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| PHYSICAL LAYER PRODUCTS VSC7979, VSC7999 11.3 Gb/s Transimpedance Amplifiers with Photocurrent Monitor and Input Slicing Adjust BENEFITS: Source Terminated Differential Outputs for High Signal Integrity Linear Photocurrent Monitor Offers Diagnostic Capabilities Input Slicing Adjust Allows the End User to Optimize the Receiver Performance for Fiber Dispersion and Non-linearity A P P L I C AT I O N S : 10G Receiver Optical Sub-Assemblies: - 9.983 Gb/s SONET OC-192/SDH STM-64 - 10.3 Gb/s Ethernet - 10.5 Gb/s Fibre Channel - 10.7 Gb/s OTN G.709/G.975 - 12.5 Gb/s SONET with FEC - DWDM SONET/SDH Transponders: - XENPAK, X2, XPAK Modules - 300-pin MSA Modules Transceivers: - XFP Modules S P E C I F I C AT I O N S : Supply Voltage: 3.3V 10% Power Dissipation: 210mW - VSC7999 Power Dissipation: 180mW - VSC7979 Input Noise: 12 pA/ Hz Bandwidth: 10.5GHz (typical) Sensitivity : -19dBm (typical) Max Input Current: 2.5mA p-p (min) Operating Temperature from -10C to 85c F E AT U R E S : Single +3.3V Supply 9K Differential Transimpedance - VSC7999 3K Differential Transimpedance - VSC7979 Low Power Consumption for XFP Applications Photo Linear Current Monitor Input Slicing Adjust for Fiber Dispersion Compensation Available in Bare Dice SLCUP SLCDN IMON Input Current Monitor IIN BLOCK DIAGRAM: VPD VSC7999 OUTP OUTN Optical Distortion Adjustment . PB-VSC7979,7999-001 VSC7979,VSC7999 11.3 Gb/s Transimpedance Amplifiers with Photocurrent Monitor and Input Slicing Adjust GENERAL DESCRIPTION: The VSC7999 and VSC7979 are 10.7 Gb/s - 12.5 Gb/s high performance, low power transimpedance amplifiers designed for use in optical communication systems. The devices are intended for use with a PIN or an APD photodetector, and are capable of amplifying input currents over 2.5 mA with low duty-cycle distortion and with little total jitter change. The VSC7999 and VSC7979 offer 9kohm and 3kohm differential transimpedance respectively, eliminating the need for an additional post-amplifier. The outputs limit to a typical differential value of 600mVp-p, increasing the dynamic range of the system by reducing the possibility of exceeding the input voltage range of the transceiver device. The VSC7999 and VSC7979 also allow compensation for fiber non-linearities such as dispersion and EDFA non-linearity. A P P L I C AT I O N D I A G R A M S : 300-Pin, 200-Pin Transponder 10 Gb/s Receiver Photo Detector TIA VSC7999 VSC7979 VSC8473 CRU/DEMUX/ MUX/CMU VSC8477 Adaptive XCVR VSC9271 10G FEC/PM Laser Drivers VSC7983 - EML VSC7984 - EML VSC7992 - RZ uC XFP Transceiver 10 Gb/s Receiver Photo Detector TIA VSC7999 VSC7979 XFI Post Amp + CDR VSC8233 Dual Signal Conditioner Laser VSC8473 VSC8477 10G SONET XCVRs Drivers VSC7983 - EML VSC7984 - EML CDR+CU equalization 0-12e FR4 uC For more information on Vitesse Products visit the Vitesse web site at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or sales@vitesse.com 741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com (c)2003 Vitesse Semiconductor Corporation |
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