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| PHYSICAL LAYER PRODUCT TRANSPORT PRODUCT VSC7984 11.3 Gb/s Electroabsorption Modulator Driver BENEFITS: Unique architecture provides excellent output impedance, further reducing output jitter. Extended case temperature range (-10C to 95C) providing more thermal margin for system design. Guaranteed operation at worst-case duty cycle (85% crossing point), improving yield by enabling the use of a wider range of modulators. Internal operational amplifiers reduce off-chip circuit complexity and component count. F E AT U R E S : Single +5V or -5.2V Supply Selectable Data Retiming Output Enable AC-Coupled Inputs Internally-Stabilized Modulation and Bias Outputs Excellent Output Return Loss 300mV Differential Data Input Sensitivity Programmable Output Data Eye Crossing Point 2.5V On-chip Voltage Reference Available in Bare Dice, 32-pin 5mm x 5mm QFN, or 32-pin Metal-glass QFP Output enable for both eye safety and low power in sleep modes required by new module MSAs. S P E C I F I C AT I O N S : VSC7984 - Supply Voltage: +5V or -5.2V - Supply Current: 290mA - Input Sensitivity: 300mV to 1V Single Ended or Differential - Data Rate: 11.3 Gb/s - Clock Rate: 11.3 GHz - Output Offset Adjust: 0 to 1.5V - Output Modulation Voltage: 1.4 to 2.8V - Output Rise Fall Time: 25 ps - Data Eye Crossing Point Adjustment: 25% to 85% - Operating Temperature from -10C to 95C - Package: * VSC7984-W: Dice * VSC7984YF: 24-pin 4mm x 4mm QFN BLOCK DIAGRAM: VCC A P P L I C AT I O N S : 50 50 50 50 OUT DCC DATAN VCC Retimer OUTN 10G Transmit 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 Optical - DWDM SONET/SDH Transponders - XENPAK, X2, XPAK modules - 300pin MSA modules Transceivers - XFP modules DATA CLK CLKN CSEL PW Control Circuitry VMOD VOFS VEE VREF VTEMP PWN ENABLE PB-VSC7984-001 VSC7984 11.3 Gb/s Electroabsorption Modulator Driver GENERAL DESCRIPTION: The VSC7984 is a 11.3Gb/s clocked modulator driver for SONET/SDH and 10GbE applications. The device provides selectable data retiming to improve jitter performance and controls for output bias voltage, modulation voltage, and duty cycle. Internal operational amplifiers and on-chip voltage reference preclude the need for additional off-chip circuitry to stabilize modulation and offset voltages. A temperature monitor output indicates temperature to simplify testing and to verify the device is not operated beyond its recommended maximum temperature. The VSC7984 is available in a 4mm x 4mm 24-lead plastic package, or in die form. A P P L I C AT I O N D I A G R A M S : 300-Pin, 200-Pin Transponder 10Gbps Receiver Photo Detector TIA VSC7999 VSC7979 VSC8473 CRU/DEMUX/ MUX/CMU VSC8477 Adaptive XCVR VSC9271 10G FEC/PM Laser C Drivers VSC7983 - EML VSC7984 - EML VSC7992 - RZ XFP Transceiver 10 Gb/s Receiver Photo Detector TIA VSC7999 VSC7979 Post Amp + CDR XFI Laser C VSC7983 VSC7984 EML DRIVER VSC8233 Dual Signal Conditioner CDR+CU equalization VSC8473 VSC8477 10G SONET XCVRs 0-12" FR4 OPTICAL EYE DIAGRAMS: 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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