CGY181 Siemens Semiconductor Group, CGY181 Datasheet - Page 2

• Manufacturer Part Number: CGY181
• Description: GaAs MMIC (Power amplifier for PCN/PCS applications Fully integrated 2 stage amplifier)
• Manufacturer: Siemens Semiconductor Group

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Functional block diagramm:
connected (shut off mode).
DC characteristics
Characteristics
Drain current
Drain current with
active current control
Transconductance
Pinch off voltage
Siemens Aktiengesellschaft
3,4,5,10
(stage 1 and 2)
VTR (2)
Pin (8)
Pin #
6,9
11
12
1
2
7
8
Control
Circuit
VD2,RFout
stage 1 IDSS1
stage 2 IDSS2
GND 2
GND 1
VG (1)
RFin
VTR
VD1
VG
-
Symbol Conditions
ID
gfs1
gfs2
Vp
VD1 (7)
GND1 (6,9)
Configuration
Negative voltage at control circuit (-4V...-8V)
Control voltage for transmit mode (0V) or receive mode (open)
RF and DC ground of the 2nd stage
RF and DC ground of the 1st stage
Positive drain voltage of the 1st stage
RF input power
Positive drain voltage of the 2nd stage, RF output power
not connected
GaAs MMIC
VD=3V, VG=0V, VTR n.c.
VD=3V, VG=-4V, VTR=0V
VD=3V, ID=350mA
VD=3V, ID=700mA
VD=3V, ID<500 A
(all stages)
GND2
(3, 4, 5, 10)
VD2 (11)
pg. 2/14
Pout (11)
Short description of CGY181
operation:
A negative voltage between -4V to -6V
(stabilization not necessary) has to be
connected to the VG-pin, a positive
supply voltage has to be applied to the
VD-pins.
The VTR-pin has to switched to 0V
(GND) during transmit operation. The
MMIC CGY181 is self-biased, the
operating current is adjusted by the
internal control circuit.
In receive mode the VTR-pin is not
min
0.28
-3.8
0.6
1.1
2.4
0.32
typ
-2.8
0.9
3.5
1.0
1.3
CGY 181
HL EH PD 21
max
-1.8
1.2
4.8
-
-
01.02.96
Unit
A
A
A
S
S
V