vsc7928 Vitesse Semiconductor Corp, vsc7928 Datasheet - Page 3

• Manufacturer Part Number: vsc7928
• Description: Sonet/sdh 3.2gb/s Laser Diode Driver
• Manufacturer: Vitesse Semiconductor Corp

Preliminary Data Sheet
VSC7928
G52246-0, Rev 3.0
04/05/01
Table 5: High Speed Inputs and ECL Outputs
Table 6: Power Dissipation
Table 7: Laser Driver DC Electrical Specifications
Table 8: Laser Driver AC Electrical Specifications
Symbol
I
I
V
V
V
Symbol
I
P
Symbol
t
t
t
Symbol
V
V
V
V
V
BIAS
MOD
VSS
R
SU
H
D
IB
IP
OCM
IN
CM
OH
OL
IN
, t
F
Power Supply Current (VSS)
Total Power Dissipation
Programmable Laser Bias Current
Programmable Modulation Current
Laser Bias Control Voltage
Laser Modulation Control Voltage
Output Voltage Compliance
Single-ended Input Voltage Swing
Differential Input Common Mode Range
ECL Output High Voltage
ECL Output Low Voltage
On-Chip Terminations
Output Rise and Fall Times
Data to Clock Setup Time
Hold Time
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Parameter
Parameter
Parameter
Parameter
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
VITESSE
SEMICONDUCTOR CORPORATION
Internet: www.vitesse.com
Min
Min
Min
—
—
—
—
—
-1200
2
2
—
—
20
Min
-2.3
300
—
35
GND -
Typ
Typ
80
—
3V
Typ
—
—
—
—
—
50
50
Typ
—
—
—
—
—
SONET/SDH 3.2Gb/s Laser Diode Driver
Max
V
V
Max
120
700
Max
100
100
2.1
2.1
SS
SS
—
100
-1600
90
—
Max
1500
-1.3
—
65
+
+
Units
Units
mW
mA
Units
mA
mA
mVp-p
V
V
V
Units
ps
ps
ps
mV
mV
V
V
0mA, MK/NMK open circuit
V
0mA, R
MK/NMK terminated 50 to -2V
I
I
V
BIAS
MOD
SS
SS
25 load, 20%-80%,
20mA < I
I
—
—
SS
BIAS
V
V
50 to -2.0V
50 to -2.0V
= -5.5V, I
= -5.5V, I
= -5.2V
CM
SS
= 60mA
= 50mA
LOAD
= 60mA
= -5.2V
= -2.0V
Conditions
Conditions
Conditions
MOD
Conditions
= 25 to GND,
MOD
MOD
< 60mA,
= I
= I
BIAS
BIAS
=
=
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