F0510203B 1.5Gbps Laser Diode Driver With Input Bias Circuit
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Features Gbps high speed operation single power supply modulation current bias current Maximum bias current preset control
F0510203B
1.5Gbps Laser Diode Driver
With Input Bias Circuit
Applications Laser diode driver optical transmitter circuit (STM4)
Functional Description F0510203B high performance GaAs integrated laser diode driver optical transmitter circuit Gbps data rate. F0510203B typically specifies rise time fall time psec (20% 80%). features single supply operation, presettable bias current modulation current.
F0510203B
Absolute Maximum Ratings
1.5Gbps Laser Diode Driver
unless specified
Parameter Supply Voltage Input Voltage Output Voltage Modulation Current Control Voltage Maximum Bias Current Setting Voltage Storage Temparature Ambient Operating Temparature Symbol VIN1, VIN2 VOUT1, VOUT2 Tstg Value VDD- VDD+0.5 VDD+0.5 VDD+0.5 VSS+1.3 VSS+1.7 +125
Units
Recommended Operating Conditions VDD=
Value Min. Supply Voltage Ambient Operating Temparature VDD-5.25 Typ. VDD-5 Max. VDD-4.75
Parameter
Symbol
Units
1.5Gbps Laser Diode Driver
Electrical Characteristics
F0510203B
5.25 -4.75 =GND unless specified
Value Parameter Circuit Current Input Voltage Input Current Modulation Current Bias Current Bias Current Setting Voltage(IM=20mA) LEAK Current Rise Time Fall Time Symbol IIN1,IIN2 IMMAX IBMAX VM20 ILEAK VIN1 VIN2 =-1.8V =VSS+1.3V, =25° =VSS+1.7V, =25° IM=20mA, VSS=-5V Ta=25° VM=VSS +0.01V VB=VSS +0.1V TestConditions Min. =VB=VSS without IM,IB Differential Mode -1.8 VSS+0.73 -1.6 VSS+0.92 -1.0 Typ. Max. -0.8 Units
F0510203B
Block Diagram
1.5Gbps Laser Diode Driver
VINR VINB VINBR
OUTB
OUTBIAS
VSSM
VSSB
Description
VINR VINB VINBR VSSM VSSB OUTB OUTBIAS Input Bias Voltage Input Input Bias Voltage Input Supply Voltage Supply Voltage Supply Voltage Modulation Current control Bias Current Control Output Output Bias Current Laser
1.5Gbps Laser Diode Driver
Assignments
F0510203B
(11)
(10)
(12)
(13)
Symbol VINR OUTBIAS VSSB VSSM OUTB
Center Coordinates(µm) (184,80) (470,80) (680,80) (880,80) (1180,80) (1310,305) (1310,585) (1180,810) (680,810)
(10) (11) (12) (13)
Symbol VINBR VINB
Center Coordinates(µm) (470,810) (184,810) (80,585) (80,305) (0,0) (1390,890)
F0510203B
Test Circuits
1.5Gbps Laser Diode Driver
Source/ Monitor Unit
OUTB OUTBIAS VIN1
Source/ Monitor Unit
VIN2
VSSB VSSM
Probing System with Temp. chuck
1.5Gbps Laser Diode Driver
Typical Characteristics (1)Switching Characteristics
F0510203B
(mA)
Modulation Current IM(mA)
80.00
8.000 /div
.0000 -1.800
.1000/div Input Voltage VIN1(V) (VSS=-5.0V, =-3.7V)
-8.000
(2)Modulation Current Control
(mA)
Modulation Current IM(mA)
80.00
8.000 /div
.0000 -5.000
.1500/div Control Voltage VM(V)
-3.500
(VSS=-5.0V, VIN1 =-1.7V, VIN2 =-0.9V)
F0510203B
(3)Bias Current Control
1.5Gbps Laser Diode Driver
(mA)
Modulation Current IM(mA)
80.00
8.000 /div
.0000 -5.000
.2000/div Control Voltage VB(V)
-3.000
(VSS=-5.0V, VIN1 VIN2 connect)
Electron Device Department
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