SD57045(2002) 查看數據表（PDF） - STMicroelectronics
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SD57045 Datasheet PDF : 11 Pages
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TYPICAL PERFORMANCE (PEP)
Output Power vs. Input Power
Pout (W)
60
50
40
30
20
10
0
0
VDD = 28 V
IDQ = 250 mA
f1 = 945 MHz
f2 = 945.1 MHz
0.5
1
1.5
2
Pin (W)
Efficiency vs. Output Power (PeP)
Nd (%)
60
50
40
30
20
10
0
0
f1 = 945 Mhz
f2 = 945.1 Mhz
VDD = 28 V
IDQ = 250mA
10
20
30
40
50
60
Pout (WPEP)
Intermodulation Distortion vs. Output Power
IMD3 (dBc)
0
-10
-20
Idq = 75 mA
-30
Idq = 150 mA
-40
Idq = 450 mA
-50
Idq = 250 mA
-60
VDD = 28 V
-70
f1 = 945 Mhz
f2 = 945.1 Mhz
-80
0.1
1
10
100
Pout (W)
SD57045
Power Gain vs. Input Power
Gp (dB)
18
17
16
15
14
13
12
0
VDD = 28 V
IDQ = 250 mA
f1 = 945 MHz
f2 = 945.1 MHz
10
20
30
40
50
60
70
Pin (W)
Intermodulation Distortion vs. Output Power
IMD (dBc)
0
-5
VDD = 28 V
IDQ = 250 mA
-10 f1 = 945 MHz
-15
f2 = 945.1 MHz
-20
-25
-30
-35
IMD3
-40
-45
IMD5
-50
-55
-60
IMD7
-65
-70
-75
-80
0
10
20
30
40
50
60
Pout (WPEP)
Class A Third Order Intercept Point
Pout (dBm)
70
60
50
Fundamental
40
30
20
10
IMD3
0
-10
-20
VDS = 26 V
ID = 1.8 A
f1 = 945 MHz
-30
f2 = 945.1 MHz
-40
10
15
20
25
30
35
40
45
Pin (dBm)
5/11
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