GaAs MMIC
l
Dual mode power amplifier for CDMA /TDMA
portable cellular phones
l
29 dBm linear output power@ PAE=40% typ.
l
Fully integrated 2 stage amplifier
l
Power ramp control
l
Input matched to 50 ohms, simple output match
ESD: Electrostatic discharge sensitive device,
observe handling precautions!
CGY 191
Type Marking Ordering code
Package
(taped)
CGY 191 CGY 191 Q62702G74 MW 16
Maximum ratings
Characteristics Symbol max. Value Unit
Positive supply voltage V
Supply current
Channel temperature
Storage temperature
Pulse peak power dissipation
Total power dissipation
(Ts ≤ 80 °C)
T
T
P
Pulse
P
Ts: Temperature at soldering point
D
I
D
Ch
stg
tot
9V
4A
150 °C
-55...+150 °C
tbd W
tbd W
Thermal Resistance
Characteristics Symbol max. Value Unit
Channel-soldering point
Siemens Aktiengesellschaft 1 23.07.1998
Semiconductor Group 1 1998-11-01
HL HF PE GaAs 1/Fo
R
thChS
11 K/W
Functional Block Diagram:
Pin Configuration:
CGY 191
Pin # Configuration
1n. c.
2n. c.
3 Vcon Control voltage
4 Vneg Negative voltage
5n. c.
6 RF IN RF IN PCS Band
7n. c.
8 VD 1 Drain voltage preamplifier stage
9n. c.
10 n. c.
11 RF out RF out / drain voltage final stage
12 RF out RF out / drain voltage final stage
13 RF out RF out / drain voltage final stage
14 RF out RF out / drain voltage final stage
15 n. c.
16 n. c.
Siemens Aktiengesellschaft 2 23.07.1998
Semiconductor Group 2 1998-11-01
HL HF PE GaAs 1/Fo
CGY 191
Electrical Characteristics
(TA = 25°C , ZS=ZL=50 Ohm, VD=3.5V, IDq=300mA, unless otherwise specified )
Characteristics Symbol min typ max Unit
Frequency range
Duty cycle
TDMA output power
tON/t
f
P
OFF
1850 1910 MHz
100 %
29 dBm
TDMA gain at max. output G 24 dB
CDMA output power P 29 dBm
CDMA gain at max. output G 24 dB
Power ramping characte ristic
Full output power
Pinch off
Adjacent Channel Power CDMA
1.25 MHz offset (PCS band)
1.98 MHz offset
Adjacent channel power TDMA
adjacent
alternate
2nd alternate
V
contr
P
adj/Pmain
P
adj/Pmain
2.5
0.5
-45
-54
-28
-45
-45
V
dBc @
30kHz
dBc @
30kHz
TDMA DC to RF efficiency
@Padj=-26dBc
at max. output
CDMA DC to RF efficiency
@Padj=-42dBc
at max. output
at 10 dBm output power
Receive band noise power density
( 1930 to 1990 MHz )
PAE
PAE
P
RX
%
40
%
40
4
dBm/Hz
-145
DC supply voltage range VD 2.9 3.5 4.0 V
Negative supply voltage range Vneg -5.0 -7.0 V
Standby current @Vcon=0V I
Siemens Aktiengesellschaft 3 23.07.1998
Semiconductor Group 3 1998-11-01
HL HF PE GaAs 1/Fo
pwr dwn
500
µA
CGY 191
Characteristics Symbol min typ max Unit
Quiescent current 300 mA
Current consumption at V
Current consumption at V
Contr
NEG
Operating temperature range
I
Control
I
NEG
υ
Power on sequence:
1. connect negative voltage to PA
2. connect control voltage to PA
3. turn on Vd
4. turn on Pin
To switch off the device please use reverse sequence.
Application Circuit:
IC1
2mA
2mA
-30 +85 °C
Vcon
RFin
Vd
Vaux
CLK
1
1
C
C10
100p
C1
10n
n
0
1
1
NC1
2
NC2
3
Vcon
4
Vneg
5
NC5
6
RFin
7
NC7
8
VD1
H
3
n
L
3
3
0
3
u
C
1
VD2/RFout4
VD2/RFout3
VD2/RFout2
VD2/RFout1
GND (backside MW16)
17
0
4
u
C
1
16
NC16
15
NC15
14
13
12
11
10
NC10
9
NC9
CGY191
0
5
u
C
1
C9
Q
8
H
9
p
3
100p
C
H
2
n
L
3
3
0
6
u
C
1
p
7
0
0
C
1
RFout
C15
2
n
1
3
3
C
C13
9
1
k
R
3
V2
1n0
R
2
0
R
8
6
1
L
BC848B
H
u
0
1
C14
1n0
3
V1
33n
1
BAS 40-04
2
Siemens Aktiengesellschaft 4 23.07.1998
Semiconductor Group 4 1998-11-01
HL HF PE GaAs 1/Fo