SD57045(2002) 查看數據表（PDF） - STMicroelectronics
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SD57045 Datasheet PDF : 11 Pages
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SD57045
TYPICAL PERFORMANCE (CW)
Output Power and Power Gain vs. Input Power
Pout (W)
70
Gp (dB)
18
60
Gp
16
50
14
40
12
30
Pout
20
10
0
0
0.5
1
1.5
Pin (W)
Efficiency vs. Output Power
Nc (%)
60
10
8
VDD = 28 V
IDQ = 250 mA
f = 945 MHz
2
2.5
6
4
3
50
40
30
20
10
0
0
Freq = 945 Mhz
VDD = 28 V
IDQ = 250mA
10
20
30
40
50
60
Pout (W)
Output Power vs. Drain Voltage
Pout (W)
90
Vdd = 28 V
80
Idq = 250 mA
f = 945 MHz
70
Pin =3 W
60
Pin = 2 W
50
40
Pin = 1 W
30
20
10
12
16
20
24
28
32
36
Vds (V)
4/11
Power Gain vs. Output Power
Gp (dB)
20
18
Idq = 450 mA
16
Idq = 250 mA
14
Idq = 150 mA
12
Idq = 75 mA
10
8
6
0.1
Vdd = 28 V
f = 945 Mhz
1
10
100
Pout (W)
Broadband Power Performance
Gp, GAIN (dB)
16
RTL (dB)
20
15
18
GAIN
14
16
13
14
12
12
RETURN LOSS
11
10
10
8
9
6
8
4
925 930 935 940 945 950 955 960 965
f, FREQUENCY (MHz)
Output Power vs Gate Biat Voltage
Pout (W)
60
50
40
30
20
10
VDD = 28 V
Pin = 1.5 W
f = 945 MHz
0
0
0.5
1
1.5
2
2.5
3
3.5
4
VGS (V)
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