Download UHF Silicon FET Power Amplifier The RF Line

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by MHW910/D
SEMICONDUCTOR TECHNICAL DATA
The RF Line
MHW910
UHF Silicon FET Power Amplifier
Designed specifically for the European Digital Extended Group Special
Mobile (GSM) Base Station applications in the 925–960 MHz frequency range.
MHW910 operates from a 24 volt supply and requires 17 dBm of RF input
power. It includes a micropower voltage regulator in the biasing circuit. This
allows MHW910 to operate from any bias voltage between 8 and 28 volts.
10 W
925 – 960 MHz
RF POWER AMPLIFIER
• Specified 24 Volt Characteristics:
RF Input Power — 17 dBm Maximum
RF Output Power — 10 W @ 1 dB Compression Point
Minimum Gain — 23 dB
Harmonics — –35 dBc Maximum @ 2 fo
• 50 Ω Input/Output System
CASE 301AB–02, STYLE 1
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
DC Supply Voltage
VS
28
Vdc
DC Bias Voltage
VB
28
Vdc
RF Input Power
Pin
21
dBm
Pout
30
W
Operating Case Temperature Range
TC
–40 to +95
°C
Storage Temperature Range
Tstg
– 40 to +100
°C
RF Output Power
ELECTRICAL CHARACTERISTICS (VS1 = VS2 = 24 Vdc, Vbias = 8 to 28 Vdc, TC = 25°C, 50 Ω system, unless otherwise noted)
Symbol
Min
Typ
Max
Unit
Frequency Range
BW
925
–
960
MHz
Total Quiescent Current (Pin = 0 mW)
IQ
–
160
–
mA
Characteristic
Power Gain (Pout = 10 W)(1)
GP
23
–
–
dB
P1dB
10
–
–
W
η
35
40
–
%
VSWRin
–
–
2:1
–
H2
H3
–
–
–
–
–35
–45
dBc
dBc
–
–
–
2
dB
Power Gain Variation (Pout = 1 mW to 10 W)
–
–
–
2
dB
Load Mismatch Stress (Pout = 10 W; Load VSWR 3:1,
All Phase Angles)
ψ
No Degradation in Output Power
Stability (Pout = 10 mW to 10 W; Load VSWR 3:1;
All Phase Angles; TC = –40°C to +95°C)
–
All Spurious Outputs More Than 70 dB
Below Desired Signal
Output Power at 1 dB Compression
Efficiency (Pout = 10 W)
Input VSWR (Pout = 10 W)
Harmonics (Pout = 10 W)
2fo
3fo
Ripple (Pout = 10 W)
(1) Adjust Pin for specified Pout.
REV 1
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1998
MHW910
1
MHW910 BLOCK DIAGRAM
OUTPUT
POWER
METER
INPUT
POWER
METER
REFLECTED
POWER
METER
5 V REG
TEST FIXTURE
2
1
C4
C1
3
4
C5
5
C6
C7 C8
Z1
C2
C9
C3
RF IN
20 dB DUAL
DIRECTIONAL COUPLER
Vbias
24 V
RF SIGNAL
GENERATOR
Z2
RF OUT
20 dB DUAL
DIRECTIONAL COUPLER
10 dB
MINIMUM
ATTENUATION
SPECTRUM
ANALYZER
VS1
24 V
C1, C2, C3
C4, C5, C6
C7, C8, C9
Z1, Z2
VS2
24 V
0.018 µF
0.1 µF
1.0 µF
50 Ω Microstrip
POWER
TERMINATION
Figure 1. MHW910 Test Circuit Diagram
MHW910
2
MOTOROLA RF DEVICE DATA
TYPICAL CHARACTERISTICS
60
42
55
38
45
40
36
f = 960 MHz
34
35
η
32
30
30
25
28
20
26
15
24
η, EFFICIENCY (%)
50
f = 925 MHz
10
f = 960 MHz
5
22
0
2
4
6
8
10
12
Pin, INPUT POWER (dBm)
14
16
18
3
2.5
VSWR
2
1.5
1
Pout = 10 W
750
800
850 900 950 1000
f, FREQUENCY (MHz)
1050
1100
0.5
0
1150
Figure 3. Power Gain versus Frequency
17
46
16
15
TC = 25°C
14
13
Pout = 10 W
45
TC = 0°C
η, EFFICIENCY (%)
P1dB, OUTPUT POWER AT 1 dB COMPRESSION (W)
Figure 2. Output Power versus Input Power
TC = 95°C
12
TC = 0°C
44
43
TC = 25°C
42
TC = 95°C
41
40
11
10
925
GAIN dB
Gp, POWER GAIN (dB)
Pout , OUTPUT POWER (dBm)
40
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
700
INPUT VSWR
44
930
935
940
945
950
f, FREQUENCY (MHz)
955
960
39
925
Figure 4. P1dB versus Temperature
930
935
940
945
950
f, FREQUENCY (MHz)
955
960
Figure 5. Efficiency versus Temperature
Gp, POWER GAIN (dB)
29
28
TC = 0°C
TC = 25°C
27
TC = 95°C
26
Pout = 10 W
25
925
930
935
940
945
950
f, FREQUENCY (MHz)
955
960
Figure 6. Power Gain versus Temperature
MOTOROLA RF DEVICE DATA
MHW910
3
PACKAGE DIMENSIONS
–A–
G
–B–
Y
0.89 (0.035)
R
T A
M
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION F TO CENTER OF LEADS.
4. REF INDICATES NON–CONTROLLED DIMENSION
FOR REFERENCE USE ONLY.
M
–S–
J
1 2
3 4 5
K
Q 2 PL
0.50 (0.020)
M
V
L
W
T S
0.25 (0.010)
M
N
H
D 5 PL
0.64 (0.025)
M
T B
E
F
C
–T–
SEATING
PLANE
P 5 PL
0.25 (0.010)
M
T S
M
A
M
DIM
A
B
C
D
E
F
G
H
J
K
L
N
P
Q
R
S
V
W
Y
INCHES
MIN
MAX
1.890
1.910
1.170
1.190
0.350
0.376
0.018
0.022
0.120
0.135
0.165 BSC
1.600 BSC
1.055 BSC
0.336
0.360
0.225
–––
0.255 BSC
0.955 BSC
0.008
0.012
0.151
0.161
0.685
0.705
0.598
0.612
0.155 BSC
0.355 BSC
0.210 REF
STYLE 1:
PIN 1.
2.
3.
4.
5.
CASE:
MILLIMETERS
MIN
MAX
48.01
48.51
29.72
30.23
8.89
9.55
0.46
0.56
3.05
3.43
4.19 BSC
40.64 BSC
26.80 BSC
8.53
9.14
5.72
–––
6.48 BSC
24.26 BSC
0.20
0.31
3.84
4.09
17.40
17.91
15.19
15.55
3.94 BSC
9.02 BSC
5.33 REF
RF INPUT
+DC (BIAS)
+DC (SUPPLY)
+DC (SUPPLY)
RF OUTPUT
GROUND
T
CASE 301AB–02
ISSUE H
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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MHW910
4
◊
MHW910/D
MOTOROLA RF DEVICE
DATA