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SD2931-10

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
Typical performance @ 175 MHz SD2931-10
10/19 DocID7076 Rev 10
6 Typical performance @ 175 MHz
Figure 10. Output power vs input power Figure 11. Output power vs input power
Figure 12. Power gain vs output power Figure 13. Efficiency vs output power
0 5 10 15 20 25
Pin, INPUT POWER (W)
0
30
60
90
120
150
180
210
240
270
Pout, OUTPUT POWER (W)
f= 175MHz
Idq= 250mA
Vdd= 40V
Vdd= 50V
0 5 10 15 20 25
Pin, INPUT POWER(W)
0
30
60
90
120
150
180
210
240
270
Pout, OUTPUT POWER (W)
Vdd= 50V
Idq= 250mA
f= 175MHz
Tc =-20 °C
Tc =+25 °C
Tc =+80 °C
0 50 100 150 200 250
Pout, OUTPUT POWER (W)
6
8
10
12
14
16
18
Gp, POWER GAIN (dB)
Vdd=50V
Idq=250mA
f=175Mhz
0 50 100 150 200 250
Pout, OUTPUT POWER (W)
20
30
40
50
60
70
80
Nd, EFFICIENCY (%)
Vdd=50V
Idq=250mA
f=175Mhz
Figure 14. Output power vs supply voltage Figure 15. Drain current vs gate-source voltage
24 28 32 36 40 44 48 52
Vdd,DRAIN VOLTAGE(V)
0
30
60
90
120
150
180
210
240
270
Pout,OUTPUT POWER(W)
Pin =2.5W
Pin =5W
Pin =10W
Idq= 250mA
f= 175MHz
22.533.544.555.56
VGS, GATE-SOURCE VOLTAGE (V)
0
5
10
15
20
ID, DRAIN CURRENT (A)
Tc=-20 °C
Tc=+25 °C
Tc=+80 °C
DocID7076 Rev 10 11/19
SD2931-10 Test circuit
19
7 Test circuit
Figure 16. 175 MHz schematic (production test circuit)
Note: All dimensions in inches
REF. 1021579C
Table 8. Component part list
Component Description
T1 4:1 transformer, 25 ohm flexible coax .090 OD 6” long
T2 1:4 transformer, 25 ohm semi-rigid coax .141 OD 6” long
FB1 Toroid X 2, 0.5” OD .312” ID 850μ 2 turns
FB2, FB3 VK200
FB4 Shield bead, 1” OD 0.5” ID 850μ 3 turns
L1 1/4 wave choke, 50 ohm semi-rigid coax .141 OD 12” Long
PCB 0.62” woven fiberglass, 1 oz. copper, 2 sides, εr = 2.55
R1, R3 470 ohm 1 W chip resistor
R2 360 ohm 1/2 W resistor
R4 20 Kohm 10 turn potentiometer
R5 560 ohm 1 W resistor
C1, C11 470 pF ATC chip cap
C2 43 pF ATC chip cap
C3, C8, C9 Arco 404, 12-65 pF
C4 Arco 423, 16-100 pF
Test circuit SD2931-10
12/19 DocID7076 Rev 10
Figure 17. 175 MHz test circuit photomaster
Figure 18. 175 MHz test circuit
Component Description
C5 120 pF ATC chip cap
C6 0.01 μF ATC chip cap
C7 30 pF ATC chip cap
C10 91 pF ATC chip cap
C12, C15 1200 pF ATC chip cap
C13, C14,C16, C17 0.01 μF / 500 V chip cap
C18 10 μF 63 V electrolytic capacitor
Table 8. Component part list (continued)
6.4 inches
4 inches
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

SD2931-10

Mfr. #:
Buy SD2931-10
Manufacturer:
STMicroelectronics
Description:
RF MOSFET Transistors N-Ch 125 Volt 20A
Lifecycle:
New from this manufacturer.
Delivery:
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