The Communications Edge TM
AH118
¼ Watt, High Linearity InGaP HBT Amplifier
Product Information
900 MHz Application Circuit (AH118-89PCB900)
ID=C1
C=1e5 pF
size 1206
Vcc = +5 V
Frequency
900 MHz
All passive components are of size 0603 unless otherwise noted.
Gain
20.4 dB
ID=C2
C=1000 pF
size 0805
The diode D1 is used as over-voltage protection on the evaluation
boards. It is not specifically required in the final circuit layout in
Input Return Loss
Output Return Loss
Output P1dB
15 dB
a system using a DC regulator.
DIODE1
ID=C3
C=56 pF
Component R1 is shown in the silkscreen but is not used for this
configuration.
5.6 V
12 dB
L2 - the 0 ohm resistor - can be removed (with a thru line) in the
final circuit layout.
IND
ID=L1
L=33 nH
+24.2 dBm
Output IP3
size 0805
ID=C4
ID=L2
+40 dBm
ID=C5
C=100 pF
C=100 pF
R=0 Ohm
(+11 dBm / tone, 1 MHz spacing)
Channel Power
+18.2 dBm
ID=L3
L=2.7 nH
(@-45 dBc ACPR, IS-95 9 channels fwd)
ID=C7
C=8.2 pF
NET="AH118"
Noise Figure
4 dB
+5 V
ID=C9
C=2 pF
C9 should be placed at the
silk screen marker '7' on the
WJ evaluation board.
C7 should be placed at the silk screen
marker 'C' on the WJ evaluation board.
Device / Supply Voltage
Quiescent Current
The capacitor should be placed
The capacitor should be placed
15.8° @ 0.9GHz from pin 3
of the AH118.
6.1° @ 0.9GHz from pin 1 of the AH118
160 mA
S21 vs. Frequency
ACPRvs. Channel Power
IS-95, 9 Ch. Fwd, ±885 kHz offset, 30 kHz Meas BW, 900 MHz
22
21
20
19
18
17
-40
-50
-60
-70
+25°C
-40°C
+85°C
12
13
14
15
16
17
18
19
800
850
900
950
1000
Frequency (MHz)
S11 vs. Frequency
Output Channel Power (dBm)
S22 vs. Frequency
0
-5
0
-5
+25°C
-40°C
+85°C
-10
-15
-20
-25
-30
-10
-15
-20
-25
-30
+25°C
-40°C
+85°C
800
850
900
Frequency (MHz)
950
1000
800
850
900
Frequency (MHz)
950
1000
Specifications and information are subject to change without notice
Page 3 of 8 May 2006
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com