VSC7937KJL 查看數據表（PDF） - Vitesse Semiconductor

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VSC7937KJL

Single Supply 2.5Gb/s Voltage Driver

Vitesse Semiconductor 

VITESSE

SEMICONDUCTOR CORPORATION

Preliminary Data Sheet

VSC7937

Single Supply 2.5Gb/s Voltage Driver

Features

• Typical Rise Times of 100ps

• High-Speed Operation

(Up to 2.5Gb/s NRZ Data)

• 3V Output Voltage Compliance

• Single-Ended or Differential Input Operation

• Single Power Supply: +5V or -5.2V

• Direct Access to Modulation and Bias FETs

• On-Die MUX for Clocked or Unclocked

Applications

• On-Chip 50Ω Input Clock and Data Termination

Applications

• SONET/SDH @ 622Mb/s, 1.244Gb/s, 2.488Gb/s

• Full-Speed Fibre Channel (1.062Gb/s)

General Description

The VSC7937 is a single -5.2V supply, 2.5Gb/s voltage driver with direct access to the output modulation

and bias FETs. The output stage can drive 60mA into 50Ω with adequate output voltage compliance. Output

bias and modulation currents are set by external components allowing precision monitoring and setting of the

output voltage levels.

VSC7937 Block Diagram

NOUT OUT

INOUT

DIN

DINTERM*

NDIN

CLK

CLKTERM*

NCLK

50 Ω**

50 Ω**

50 Ω**

50 Ω**

*Terminated to Off-chip Capacitor

**On Die Components

M

DQ

U

X

VIP

VIB2

SELSEL

IBIAS2

IMOD

IBIAS1

MIB2

MIP

MIB1

VIB1

G52200-0, Rev 3.0

03/05/01

© 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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