VITESSE
SEMICONDUCTOR CORPORATION
Preliminary Data Sheet
VSC7958
Features
• 2.5Gb/s Data Rates (OC-48/SDH-16)
• Input Offset Error Cancellation
• Single 5V Power Supply
• Fully Differential Architecture
2.5Gb/s High Speed Limiting Post Amplifier
for OC-48/SDH-16 Applications
General Description
The Vitesse high speed limiting amplifier is intended for use as a post amplifier in wide band fiber optic
links with data rates up to 2.5Gb/s. This amplifier provides very high sensitivity and broadband operation with a
fully differential architecture. Additional features include on-chip, offset-correction circuitry to provide excel-
lent pulse width distortion characteristics.
VSC7958 Block Diagram
VBR
VSS
GND
VREF-
50
VIN-
VIN+
50
VREF+
Chip Boundary
VOUT-
A1
A2
VOUT+
-
+
VBF
VBS
G52184-0, Rev 3.0
05/14/01
©
VITESSE
SEMICONDUCTOR CORPORATION
• 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
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