MHW953 Просмотр технического описания (PDF) - Motorola => Freescale
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производитель
MHW953 Datasheet PDF : 8 Pages
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CIRCUIT BLOCK DIAGRAM
1
2
3
4
5
C2
C1
C3
C4
C5
C6
C7
Z2
Z1
L1
L2
L3
RF INPUT
Vs1
Vb
Vs2
RF OUTPUT
PIN DESIGNATIONS:
Pin 1 — RF Input Power @ 20 dBm Max Adjust for
Pin 1 — Output Power
Pin 2 — First Stage Collector Voltage @ 7.2 Vdc
Pin 3 — Trickle Bias Voltage @ 4.5 Vdc
Pin 4 — Third Stage Collector Supply @ 7.2 Vdc
Pin 5 — RF Output Power @ 3.5 W Nominal
ELEMENT VALUES:
C1=C2=C4=C6= 0.018 µF
C3=C5=C7= 2.2 µF
L1, L2 = 0.29 µH
L3 = 0.2 µH
Z1, Z2 = 50 Ohm Microstrip
Figure 2. Test Circuit Diagram — MHW954
3
55
η
2.5
50
Vcont
2
Pin = 1 mW
45
Pout = 3.5 W
1.5
Vs1 = Vs2 = Vs3 = 7.2 V
Vb = 5 V
VSWR
1
1.5:1
0.5
1.0:1
0
890
895
900
905
910
915
f, FREQUENCY (MHz)
Figure 3. Control Voltage, Efficiency and Input
VSWR versus Frequency
5
4
Pin = 1 mW
3 Vs1 = Vs2 = Vs3 = 7.2 V
Vb = 5 V
2
f = 890 MHz
915 MHz
902 MHz
1
0
0 0.5 1 1.5
2 2.5
3
3.5
4
Vcont, CONTROL VOLTAGE (Vdc)
Figure 4. Output Power versus Control Voltage
MOTOROLA RF DEVICE DATA
MHW903 MHW953 MHW954
3
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