AH1
High Dynamic Range Amplifier
S-Parameters (V
DS
= +5 V, I
DS
= 150 mA, T = 25
q
C, unmatched device in a 50 ohm system)
Input return loss can be improved with the appropriate input matching network shown later in this datasheet.
Gain vs. Output Power
Output IP3 vs. Output Power
Typical Device Data
14
13
12
11
10
9
0
5
10
Output Power (dBm)
Gain vs. Frequency
100% Idss
75% Idss
50% Idss
45
40
35
30
100% Idss
900 MHz
OIP3 Load Pull Circles
900 MHz
IP3=35
IP3=36
IP3=37
IP3=38
IP3=39
IP3=41
25
20
75% Idss
50% Idss
15
20
0
5
10
Output Power (dBm)
15
20
VSWR=1.5
VSWR=2
VSWR=3
VSWR=4
VSWR=5
Return Loss vs. Frequency
20
15
0
-5
-10
w/o Matching Circuitry
10
5
-15
-20
-25
S11
S22
0
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
-30
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
S-Parameters (V
D
= +5 V, I
D
= 150 mA, T = 25
q
C, calibrated to device leads)
Freq (MHz)
S11 (dB)
S11 (ang)
S21 (dB)
S21 (ang)
S12 (dB)
S12 (ang)
S22 (dB)
S22 (ang)
50
250
500
750
1000
1250
1500
1750
2000
2250
2500
2750
3000
-2.65
-7.97
-8.57
-8.47
-8.24
-7.79
-7.18
-6.55
-6.03
-5.69
-5.55
-5.68
-5.86
-29.52
-44.15
-60.61
-80.72
-100.99
-120.81
-138.15
-152.70
-164.30
-173.54
176.22
166.67
153.06
17.80
15.28
14.91
14.60
14.22
13.80
13.27
12.69
12.11
11.57
11.12
10.76
10.40
164.25
158.50
147.54
134.66
121.38
108.59
96.13
84.26
73.25
62.88
52.70
42.57
31.81
-24.29
-21.31
-21.11
-21.11
-21.21
-21.21
-21.41
-21.62
-21.83
-21.99
-22.10
-22.16
-22.27
45.18
6.75
-3.83
-10.90
-17.00
-23.01
-28.54
-33.67
-38.35
-42.48
-46.41
-50.57
-55.21
-8.25
-19.01
-25.15
-29.26
-30.76
-29.83
-29.30
-29.12
-28.24
-26.58
-25.60
-26.12
-29.48
-39.80
-65.37
-69.25
-84.69
-115.12
-88.78
-94.19
-136.07
-112.00
-97.44
-90.19
-87.80
-82.67
Device S-parameters are available for download off of the website at: http://www.wj.com
Specifications and information are subject to change without notice.
WJ Communications, Inc
x
Phone 1-800-WJ1-4401
x
FAX: 408-577-6621
x
e-mail: sales@wj.com
x
Web site: www.wj.com
Page 2 of 5 April 2007
WJCI [ WJ COMMUNICATION. INC. ]
