Siemens CGY94 Datasheet
GaAs MMIC CGY 94
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Preliminary Datasheet
* Power amplifier for GSM or AMPS application
* Fully integrated 2 stage amplifier
* Operating voltage range: 2.7 to 6 V
* 2 W output power at 3.6 V
* Overall power added efficiency 46 %
* Input matched to 50 Ω, simple output match
ESD: Electrostatic discharge sensitive device,
observe handling precautions!
Type Marking Ordering code
(taped)
Package 1)
CGY 94 CGY 94 Q68000-A9124 MW 12
Maximum ratings
Characteristics Symbol max. Value Unit
Positive supply voltage V
Negative supply voltage 2)V
Supply current
Channel temperature
Storage temperature
Pulse peak power dissipation
duty cycle 12.5%, ton=0.577ms
Total power dissipation
Ts: Temperature at soldering point
(Ts ≤ 81 °C)
D
G
I
D
T
Ch
T
stg
P
Pulse
P
tot
9V
-8 V
2A
150 °C
-55...+150 °C
9W
5W
Thermal Resistance
Channel-soldering point
1) Plastic body identical to SOT 223,
= -8V only in combination with V
2) V
G
Siemens Aktiengesellschaft pg. 1/9 17.10.95
HL EH PD 21
dimensions see chapter Package Outlines
= 0V; VG = -6V while V
TR
R
thChS
TR
≠ 0V
≤14
K/W
GaAs MMIC CGY 94
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Functional block diagram:
Control circuit:
VTR (2)
Pin (8)
Control
Circuit
VD1 (7) VD2 (12)VG (1)
Pout (12)
The drain current ID of the CGY 94 is
adjusted by the internal control circuit.
Therefore a negative voltage (-4V...-6V)
has to be supplied at VG. For transmit
operation VTR must be set to 0V. During
receive operation VTR should be dis-
connected (shut off mode).
GND1 (6, 9) GND2
(3, 4, 5, 10)
GND3 (11)
Pin # Configuration
1
2
3,4,5,10
6,9
7
8
11
12
VG
VTR
GND 2
GND 1
VD1
RFin
GND 3
VD2, RFout
Negative voltage at control circuit (-4V...-6V)
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
Ground for internal output matching
Positive drain voltage of the 2nd stage, RF output power
DC characteristics
Characteristics Symbol Conditions min typ max Unit
Drain current stage 1
stage 2
Drain current with
IDSS1
IDSS2
ID
VD=3V, VG=0V, VTR n.c. 0.6 0.9 1.3 A
2.7 4.1 5.9 A
VD=3V, VG=-4V, VTR=0V - 1.1 - A
active current control
Transconductance
(stage 1 and 2)
Pinch off voltage
gfs1
gfs2
Vp
VD=3V, ID=350mA 0.25 0.32 - S
VD=3V, ID=700mA 1.1 1.3 - S
VD=3V, ID<500µA
-3.8 -2.8 -1.8 V
(all stages)
Siemens Aktiengesellschaft pg. 2/9 17.10.95
HL EH PD 21
GaAs MMIC CGY 94
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Electrical characteristics
(TA = 25°C , f=0.9 GHz, ZS=ZL=50 Ohm, VD=3.6V, VG=-4V, VTR pin connected to
ground, unless otherwise specified; pulsed with a duty cycle of 10%, ton=0.33ms)
Characteristics Symbol min typ max Unit
Supply current
VD=3.0V; Pin=10dBm
Negative supply current
(normal operation)
Shut-off current
VTR n.c.
Negative supply current
(shut off mode, VTR pin n.c.)
Gain
Pin=-5dBm
Power gain
VD=3.6V; Pin=10dBm
Output Power
VD=3.0V; Pin=10dBm
Output Power
VD=3.6V; Pin=10dBm
Output Power
VD=5V; Pin=10dBm
Overall Power added Efficiency
VD=3.0V; Pin=10dBm
Overall Power added Efficiency
VD=3.6V; Pin=10dBm
Overall Power added Efficiency
VD=5V; Pin=10dBm
Harmonics
VD=3.6V; (P
Input VSWR
(Pin=10dBm, CW)
=33.1dBm)
out
VD=3.6V;
3f
2f
I
DD
I
G
I
D
I
G
G
G
P
o
P
o
P
o
η
η
η
0
0
-
-
- 1.18 - A
-2-mA
- 400 -
-10-
µ
A
µ
A
27.0 29.0 - dB
22.8 23.6 - dB
31.5 32.3 - dBm
32.8 33.6 - dBm
34.5 35.5 - dBm
43 48 - %
42 47 - %
41 46 - %
-
-
-49
-45
-
-
dBc
dBc
- - 1.5 : 1 2.0 : 1 -
Siemens Aktiengesellschaft pg. 3/9 17.10.95
HL EH PD 21
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