EUDYNA F0601720B

01.08.28
F0601720B
♦ Features
• high speed operation DC ~ 266 Mb/s NRZ
• Differential ECL compatible interface
• 5.0 V single power supply
• Pulse distortion control 0 ~ 350 psec
High Speed
GaAs LED Driver
♦ Applications
• LED driver of an optical transmitter circuit up to
266 Mb/s
♦ Functional Description
The F0601720B is a high performance GaAs LED driver IC applying in an optical transmitter module up to 266 Mb/s NRZ data rate. The F0601720B specifies the rise time and the
fall time of 600 psec (10%-90%) typically. It features the single 5.0 V supply operation.
F0601720B
GaAs LED Driver IC
♦ Absolute Maximum Ratings
Ta=25 °C, unless specified
Parameter
Symbol
Absolute Maximum Ratings
Units
Supply Voltage
VCC
7.0
V
Supply Current
ICC
100
mA
Modulation Current
IOUT1,2
100
mA
Power Dissipation
Pdis
1
W
VIN1,2
VCC ~ Max (-0.5, VCC -3.0)
V
Ta
0 ~ 70
°C
Tstg
-55 ~ +125
°C
Input Voltage
Ambient Operating Temperature
Strage Temperature
♦ Recommended Operating Conditions
VEE= GND
Parameter
Min.
Value
Typ.
Max.
Units
VCC
4.75
5.0
5.25
V
Ta
0
25
70
°C
Symbol
Supply Voltage
Ambient Operating Temperature
F0601720B
GaAs LED Driver IC
♦ Electrical Characteristics
VCC=5 V, Ta=25 °C, unless specified
Value
Parameter
Supply Current
Input Voltage
Symbol
Conditions
Typ.
Max.
90
100
150
mA
3.830
4.045
4.265
V
3.050
3.295
3.550
V
-
-150
-
150
µA
Tr1:open
40
-
60
mA
Tr2=GND
60
-
80
mA
-
-
5
µΑ
Tr1:open
3.8
-
4.1
V
Tr2=GND
3.45
-
3.75
V
ICC
VIH
Differential Input
VIL
Input Current
Modulation Current *1)
Units
Min.
IIN1, IIN2
IOUT1
Leakage Current
Isdleak1
ECL Reference Voltage
VDD *1)
Vsd1=VCC at VIN1=VIL,
VIN2=VI
Rise Time
tr
*2)
RL=15Ω
-
-
1
nsec
Fall Time
rf *2)
RL=15Ω
-
-
1
nsec
*1) Adjusting by valuable resistors
*2) Measuring by the circuits shown in Figures 3 and 4
F0601720B
GaAs LED Driver IC
♦ User’s Guide
(1) Application of Dly1 and Dly2
The two terminals permit presettable compensation of pulse width distortion at input signals In1 and In2 by connecting to GND as shown in Table2.
Table 1.
Dly1
Presetting
open
GND
open
1ps
150ps
GND
250ps
350ps
Dly2
(2) Application of Tr1
The Tr1 terminal permits presettable voltage at Vbb by adjusting the valuable resistor (0
to 1kΩ) connected with GND as shown in Table2.
Table 2.
Terminal
Without control
With control
Tr1
open
0 ~ 1kΩ
Vbb
3.8V ~ 4.1V
3.72V (Recommended setting voltage)
F0601720B
GaAs LED Driver IC
♦ Block Diagram
GND
VCC
Sd1 OUT1 OUT2 Sd2
IN1
INBUF
BUFFER
IN2
A
OUTBUF
DELAY1
DELAY2
B
PREDISTORTION
BUFFER
FOR
OUTBUF
Vref
DELAY CONTROL
GND
Temp
Dly1
VCC
VIN1, VIN2
OUT1, OUT2
Sd1,Sd2
Dly1,Dly2
Tr1
Tr2
VDD
Temp
Dly2
Tr1 Tr2
VDD
: Supply Voltage
: Differential Input
: Differential Output (LED should be connected to Out1)
: Output Wave Form Control
: Pulse Width Distortion Control
: Vbb Control
: Testing
: ECL Reference Voltage
: Temperature Measurement
Fig. 1
F0601720B
GaAs LED Driver IC
♦ Die Pad Descriptions
(13)
(12)
(11)
(10)
(14)
(9)
(15)
(16)
(7)
(17)
(6)
(1)
No.
Symbol
(8)
(2)
(3)
Center Coordinates (µm)
(4)
No.
(5)
Symbol
Center Coordinates (µm)
1
Sd1
(80,80)
11
VIN
(480,1310)
2
OUT1
(260,80)
12
Temp
(295,1310)
3
GND2
(445,80)
13
VDD
(115,1310)
4
OUT2
(630,80)
14
GND1
(80,1130)
5
Sd2
(810,80)
15
GND1
(80,950)
6
VCC2
(810,590)
16
Tr2
(80,770)
7
VCC1
(810,770)
17
Tr1
(80,590)
8
Dly2
(810,950)
O
(0,0)
9
Dly1
(810,1130)
A
(890,1390)
10
VIN2
(810,1310)
F0601720B
GaAs LED Driver IC
♦ Measurement Block DIiagram
(1) DC Characteristics
+5.0V
330pF
15Ω
VCC
15Ω
Sd1
OUT1
VIN1
OUT2
DC Power
Source &
Monitor
VIN2
VDD
DC Power
Source &
Monitor
Tr1
Dly1
Tr2
Dly2
Vee(GND)
Sd2
(2) AC Characteristics
51Ω
22Ω
Trig.
Pulse
Pattern
Generator
VIN1
VCC
(GND)
Sd1
OUT1
Sampling
Oscilloscope
OUT2
VIN2
VDD
DC Power
Source &
Monitor
Vee
0.1µF
-0.5V
Sd2
GaAs LED Driver IC
F0601720B
♦ Precautions
Owing to their small dimensions, the GaAs FET’s from which the F0601720B is designed
are easily damaged or destroyed if subjected to large transient voltages. Such transients
can be generated by power supplies when switched on if not properly decoupled. It is also
possible to induce spikes from static-electricity-charged operations or ungrounded equipment.
Electron Device Department