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VSC7927RA-T

Description
Interface Circuit, PQFP32, HEAT SINK, PLASTIC, TQFP-32
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size334KB,18 Pages
ManufacturerVitesse Semiconductor Corporation
Websitehttp://www.vitesse.com/
Download Datasheet Parametric Compare View All

VSC7927RA-T Overview

Interface Circuit, PQFP32, HEAT SINK, PLASTIC, TQFP-32

VSC7927RA-T Parametric

Parameter NameAttribute value
MakerVitesse Semiconductor Corporation
Parts packaging codeQFP
package instructionHLQFP,
Contacts32
Reach Compliance Codecompliant
Interface integrated circuit typeINTERFACE CIRCUIT
JESD-30 codeS-PQFP-G32
length7 mm
Nominal negative supply voltage-5.2 V
Number of functions1
Number of terminals32
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeHLQFP
Package shapeSQUARE
Package formFLATPACK, HEAT SINK/SLUG, LOW PROFILE
Certification statusNot Qualified
Maximum seat height1.6 mm
Nominal supply voltage5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationQUAD
width7 mm
VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7927
Features
• Rise Times Less Than 100ps
• High Speed Operation
(Up to 2.5 Gb/s NRZ Data)
• Differential or Single-Ended Inputs
• Single Supply
• ECL Compatible Clock and Data Inputs
SDH/SONET 2.5Gb/s
Laser Diode Driver
• Direct Access to Modulation and Bias FET’s
• Data Density Monitors
• On-chip Reclocking Register
• On-chip Mux for Clocked or Non-clocked
Applications
• On-chip 50 Ohm Input Termination: Clock
and Data
Introduction
The VSC7927 is a single 5V supply, 2.5 Gb/s laser diode driver with direct access to the laser modulation
and bias FET’s. Laser bias and modulation currents are set by external components allowing precision monitor-
ing and setting of the current levels. Data density outputs are provided to allow the user to adjust the laser bias in
high unbalanced data applications. Clock and data inputs are differentially terminated to 50 Ohms.
Applications
• SDH/SONET @ 622Mb/s, 1.244Gb/s, 2.488Gb/s
• Full Speed Fibre Channel (1.062Gb/s)
VSC7927 Block Diagram
MK
NMK
IOUT
NIOUT
DIN
50
**
DINTERM*
50
**
NDIN
D Q
M
U
X
IBIAS
DCC
CLK
50
**
CLKTERM*
50
**
NCLK
SEL
MIP
*Terminated to Off-chip Capacitor
**On Die Components
VIB
VIP
I
MOD
I
BIAS
MIB
G52201-0, Rev 2.2
10/13/99
©
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896
Page 1

VSC7927RA-T Related Products

VSC7927RA-T VSC7927CA-T VSC7927CAL-T
Description Interface Circuit, PQFP32, HEAT SINK, PLASTIC, TQFP-32 Interface Circuit, MQFP24, Interface Circuit, MQFP24,
Maker Vitesse Semiconductor Corporation Vitesse Semiconductor Corporation Vitesse Semiconductor Corporation
package instruction HLQFP, QFF, QFP,
Reach Compliance Code compliant compliant compliant
Interface integrated circuit type INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT
JESD-30 code S-PQFP-G32 S-MQFP-F24 S-MQFP-G24
length 7 mm 7 mm 7 mm
Nominal negative supply voltage -5.2 V -5.2 V -5.2 V
Number of functions 1 1 1
Number of terminals 32 24 24
Maximum operating temperature 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY METAL METAL
encapsulated code HLQFP QFF QFP
Package shape SQUARE SQUARE SQUARE
Package form FLATPACK, HEAT SINK/SLUG, LOW PROFILE FLATPACK FLATPACK
Certification status Not Qualified Not Qualified Not Qualified
Maximum seat height 1.6 mm 2.08 mm 2.08 mm
Nominal supply voltage 5 V 5 V 5 V
surface mount YES YES YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form GULL WING FLAT GULL WING
Terminal pitch 0.8 mm 0.76 mm 0.76 mm
Terminal location QUAD QUAD QUAD
width 7 mm 7 mm 7 mm
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