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参数资料
| 型号： | MHW954 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 衰减器 |
| 英文描述： | 3.5 W 890 to 915 MHz RF POWER AMPLIFIERS |
| 中文描述： | 890 MHz - 915 MHz RF/MICROWAVE NARROW BAND HIGH POWER AMPLIFIER |
| 文件页数： | 2/8页 |
| 文件大小： | 154K |
| 代理商： | MHW954 |
MHW903 MHW953 MHW954
2
MOTOROLA RF DEVICE DATA
ELECTRICAL CHARACTERISTICS — continued
(Vs1 = Vs2 = Vs3 = 7.2 Vdc; Vb = 5.0 Vdc for MHW903/953)
ELECTRICAL CHARACTERISTICS — continued
(Vs1 = Vs2 = 7.2 Vdc; Vb = 4.5 Vdc for MHW954)
ELECTRICAL CHARACTERISTICS — continued
(TC = 25
°
C; 50 ohm system, unless otherwise noted)
Characteristic
Efficiency (Pout = 3.5 W; Pin = 1.0 mW) MHW903/953 (1)
Efficiency
(Pout = 3.5 W) MHW954 (2)
Harmonics (Pout = 3.5 W; Pin = 1.0 mW) MHW903/953 (1) 2.0 fo
Symbol
η
Min
40
Max
—
Unit
%
3.0 fo
2.0 fo
3.0 fo
Harmonics
(Pout = 3.5 W) MHW954 (2)
—
—
—
—
—
–35
–45
–30
–40
dBc
Noise Power (In 30 kHz Bandwidth, 20 MHz above fo) (TC = 25
°
C–100
°
C)
(Pout = 0.3–3.5 W; Vs1 = Vs2 = Vs3 = 6.25–9.0 Vdc, Pin = 1.0 mW) MHW903/953 (1)
(Pout = 0.3–3.5 W; Vs1 = Vs2 = 6.25–9.0 Vdc) MHW954 (2)
Output Power, Low Voltage (Pin = 1.0 mW; Vs1 = Vs2 = Vs3 = 6.25 Vdc; Vcont = 3.0 Vdc) MHW903/953
Output Power, Low Voltage
(Pin = 100 mW; Vs1 = Vs2 = 6.25 Vdc) MHW954
Isolation (Pin = 1.0 mW; Vcont = 0 Vdc; Vs1 = Vb = 0–5 Vdc) MHW903/953 only (1)
3.0 dB Vcont Bandwidth (Pin = 1.0 mW; Pout = 0.03–3.5 W) MHW903/953 only (1)
% AM In Output
(Pout = 0.035–3.5 W; 135 kHz, 1% AM on Input) MHW954 only (2)
Load Mismatch Stress (Pin = 2.0 mW; Pout = 3.5 W; Vs1 = Vs2 = Vs3 = 9.0 Vdc) MHW903/953 (1)
Load Mismatch Stress
(Pout = 3.5 W; Vb = 4.75 Vdc; Vs1 = Vs2 = 9.0 Vdc) MHW954 (2)
Load Mismatch Stress
(Load VSWR = 10:1, All Phase Angles at Frequency of Test)
—
—
—
–65
–75
dBm
Po1
2.0
2.3
—
—
W
—
—
—
–36
dBm
1.0
—
MHz
—
—
6
%
ψ
No degradation
in output power
before and after test
Stability
(Pin = 0.5 to 2.0 mW; Pout = 0.03–3.5 W; Vs1 = Vs2 = Vs3 = 6.0 to 9.0 Vdc) MHW903/953 (1)
(Pout = 0.03–3.5 W; Vs1 = Vs2 = 6.0 to 9.0 Vdc) MHW954 (2)
(Load VSWR = 6:1, Source VSWR = 3:1, All Phase Angles at Frequency of Test)
—
All spurious outputs
more than 60 dB
below desired signal
NOTES:
1. Adjust Vcont for specified Pout; duty cycle = 12.5%, period = 4.6 ms
2. Adjust Pin for specified Pout; duty cycle = 12.5%, period = 4.6 ms
Figure 1. Test Circuit Diagram — MHW903/953
PIN DESIGNATIONS:
Pin 1 — RF Input Power @ 0 dBm and Control Voltage @ 0–3.0 Vdc
Pin 2 — First and Second Stage Collector Supply Voltage @ 7.2 Vdc
Pin 3 — Trickle Base Bias Voltage @ 5.0 Vdc
Pin 4 — Third Stage Collector Supply Voltage @ 7.2 Vdc
Pin 5 — Fourth Stage Collector Supply Voltage @ 7.2 Vdc
Pin 6 — RF Output Power @ 3.5 W
ELEMENT VALUES:
C1=C2= 0.018
μ
F
C4=C6=C8=C10= 0.1
μ
F
C3=C5=C7=C9 = 1.0
μ
F Tant.
L1–L3 = 0.29
μ
H Choke
L4, L5 = 0.15
μ
H Choke
Z1, Z2 = 50 Ohm Microstrip
CIRCUIT BLOCK DIAGRAM
Z1
L2
RF INPUT
1
2
3
4
5
6
Vcont
Z2
Vs1
Vb
Vs2+Vs3
RF OUTPUT
C7
C9
L3
L4
L5
L1
C1
C3
C2
C4
C6
C8
C10
C5
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