VSC7990(2001) Ver la hoja de datos (PDF) - Vitesse Semiconductor
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Fabricante
VSC7990 Datasheet PDF : 10 Pages
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SONET/SDH 10.7Gb/s
Laser Diode Driver
VITESSE
SEMICONDUCTOR CORPORATION
Advance Product Information
VSC7990
AC Characteristics (Over recommended operating conditions)
Table 1: High-Speed Inputs and ECL Outputs
Symbol
VIN
VIN
Parameter
Single-ended Input Voltage Swing
On-Chip Terminations
Min Typ Max Units
Conditions
400
1000 mVp-p VCM = −3.7V
35
65
Ω
Table 2: Laser Driver AC Electrical Specifications
Symbol
Parameter
tR, tF
tSU
tH
Output Rise and Fall Times
Data to Clock Setup Time
Hold Time
Min Typ Max Units
Conditions
35
TBD
ps
RL = 25Ω, 20% to 80%,
20mA < IMOD < 100mA
ps
TBD
ps
DC Characteristics (Over recommended operating conditions)
Table 3: Power Dissipation
Symbol
IVSS
PD
Parameter
Power Supply Current (VSS)
Total Power Dissipation
Min Typ Max Units
Conditions
150
mA VSS = −5.5V, IMOD = IBIAS = 0mA
800
mW VSS = −5.5V, IMOD = IBIAS = 0mA
Table 4: Laser Driver DC Electrical Specifications
Symbol
IBIAS
IMOD
VIB
VIP
VOCM
Parameter
Programmable Laser Bias Current
Programmable Modulation Current
Laser Bias Control Voltage
Laser Modulation Control Voltage
Output Voltage Compliance
Min
Typ
Max Units
2
100
mA
1
100
mA
VSS+2.1V
V
VSS+2.1V
V
GND −3V
V
Conditions
IBIAS = 60mA
IMOD= 100mA
VSS = −5.2V
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© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com
Internet: www.vitesse.com
G52303-0, Rev 2.2
04/05/01
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