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| VITESSE SEMICONDUCTOR CORPORATION Advance Product Information VSC7809 Features * Integrated Photodetector/Transimpedance Amplifier Optimized for High-Speed Optical Communications Applications * Fibre Channel/Gigabit Ethernet Compatible * High Bandwidth Bandwidth (MHz) 800 Photodetector/Transimpedance Amplifier Family for Optical Communication * Low Input Noise Equivalent Power * Large Optically Active Area * Single 3.3V Power Supply Part Number VSC7809 Data Rate 1.25Gb/s Input Noise (W rms) 1.4 Optically Active Area (m diameter) 100 General Description The VSC7809 integrated Photodetector/Transimpedance Amplifier provides a highly integrated solution for converting light from a fiber optic communications channel into a differential output voltage. The benefits of Vitesse Semiconductor's Gallium Arsenide H-GaAs process are fully utilized to provide very high bandwidth and low noise in a product with a large optically active area for easy alignment. The sensitivity, duty cycle distortion and jitter meet or exceed all Fibre Channel and Gigabit Ethernet application requirements. Parts are available in either die form, flat-windowed packages or in ball-lens packages. By using a metal-semiconductor-metal (MSM) photodetector with a monolithic integrated transimpedance amplifier, the input capacitance is lowered which allows for a larger optically active area than in discrete photodetectors. Integration also allows superior tracking over process, temperature and voltage between the photodetector and the amplifier, resulting in higher performance. This part can easily be used in developing Fibre Channel Electro-Optic Receivers which exhibit very high performance and ease of use. VSC7809 Block Diagram Photodetector/Transimpedance Amplifier +3.3V DOUTP DOUTN GND Both DOUTP and DOUTN are back-terminated to 25. G52195-0, Rev 2.4 04/05/01 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com Page 1 VITESSE SEMICONDUCTOR CORPORATION Photodetector/Transimpedance Amplifier Family for Optical Communication Table 1: Electro-Optical Specifications(1) Symbol VSS IDD PSRR fC BW S RO VO RD VDC VDC NEPO VNO DCD IOUT PDJ ---PPJ tR tF Advance Product Information VSC7809 Typ(2) 3.3 23 -10 840 1.8 1100 -21 25 0.26 1.2 1 1.0 2.6 35 100 190 30 0.4 200 1.4 1.25 4.5 60 250 400 400 Parameter Supply Voltage Supply Current Power Supply Rejection Ratio Wavelength Low Frequency Cutoff Optical Modulation Bandwidth Sensitivity Single Ended Output Impedance Differential Output Voltage Differential Responsivity Output Bias Voltage Bias Offset Voltage Input Noise Equivalent Power Output Noise Voltage Duty Cycle Distortion Output Drive Current Pattern Dependent Jitter Optically Active Area PP Jitter Rise Time Fall Time Min 3.0 14 700 800 -20 20 0.2 0.8 1.0 2.0 - Max 3.6 40 850 2.5 - Units V mA dB nm MHz MHz dBm V mV/W V mV W rms mV rms % mA ps m ps ps ps Conditions Frequencies up to 40MHz Use external filter to get PSRR of -35dB(3). -3db, P(4) = -15dBm @ 50MHz -3db, P = -15dBm @ 50MHz 1.25Gb/s, BER10-12(5) P = -5dBm, RLOAD = 100 differential RLOAD = 100 P = -15dBm @ 50MHz P = 0mW P = 0mW P = -5dBm P = -5dBm P = -5dBm +/-10% Voltage Window Diameter P = -5 dBm 20%-80% P = -5dBm 20%-80% P = -5dBm Notes: (1) Specified over 0C (ambient) to 70C (case). (2) Typical conditions 25C and 3.3V power supply. (3) See Note 1 in Application Note 48. (4) P = Incident Optical Power (5) See Note 2 In Application Note 48. Page 2 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com G52195-0, Rev 2.4 04/05/01 VITESSE SEMICONDUCTOR CORPORATION Advance Product Information VSC7809 Table 2: Absolute Maximum Ratings Symbol VSS TSTG HSTG HOP PINC IS Power Supply Storage Temperature Storage Humidity Operating Humidity Incident Optical Power Impact Shock Photodetector/Transimpedance Amplifier Family for Optical Communication Parameter 6V Required Limits -55C to 125C (case temperature under bias) 5 to 95% R.H. (including condensation) 8 to 80% R.H. (excluding condensation) +3dBm 500 G. Half Sine Wave Pulse Duration 1 +/-0.5 ms 3 blows in each direction 20 > 2000 > 20Hz, 