a result of electrostatic
discharge (ESD). Take proper precautions during both handling and testing. This typically includes grounded wrist
wraps, workbenches and floor mats in ESD controlled areas.
Semiconductor devices may be damaged by current surges,
use appropriate transient protection.
Quality Assurance
Ericsson Microelectronics commitment to quality has been
proven through a decade of semiconductor device production and has been confirmed to ISO 9001. Opto product
qualification is made according to the intention of applicable
Telcordia standards.
Connector Options
FC/PC
SC
(Other connectors available on request)
DANGER
INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
WAVELENGTH 1300 nm - 1600 nm
CLASS 3B LASER
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 Microelectronics. These products are sold
only according to Ericsson Microelectronics' general conditions of sale, unless
otherwise confirmed in writing.
Product specifications subject to change without notice.
Ericsson Microelectronics AB
SE-164 81 Kista, Sweden
Telephone: +46 8 757 50 00
www.ericsson.com/microelectronics
For local sales contacts, please refer to our website
or call: Int + 46 8 757 47 00, Fax: +46 8 757 47 76
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1522-PGT 601 07 Rev. C
© Ericsson Microelectronics AB, November 2000