AH202
1W High Linearity Amplifier
Reference Design: 1900 MHz
using the AH202 in the previously recommended circuit configuration with the AH201 (AH201-PCB1900)
°
Typical RF Performance at 25°C
Frequency
S21 - Gain
S11
S22
Output P1dB
Output IP3
IS-95A Ch. Power
@ -45 dBc ACPR
+1
1V
CAP
ID=C5 (1206)
C=1e5 pF
1900 MHz
15 dB
- 8 dB
- 8 dB
+ 29.7 dBm
+ 46 dBm
+ 23 dBm
3.8 dB
+11 V
330 mA
CAP
ID=C4 (0805)
C=1000 pF
PORT
P=1
Z=50 Ohm
CAP
ID=C1
C=56 pF
RES
ID=L2
R=0 Ohm
SUBCKT
ID=S1
NET="AH202_F"
IND
ID=L1 (1008)
L=22 nH
CAP
ID=C3
C=56 pF
CAP
ID=C2
C=56 pF
Noise Figure
Supply Voltage
Supply Current
CAP
ID=C6
C=0.5 pF
TLIN
ID=TL1
Z0=50 Ohm
EL=31 Deg
F0=1900 MHz
CAP
ID=C7
C=1.0 pF
PORT
P=2
Z=50 Ohm
Notes:
1. The amplifier should be connected directly to a +11 V regulator; no dropping resistor is required.
2. If no DC signal is present at the input (pin 1), C1 can be removed. The gate (input pin) is internally grounded in the amplifier.
3.
Component sizes are 0603 unless otherwise noted. RF choke L1 should be wirewound ceramic type to insure sufficient current carrying
capacity. Coilcraft’s 1008 CS series (part # 1008CS-220X_B) is recommended.
4.
5.
16
15
S21 (dB)
5
the performance.
C6 is located at silk screen marker “C” and C8 is located between silk screen markers “6” and “7” on the WJ evaluation board.
S-Parameters
Vd = +11.0V, Temp = +25C
S21
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Noise Figure
0
-5
Noise Figure (dB)
S11 & S22 (dB)
6
5
4
3
2
1
0
1700
Vd = 11.0V, Temp = 25°C
S22
14
13
12
1700
S11
-10
-15
-20
2000
1800
1900
Frequency (MHz)
1800
1900
Frequency (MHz)
2000
OIP3 vs. Pout
Vd = +11V, Temp = 25°C
ACPR vs. Channel Power
1900 MHz., IS-95 Ch. Fwd, ± 885 KHz offset, 30 KHz Meas. BW
55
OIP3 (dBm)
ACPR (dBc)
5
7
9
11
13
Pout (dBm)
15
17
50
45
40
35
-40
-45
-50
-55
-60
-65
-70
-75
14
16
18
20
22
Output Channel Power (dBm)
24
Specifications and information are subject to change without notice
WJ Communications, Inc
•
Phone 1-800-WJ1-4401
•
FAX: 408-577-6621
•
e-mail: sales@wj.com
•
Web site: www.wj.com
Page 6 of 9 May 2007
WJCI [ WJ COMMUNICATION. INC. ]
