Panasonic GN8062 Gaas ic Datasheet

GN8062
GaAs MMICs
GN8062
GaAs IC
Unit : mm
8
High-speed switching
2
7
●
High output
3
6
Pulse current and DC bias current can be controlled.
4
5
●
0.7min.
6.4±0.2
4.5max. 4.0max.
1.3typ.
1
●
10max.
2.54±0.25
■ Features
0.5
For semiconductor laser drive
■ Absolute Maximum Ratings (Ta = 25˚C)
Parameter
Symbol
Power supply voltage
Pin voltage
Rating
VDD
6
V
VSS
–6
V
VIN
– 0.5 to VDD–1.5
V
1.5 to VDD
V
VDD
V
VIp
*5
IDD
*4
50
mA
ISS
40
mA
Output current
IOUT
145
mA
Allowable power dissipation
PD* 2
700
mW
Channel temperature
Tch
150
˚C
Storage temperature
Tstg
– 55 to +150
˚C
–10 to +75
˚C
Operating ambient temperature
*1
*2
*3
*4
*5
Topr
7.62±0.2
0 to 15˚
VOUT* 1
Power current
1 : GND
2 : NC
3 : NC
0.35max.
4 : OUT
5 : VIP
6 : VDD
7 : VIN
8 : VSS
8-Lead Plastic DIL Package
Unit
*3
Do not apply the voltage higher than the set VDD.
Guaranteed value of the unit at Ta= 25˚C.
Range in which the IC circuit function operates and not the guaranteed range of
electric characteristics.
IDD is a current when the pulse output current is zero.
Voltage when the constant current source has been connected.
■ Electrical Characteristics (Ta = 25˚C)
Parameter
Pulse output current
Supply current
Input voltage
Symbol
Test circuit
Ipmax.
1
Condition
VDD= 5V, VSS= –5V, VIN= 2V, I p=120mA, RL=10Ω
Min
Typ
100
120
Max
Unit
mA
Ipmin.
1
VDD = 5V, VSS= –5V, VIN= 0.4V, Ip=120mA, RL=10Ω
1
5
IDD* 1
2
VDD= 5V, VSS= – 5V, VIN= 0.4V
35
50
mA
ISS
2
Ip= 0, RL=10Ω
25
40
mA
VIH
2.5
VIL
mA
V
0.4
V
Rise time
tr* 2
3
VDD= 5V, VSS= – 5V, I p=100mA
7
ns
Fall time
tf* 2
3
RL=10Ω
5
ns
GN8062
GaAs MMICs
*1
The current value to be supplied from the 5V power supply is a total sum of this value plus the pulse output current and bias output current.
*2
Waveform of input and output signals
Input signal
Output waveform
2µS
90%
10µS
2.5V min.
10%
0.4V max.
tr
*
tr ··· 10% to 90%
tf ··· 90% to 10%
Test circuit 1
Test circuit 2
VIN
0.4V
5V
C1
+
–
C2
–5V
C1
tf
The rise/fall time of the input signal
is 2ns (10 to 90%)
–
+ C2
–5V
C1
–
+ C2
+
–
C2
A
A
IP=0mA
IP=120mA
8
7
6
5
8
7
6
5
1
2
3
4
1
2
3
4
RL
A
RL
+ 5V
– C2
C1
C1
Test circuit 3
PULSE
GENERATOR
–5V
C1
5V
C1
R2
+
–
C2
–
+ C2
5V
C1
IP=100mA
8
7
6
5
1
2
3
4
R1
C1
FET PROBE
+ 5V
– C2
C1 : 0.1µF
C2 : 3.3µF
R1 : 10Ω
R2 : 50Ω
+ 5V
– C2
GN8062
GaAs MMICs
■ Block Diagram
INSIDE GN8062
OUTSIDE GN8062
VDD
VIN
+5V
VSS
LASER DIODE
VSS
VDD
OUT
VSS
VSS
GND
1
8
VSS
NC
2
7
VIN
NC
3
6
VDD
OUT
4
5
VIP
VIP
from CONTROL
CIRCUIT
■ Caution for Handling
1) The recommended VIN voltage is 2.5 to 3V for [H] and
0 to 0.4V for [L].
2) Do not apply VIN while the power supply is OFF.
3) For the current source to be connected to the V IP pin,
use a Si bipolar transistor as shown in the circuit diagram.
(Example: 2SD874)
To connect a resistor to the emitter or collector, use a
resistor of a few ohm. The use of higher resistor may
cause large change in the voltage at the V IP pin, and
may make the output waveform distortion. (See the pulse
output current control example).
To use another current control circuit, set so that the VIP
pin voltage becomes around 2V.
4) When mounting, minimize the connection distance between the semiconductor laser and IC, and use the chip
parts (C, R) of less parasitic effects.
5) Attention to damage by the power surge (see the example connection of the pin protection circuit).
During handling, take care to ground the human body
and solder iron tip.
6) When the power supply is turned ON and OFF, set the
current value of the current source connected to the VIP
pin to zero. This is important to prevent the large current flow through the semiconductor laser during power
ON/OFF.
When the power supply is ON, be sure to turn ON VDD,
after VSS is completely equal to – 5V. When the power
supply is OFF, be sure to turn OFF VSS, after VDD is
completely 0V.
7) Pay attention to release the heat.
MA3068(VZ=6.8V,Cd=85pF,RZ=6Ω)
GN8062
–5.0V
GND VSS
NC
VIN
NC
VDD
200Ω to 2kΩ
5.0V
50Ω
OUT VIP
Connection example of pin protection circuit
GN8062
GND VSS
NC
VIN
NC
VDD
OUT VIP
–
+
I COLLECTOR
IB
0.22mF
5Ω
VEE=–5 to 0V
Example of pulse output current control circuit
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