Ericsson PGT60107 Datasheet

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

PGT 601 07

1620 nm Transmitter Module

for Supervisory

Channel Applications

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.

PGT 601 07

TONE MODULATION

DATA

LASER SHUT DOWN

Figure 1. Block diagram

Pin Connection

1. NC

2. Laser shut down

3. V

CClaser

4. Laser bias current monitor

5. NC

6. NC

7. Laser control circ. out of range

8. NC

9. Temp Monitor

10. NC

11. V

CCcooler

12. Temp Low Alarm

13. Temp High Alarm

14. NC

15. NC

16. V

CCcoler

17. GND

18. GND

19. NC

20. NC

21. NC

22. GND

23. Data_N

24. Data

25. V

P-ECL

26. Tone modulation input

27. V

CCdriver

28. GND

P-ECL INPUT

LASER SAFETY CIRCUIT

OUTPUT DRIVER

OUTPUT POWER CONTROL

OUTPUT POWER ALARM

BIAS MONITOR

LASER PACKAGE

TEMP. CONTROL

TEMP. ALARM & MONITOR

OPTICAL FIBER

Figure 2. Mechanical outline and pin description

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