Eudyna F0510203B 1.5gbps laser diode driver with input bias circuit Datasheet

01.08.28
F0510203B
♦ Features
• Up to 1.5 Gbps high speed operation
• -5 V single power supply
• Up to 40 mA p-p modulation current
• Up to 50 mA bias current
• Maximum bias current preset control
1.5Gbps Laser Diode Driver
With Input Bias Circuit
♦ Applications
• Laser diode driver of an optical transmitter circuit for
SDH (STM4)
♦ Functional Description
The F0510203B is a high performance GaAs integrated laser diode driver for use in an
optical transmitter circuit up to 1.5 Gbps NRZ data rate. The F0510203B typically specifies
rise time and fall time of 100 psec (20% - 80%). It features single -5 V supply operation, 1 to
50 mA presettable bias current and up to 40 mA modulation current.
F0510203B
1.5Gbps Laser Diode Driver
♦ Absolute Maximum Ratings
Ta = 25 °C, unless specified
Parameter
Symbol
Value
Units
VSS
VDD- 7 to VDD+0.5
V
VIN1, VIN2
VSS to VDD+0.5
V
VOUT1, VOUT2
VSS to VDD+0.5
V
Modulation Current Control Voltage
VM
VSS to VSS+1.3
V
Maximum Bias Current Setting
Voltage
VB
VSS to VSS+1.7
V
Tstg
-55 to +125
°
C
Ta
-40 to +85
°
C
Supply Voltage
Input Voltage
Output Voltage
Storage Temparature
Ambient Operating Temparature
♦ Recommended Operating Conditions
VDD= GND
Parameter
Value
Symbol
Units
Min.
Typ.
Max.
Supply Voltage
VSS
VDD-5.25
VDD-5
VDD-4.75
V
Ambient Operating Temparature
Ta
0
25
85
°C
F0510203B
1.5Gbps Laser Diode Driver
♦ Electrical Characteristics
Ta =0 ~ 85 °C, VSS = - 5.25 ~ -4.75 V, VDD =GND unless specified
Value
Parameter
Circuit Current (1)
Input Voltage
Symbol
ISS
VIH
TestConditions
Typ.
Max.
-
28
40
mA
-1.0
-
-0.8
V
-1.8
-
-1.6
V
VIN1 , VIN2 =-1.8V
-80
-
80
µA
VM =VB=VSS , without IM,IB
Differential Mode
VIL
Input Current
IIN1,IIN2
Units
Min.
Modulation Current
IMMAX
VM =VSS+1.3V, Ta =25° C
40
-
-
mA
Bias Current
IBMAX
VB =VSS+1.7V, Ta =25° C
50
-
-
mA
Bias Current Setting
Voltage(IM=20mA)
VM20
IM=20mA, VSS=-5V
Ta=25° C
VSS+0.73
-
VSS+0.92
V
LEAK Current
ILEAK
VM=VSS +0.01V
VB=VSS +0.1V
-
-
0. 9
mA
Rise Time
tr
RL = 25Ω 20% - 80%
-
100
150
ps
Fall Time
tf
RL = 25Ω 20% - 80%
-
100
150
ps
F0510203B
1.5Gbps Laser Diode Driver
♦ Block Diagram
OUT OUTB
GND
OUTBIAS
VINR
VIN
+
VINB
-
VINBR
VSS
VM
VSSM
♦ Die Pad Description
VIN
Input
VINR
Bias Voltage for Input
VINB
Input
VINBR
Bias Voltage for Input
VSS
Supply Voltage
VSSM
Supply Voltage
VSSB
Supply Voltage
VM
Modulation Current control
VB
Bias Current Control
OUT
Output
OUTB
Output
OUTBIAS
Bias Current for Laser
GND
GND
VSSB
VB
F0510203B
1.5Gbps Laser Diode Driver
♦ Die Pad Assignments
(11)
Symbol
(9)
(8)
(12)
(7)
(13)
(6)
(1)
No.
(10)
(2)
(3)
(5)
(4)
Center Coordinates(µm)
No.
Symbol
Center Coordinates(µm)
(1)
VIN
(184,80)
(10)
VINBR
(470,810)
(2)
VINR
(470,80)
(11)
VINB
(184,810)
(3)
OUT
(680,80)
(12)
VDD
(80,585)
(4)
OUTBIAS
(880,80)
(13)
VSS
(80,305)
(5)
VB
(1180,80)
O
(0,0)
(6)
VSSB
(1310,305)
A
(1390,890)
(7)
VSSM
(1310,585)
(8)
VM
(1180,810)
(9)
OUTB
(680,810)
F0510203B
1.5Gbps Laser Diode Driver
♦ Test Circuits
DC Source/
Monitor Unit
OUT OUTB OUTBIAS
VIN1
VM
VIN2
DUT
VB
VSSB
VM
VSS
VSSM
Probing System with Temp. chuck
DC Source/
Monitor Unit
F0510203B
1.5Gbps Laser Diode Driver
♦ Typical DC Characteristics
(1)Switching Characteristics
Modulation Current IM(mA)
IO (mA)
80.00
8.000
/div
.0000
-1.800
.1000/div
(v)
-8.000
Input Voltage VIN1(V)
(VSS=-5.0V, VM =-3.7V)
(2)Modulation Current Control
Modulation Current IM(mA)
IO (mA)
80.00
8.000
/div
.0000
-5.000
.1500/div
(v)
Control Voltage VM(V)
(VSS=-5.0V, VIN1 =-1.7V, VIN2 =-0.9V)
-3.500
F0510203B
1.5Gbps Laser Diode Driver
(3)Bias Current Control
Modulation Current IM(mA)
IO (mA)
80.00
8.000
/div
.0000
-5.000
.2000/div
(v)
-3.000
Control Voltage VB(V)
(VSS=-5.0V, VIN1 , VIN2 , VM : no connect)
Electron Device Department
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