10 Minutes 10 G. Peak Acceleration 4 Complete Cycles, 3 Perpendicular Axes VIB Vibration Table 3: Recommended Operating Conditions Symbol VSS TOP PMAX Power Supply Operating Temperature Maximum Optical Power Parameter Limits 3.0VP-3.6V (3.3V nominal) 0C (ambient) to 70C (case) 0dBm G52195-0, Rev 2.4 04/05/01 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com Page 3 VITESSE SEMICONDUCTOR CORPORATION Photodetector/Transimpedance Amplifier Family for Optical Communication Advance Product Information VSC7809 Description Data output normal (with reference to incident light) Data output complement (inverting) (with reference to incident light) Power supply Ground (package case) Table 4: Pin Table Specifications for Ball Lens Packages, Flat Window Packages and Bare Die Symbol DOUTP DOUTN VSS GND NOTE: Pin Diagram is identical for both TO-46 and TO-56 package styles. Figure 1: Pin Diagram VSS DOUTP DOUTN GND Bottom View Figure 2: Schematic View of Bare Die Pad Assignments GND DOUTN GND DOUTP GND VSS Page 4 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com G52195-0, Rev 2.4 04/05/01 VITESSE SEMICONDUCTOR CORPORATION Advance Product Information VSC7809 Package Information Individual Die Photodetector/Transimpedance Amplifier Family for Optical Communication 0.1 (4x) 0.365 (4x) 0.055 (6x) 0.11 0.42 (4x) 0.055 (4x) 0.11 DOUTP DOUTN GND (2x) 0.74 GND 1.68 1.58 1.48 VSC7809 (2x) 0.29 0.35 VSS GND 0.05 0.05 (2x) 0.247 (2x) 0.1235 (2x) 0.18 0.05 0.05 0.835 0.94 1.04 0.05 (2x) 0.15 Page 5 G52195-0, Rev 2.4 04/05/01 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com VITESSE SEMICONDUCTOR CORPORATION Photodetector/Transimpedance Amplifier Family for Optical Communication Advance Product Information VSC7809 TO-46 Flat Window Package Reference Isometric Page 6 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com G52195-0, Rev 2.4 04/05/01 VITESSE SEMICONDUCTOR CORPORATION Advance Product Information VSC7809 TO-56 Flat Window Package Photodetector/Transimpedance Amplifier Family for Optical Communication Reference Isometric G52195-0, Rev 2.4 04/05/01 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com Page 7 VITESSE SEMICONDUCTOR CORPORATION Photodetector/Transimpedance Amplifier Family for Optical Communication Advance Product Information VSC7809 TO-46 Ball Lens Package--7mm Lead Length Reference Isometric Page 8 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com G52195-0, Rev 2.4 04/05/01 VITESSE SEMICONDUCTOR CORPORATION Advance Product Information VSC7809 TO-46 Ball Lens Package--13mm Lead Length Photodetector/Transimpedance Amplifier Family for Optical Communication Reference Isometric G52195-0, Rev 2.4 04/05/01 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com Page 9 VITESSE SEMICONDUCTOR CORPORATION Photodetector/Transimpedance Amplifier Family for Optical Communication Advance Product Information VSC7809 Ordering Information The order number for this product is formed by a combination of the device type and package type. VSC7809 xx Device Type Photodetector/Transimpedance Amplifier Family for Optical Communication Package WA: TO-46 Flat Window WB: TO-56 Flat Window WC: TO-46 Ball Lens--7mm Lead Length WD: TO-46 Ball Lens--13mm Lead Length X: Bare Dice Notice Vitesse Semiconductor Corporation ("Vitesse") provides this document for informational purposes only. This document contains pre-production information about Vitesse products in their concept, development and/or testing phase. All informaiton in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. Nothing contained in this document shall be construed as extending any warranty or promise, express or implied, that any Vitesse product will be available as described or will be suitable for or will accomplish any particular task. Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without written consent is prohibited. Page 10 (c) VITESSE SEMICONDUCTOR CORPORATION * 741 Calle Plano * Camarillo, CA 93012 Tel: (800) VITESSE * FAX: (805) 987-5896 * Email: prodinfo@vitesse.com Internet: www.vitesse.com G52195-0, Rev 2.4 04/05/01 |
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