Advance Data Sheet September 2000 R768-Type OC-768/STM-256 Lightweight Receiver Features The R768 Receiver is manufactured in a 16-pin, pigtailed surface-mount metal package with a single-ended V-connector. ■ High data rate capability, 40 Gbits/s ■ PIN photodetector ■ Fully operational through the L-band (1.6 µm) wavelength range ■ Single-mode fiber pigtail with FC/PC optical connector ■ Operating case temperature range: 0 °C to 65 °C ■ Compact, butterfly package Applications ■ Line terminal equipment ■ High-speed networks up to 40 Gbits/s ■ SONET OC-768 and SDH STM-256 telecommunications applications ■ Extended-reach datacom and telecom applications ■ Digital video R768-Type OC-768/STM-256 Lightweight Receiver Advance Data Sheet September 2000 Description Pin Information Receiver Operation Table 1. Pin Descriptions Pin Number Name 1 Not Used 2 GND 3 Alternate PIN Bias 4 GND 5 GND The operating case temperature range for the receiver is 0 °C to 65 °C. 6 GND 7 VADJUST (optional) The receiver is manufactured in a compact, 16-pin surface-mount package with a single-mode optical fiber pigtail. The fiber pigtail is internally beveled for low return loss and is available with an FC-PC optical connector. 8 GND 9 GND 10 GND 11 GND The received data is dc-coupled. 12 VCC The receiver requires only a 6 V power supply for operation, plus an optional VADJUST from –1.0 V to +1.0 V (see pin descriptions). The photodiode requires a separate bias voltage: for the PIN, a nominal reverse bias of 4 V is required. 13 GND 14 PIN Bias 15 GND 16 NC The R768 40 Gbits/s fiber-optic receiver consists of a high-speed photodetector (PIN) and a wide-band linear preamp in a pigtailed surface-mount metal package with a single-ended V-connector. It is designed for use in single-mode, high-speed telecommunication applications at the SONET OC-768 and the ITU-T SDH STM-256 data rate of 42.5 Gbits/s. 2 Agere Systems Inc. R768-Type OC-768/STM-256 Lightweight Receiver Advance Data Sheet September 2000 Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations section of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Symbol Min Max Unit Positive Supply Voltage VCC 5.0 7.0 V Photodiode Forward Current* IPD — 1 mA Maximum Reverse Bias VB — 5 V Optical Input Power, PIN PMAX — 8 dBm TC 0 65 °C Tstg –40 85 °C Lead Soldering Temperature — — 250 °C Lead Soldering Time — — 10 s Operating Case Temperature Storage Temperature * Device is normally reverse biased. Forward biasing the photodiode can compromise device performance and reliability. Optical Characteristics Table 2. Optical Characteristics (TA = 25 °C) Parameter Symbol Min Typ Max Unit λ 1.480 — 1.610 µm Sensitivity, PIN PLOW — –7 — dBm Maximum Optical Input Power, Average, PIN PHIGH — 3 — dBm — –27 –30 — dBm ℜPIN — 0.7 — A/W ID — 0.5 — µA PDL — — 0.5 dB Optical wavelength for Rated Sensitivity Optical Return Loss Responsivity of PIN, λ = 1.55 µm Total Dark Current Polarization-dependent Loss Agere Systems Inc. 3 R768-Type OC-768/STM-256 Lightweight Receiver Advance Data Sheet September 2000 Electrical Characteristics Table 3. Electrical Characteristics (TA = 25 °C) Parameter Symbol Min Typ Max Unit VCC VPIN VADJ 5.5 3.5 –1.0 6.0 4.0 — 6.5 4.5 1.0 V V V ICC — 80 150 mA Power Dissipation PDISS — — 0.975 W Conversion Gain — — 60 — V/W Average Equivalent Input Noise Spectral Density — — — 50 pA/√Hz Low Frequency Cutoff (–3 dB) fL — 100 — kHz BW — 45 — GHz Rolloff (3 dB + 5 GHz) — — –10 — dB Peaking — — — 2 dB Deviation from Linear Phase: 100 kHz—25 GHz 25 GHz—40 GHz 40 GHz—50 GHz — — — — 10 20 40 — — — deg deg deg Output Return Loss: 100 kHz—20 GHz 25 GHz—40 GHz 40 GHz—50 GHz S22 — — — — — — –15 –10 –5 dB dB dB dc Power Supply Voltages: Positive Supply PIN Bias Optional VADJUST Positive dc Power Supply Current Bandwidth 4 Agere Systems Inc. R768-Type OC-768/STM-256 Lightweight Receiver Advance Data Sheet September 2000 Outline Diagram Dimensions are in millimeters. 21.440 16.590 3.890 1.270 2.375 0.508 PIN 8 PIN 1 C BORE 3.75 ∅ x 2.30 DP BOTH SIDES (#4-40 TAP THROUGH ENGLISH) 1.330 20.300 15.910 13.480 PIN 9 PIN 16 11.540 29.470 58.400 20.350 14.510 6.600 2.50 9.880 6.380 6.630 CONNECTOR NOT SHOWN 1-1157(F) Agere Systems Inc. 5 R768-Type OC-768/STM-256 Lightweight Receiver Advance Data Sheet September 2000 Ordering Information Table 4. Ordering Information Description R768-Type OC-768/STM-256 Lightwave Receiver Product Code Photodiode Connector Comcode R768PGAA PIN FC 108894635 R768PSAA PIN LC 108894643 R768PDAA PIN SC 108727041 R768PJAA PIN Test Ferrule TBD For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: [email protected] N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon Tel. (852) 3129-2000, FAX (852) 3129-2020 CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen) JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045 Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liabi lity is assumed as a result of their use or application. ST is a registered trademark of Agere Systems Inc. Copyright © 2001 Agere Systems Inc. All Rights Reserved Printed in U.S.A. September 2000 DS00-383OPTO-1