VSC7991 Datasheet, PDF (1/10 Pages) Vitesse Semiconductor Corporation – SONET/SDH 10.7Gb/s Electroabsorption Modulator/Laser Diode Driver

VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7991
SONET/SDH 10.7Gb/s
Electroabsorption Modulator/Laser Diode Driver
Features
• Maximum Rise/Fall Times of 38ps
• High-Speed Operation
(Up to 10.7Gb/s NRZ Data)
• Differential Inputs
• Single-Supply
• CML-Compatible Data Inputs
• On-Chip 50Ω Input Terminations
• 50Ω Output Impedance
General Description
The VSC7991 is a single 7V supply, 10.7Gb/s Electroabsorption Modulator (EAM)/laser diode driver with
direct access to the laser modulation FETs. Laser offset and modulation currents are set by external components
allowing precision monitoring and setting of the voltage levels. Data inputs are differentially terminated to 50Ω.
Applications
• SONET/SDH @ 2.488Gb/s, 9.952Gb/s, 10.7Gb/s
VSC7991 Block Diagram
50Ω⁽¹⁾
DIN
NDIN
50Ω⁽¹⁾
Note: (1) On-die components.
DCC
VIP
60Ω⁽¹⁾
60Ω⁽¹⁾
300Ω⁽¹⁾
IMOD
NDOUT
DOUT
300Ω⁽¹⁾
IB
IBN
IP
G52321-0, Rev 2.3
02/26/01
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Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
Internet: www.vitesse.com
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