AH118
Frequency
Gain
Input Return Loss
Output Return Loss
Output P1dB
Output IP3
(+11 dBm / tone, 1 MHz spacing)
The Communications Edge
TM
Product Information
¼ Watt, High Linearity InGaP HBT Amplifier
1900 MHz Application Circuit (AH118-89PCB1900)
1900 MHz
16.8 dB
12 dB
20 dB
+24.7 dBm
+40.5 dBm
+18 dBm
4.3 dB
+5 V
160 mA
+5V
C AP
ID =C 1
C =10 000 0 p F
D1
D iod e
5.6 V
C AP
ID =C 2
C =10 00 p F
CA P
ID= C 3
C= 5 6 p F
All passive com pone nts are of size 0603 unless otherwise note d.
The d iode D1 is used as over-voltage protection on the e va luation.
b oard s. It is not specifi cally requ ired in the fina l circuit layout in
a s ystem using a DC regul ator.
Com ponen t R1 is shown in the si lkscre en but is not u sed fo r this
configuration.
L 3-- 0 ohm resistor can be rem oved from th e final layout.
P OR T
P =1
Z =50 O h m
CA P
ID =C 4
C= 5 6 p F
IND
ID= L2
L= 4.7 n H
IN D
ID =L 1
L =1 8 nH
C AP
ID =C 5
C =56 pF
POR T
P=2
Z= 5 0 Oh m
Channel Power
(@-45 dBc ACPR, IS-95 9 channels fwd)
Noise Figure
Device / Supply Voltage
Quiescent Current
C AP
ID =C 7
C =2.7 pF
S UB CK T
ID = U1
N ET ="AH 11 8"
R ES
ID =L3
R =0 O hm
CA P
ID= C 9
C= 1.8 pF
C7 should b e place d a t the silk screen m a rker
'A' on the W J evaluation board or 4.6 deg @ 1.8 4GH z
from pi n 1 of the AH11 8
C9 should be plac ed at the silk screen m arker '5' on the
e va luation bo ard o r 23 deg @ 1.9 G Hz from pin 3 of AH11 8.
Gain
S11, S22 vs. Frequency
ACPR vs. Channel Power
-40
IS-95, 9 Ch. Fwd, ±885 kHz offset, 30 kHz Meas BW, 1900 MHz
18
0
S11,S22 (dB)
-5
-10
-15
S22
17
16
15
14
13
1800
1850
1900
Frequency (MHz)
1950
2000
-50
S11
-60
-20
-25
1.8
-70
1.85
1.9
Frequency (GHz)
1.95
2
12
13
14
15
16
17
18
19
Output Channel Power (dBm)
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 4 of 8 May 2006
WJCI [ WJ COMMUNICATION. INC. ]
