R768 AGERE | Alldatasheet
Document overview
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Technical content
Features
I High data rate capability, 40 Gbits/s I PIN photodetector I Fully operational through the L-band (1.6 µm) wavelength range I Single-mode fiber pigtail with FC/PC optical con- nector I Operating case temperature range: 0 °C to 65 °C I Compact, butterfly package
Applications
I High-speed networks up to 40 Gbits/s I SONET OC-768 and SDH STM-256 telecommuni- cations applications I Extended-reach datacom and telecom applications I Digital video
2 Agere Systems Inc. Advance Data Sheet September 2000Lightweight Receiver R768-Type OC-768/STM-256
Description
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 applica- tions at the SONET OC-768 and the ITU-T SDH STM-256 data rate of 42.5 Gbits/s. The operating case temperature range for the receiver is 0 °C to 65 °C. The receiver is manufactured in a compact, 16-pin sur- face-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 con- nector. The received data is dc-coupled. The receiver requires only a 6 V power supply for oper- ation, plus an optional V ADJUST from –1.0 V to +1.0 V (see pin descriptions). The photodiode requires a sep- arate bias voltage: for the PIN, a nominal reverse bias of 4 V is required. Pin Information Table 1. Pin Descriptions
1 Not Used
3 Alternate P IN Bias
10 GND
11 GND
12 V CC
13 GND
14 PIN Bias
15 GND
periods can adversely affect device reliability.
- Device is normally reverse biased. Forward biasing the photodiode can compromise device performance and reliability.
Table 2. Optical Characteristics (T
September 2000Lightweight Receiver R768-Type OC-768/STM-256 4 Agere Systems Inc.
Electrical Characteristics
Table 3. Electrical Characteristics (TA = 25 °C)
25 GHz—40 GHz
40 GHz—50 GHz
September 2000 Lightweight Receiver R768-Type OC-768/STM-256 Agere Systems Inc. 5 Outline Diagram Dimensions are in millimeters. 13.480 15.910 20.300 0.508 1.270 3.890 16.590 21.440 C BORE 3.75 ∅ x 2.30 DP BOTH SIDES (#4-40 TAP THROUGH ENGLISH) 2.375 1.330 11.540 29.470 PIN 9 PIN 16 PIN 1PIN 8 58.400 20.350 14.510 6.630 6.600 2.50 CONNECTOR NOT SHOWN 9.880 6.380 1-1157(F)
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 For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, P A 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 , T ower 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 (T okyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, T AIWAN: (886) 2-2725-5858 (T aipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045 Advance Data Sheet September 2000Lightweight Receiver R768-Type OC-768/STM-256
Ordering Information
Table 4. Ordering Information