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. 1 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. 3 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 4 1522-PGT 601 07 Rev. C © Ericsson Microelectronics AB, November 2000