AH31-G データシートの表示（PDF） - Unspecified
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AH31-G Datasheet PDF : 9 Pages
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AH31
High Dynamic Range IF Amplifier
The Communications Edge TM
Product Information
Application Circuit: 220 – 260 MHz (AH31-PCB240)
Typical Performance
Frequency
240 MHz
S21 - Gain
19 dB
S11
-15 dB
S22
-17 dB
Output P1dB +22 dBm
Output IP3
+42 dBm
Noise Figure 1.8 dB
Bias
+5 V @ 150 mA
C1
1000 pF
RF IN 0603
L1
56 nH
0603
R1
1.5 Ω
0603
VS = +5 V
ID = 150 mA
C5
.018 µF
0603
L2
220 nH
0805
AH31
C3
2.2 pF
0603
RF OUT
R2
0Ω
0603
C4
1000 pF
0603
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.
Gain vs Frequency
20
S11 vs Frequency
0
S22 vs Frequency
0
18
-5
-5
16
-10
-10
14
-15
-15
12
-40 C +25C +85 C
10
-20
-40 C +25 C +85C
-25
-20
-40 C +25C +85 C
-25
100 150 200 250 300 350 400
100 150 200 250 300 350 400
100 150 200 250 300 350 400
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
OIP3 vs Frequency
44
25°C, Freq. spacing = 1 MHz, Pout=+10 dBm/tone
42
40
38
36
34
220
230
240
250
260
Frequency (MHz)
Output IP3 vs. Temperature
44
Frequency = 240, 241 MHz, Pout=+10 dBm/tone
42
40
38
36
34
-40 -20 0 20 40 60 80
Temperature (°C)
50
45
40
35
30
25
0
Output IP3 vs. Output Power
25°C, Frequency = 240, 241 MHz
2
4
6
8
10
Output Power (dBm)
Noise Figure vs Frequency
5
P1dB vs Frequency
24
4
22
3
20
2
18
1
16
-40 C +25C +85 C
0
-40 C +25 C +85C
14
220
230
240
250
260
220
230
240
250
260
Frequency (MHz)
Frequency (MHz)
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
September 2004
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