參數(shù)資料
型號(hào)： AH31
元件分類： 放大器
英文描述： 50 MHz - 500 MHz RF/MICROWAVE WIDE BAND MEDIUM POWER AMPLIFIER
封裝： TO-243C, SOT-89, 3 PIN
文件頁(yè)數(shù)： 4/8頁(yè)
文件大小： 486K
代理商： AH31
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 June 2005
AH31
High Dynamic Range IF Amplifier
Product Information
The Communications Edge TM
Application Circuit: 220 – 260 MHz (AH31-PCB240)
Typical Performance
Frequency
240 MHz
Gain
19.3 dB
S11
-19 dB
S22
-12.5 dB
Output P1dB
+22 dBm
Output IP3
+42 dBm
Noise Figure
2.2 dB
Bias
+5 V @ 150 mA
Notes:
1. The amplifier should be connected directly to a +5 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 is internally grounded in the amplifier.
3. R2 is used as a placeholder for a different application circuit. It can be removed from the circuit.
4. C2 (from the silkscreen) is not utilized in this application circuit.
S-Parameters
15
16
17
18
19
20
200
220
240
260
280
Frequency (MHz)
G
a
in
(d
B
)
-25
-20
-15
-10
-5
0
S
1
,
S
2
(d
B
)
S11
S22
S21
Noise Figure vs Frequency
1.0
1.5
2.0
2.5
3.0
3.5
220
230
240
250
260
Frequency (MHz)
N
o
is
e
F
ig
u
re
(d
B
)
-40 C
+25 C
+85 C
P1dB vs Frequency
14
16
18
20
22
24
220
230
240
250
260
Frequency (MHz)
P
1
d
B
(d
B
m
)
-40 C
+25 C
+85 C
OIP3vsFrequency
25
C, Freq. spacing=1MHz, Pout=+10dBm/tone
34
36
38
40
42
44
220
230
240
250
260
Frequency (MHz)
O
ut
pu
tI
P
3
(d
B
m
)
Output IP3vs. Temperature
Frequency=240, 241MHz, Pout=+10dBm/tone
34
36
38
40
42
44
-40
-20
0
20
40
60
80
Temperature(
C)
O
ut
pu
tI
P
3
(d
B
m
)
Output IP3vs. Output Power
25
C, Frequency=240, 241MHz
25
30
35
40
45
50
0
2
4
6
8
10
Output Power (dBm)
O
ut
pu
tI
P
3
(d
B
m
)
AH31
RF
VS = +5 V
C5
.018
F
L1
68 nH
C4
1000 pF
L2
220 nH
RF IN
R1
3.3
C3
2.2 pF
C1
1000 pF
R2
0
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