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| Data Sheet August 2000 2611A Broadband Photodiode Module Description The 2611A is a packaged impedance-matched photodiode module with internal gain designed for use in optical broadband receivers in fiber-optic networks. The patented impedance-match technology results in improved gain-bandwidth product compared to external circuits due to control of parasitics between the photodiode and the transformer. Additionally, the 2611A is designed for superior distortion performance at up to 6 dBm (received) input power. Pin Information Features s s s Table 1. Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description Ground Ground Ground Ground Ground Ground Open Open RF Out Ground Bias Ground Open Ground Flat response, 0.5 dB Frequency response up to 1 GHz High responsivity: -- >0.85 A/W at 1310 nm -- 0.95 A/W at 1550 nm Internal current gain, 6 dB (typ.) Up to 3 dBm max. continuous received power (6 dBm max.) 75 impedance-matched s s s Applications s Broadband CATV receivers requiring high input power for improved performance 2611A Broadband Photodiode Module Data Sheet August 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 operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameter Operating Case Temperature Range Storage Temperature Range Optical Input Power dc Bias Voltage Forward Current Symbol TC Tstg PIN VPD IF Min -40 -40 -- -- -- Max 85 85 4 30 10 Unit C C mW V mA Characteristics. Table 2. Electrical/Optical Characteristics Parameter Optical Wavelength Range Responsivity Optical Return Loss1 Bias Voltage Dark Current 1. Without connector Symbol -- RL -- ID Min 1310--1550 20 -- -- -- -- -- Typ -- >0.85 at 1310 nm, >0.95 at 1550 nm >45 20 (nominal) 200 at 20 C Max -- -- -- -- -- -- Unit nm mA/mW mA/mW dB V nA Table 3. RF Characteristics Parameter Frequency Range Gain 1 Symbol F G -- -- Min 40 -- -- Typ -- >5 < 0.5 See Figure 1. Max 1000 -- -- Unit MHz dB dB Frequency Response Receiver Noise Distortion Products Second Order Third Order 2: CSO CTB -- -- -- <-68 above 550 MHz <-70 below 55 MHz <-80 -- -- -- dBc dBc dBc 1. Current gain of internal transformer circuit. 2. Two laser test. Each laser has 40% modulation index. Total received optical power is 3 dBm. Distortion products measured at 80 MHz, 450 MHz, 600 MHz, 850 MHz, and 1000 MHz. 2 Agere Systems Inc. Data Sheet August 2000 2611A Broadband Photodiode Module Characteristics Curves 14 RECEIVER NOISE (pA/Hz1/2) 12 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 MATCHING GAIN (dB) 9 10 11 12 X X X X X X X X X X X X X X X X X X X X X X KEY NF = 0 dB X X NF = 6 dB X X NF = 2 dB NF = 8 dB NF = 4 dB NF = 10 dB 1-1182 (F).c Figure 1. Receiver Noise 1.0 RELATIVE RESPONSE (dB) SPEC LIMIT 0.5 0 - 0.5 - 1.0 - 2.0 0 200 400 600 800 1000 FREQUENCY (MHz) 1-1184 (F).c SPEC LIMIT Figure 2. Typical Frequency Response Measured into 75 Load, VSWR <1.5 Agere Systems Inc. 3 2611A Broadband Photodiode Module Data Sheet August 2000 Outline Diagram Dimensions are in inches and (millimeters). 0.800 (20.32) PIN 14 0.230 (5.842) 0.118 (2.997) 0.500 (12.7) 0.300 (7.62) PIN 1 .100 TYP 0.600 (15.24) 0.018 (0.457) 0.196 (4.978) Ordering Information Table 4. Ordering Information* Device Code 2611A Description Broadband Photodiode Module Connector None Pigtail Single mode, 9 m/125 m; Comcode 108867474 * Other options available. For additional ordering information, please contact an account manager at OPTO West, Agere Systems Inc., 1-800362-3891 (for sales staff, please press option 2). For additional information, contact your Agere Systems Account Manager or the following: http://www.agere.com INTERNET: docmaster@micro.lucent.com E-MAIL: 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 PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256 Tel. (65) 778 8833, FAX (65) 777 7495 CHINA: Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC Tel. (86) 21 50471212, FAX (86) 21 50472266 JAPAN: Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700 EUROPE: Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK) Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. Copyright (c) 2001 Agere Systems Inc. All Rights Reserved August 2000 DS00-296OPTO |
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