Motorola MHW927A Datasheet
1
MHW927A MHW927BMOTOROLA RF DEVICE DATA
The RF Line
Designed specifically for the United States digital 3.0 W, mobile radio. The
MHW927A/B are capable of wide power range control, operate from a 12.5 V
supply and require 1.0 mW of RF input power.
• MHW927A Operates from a 9.5 Volt Bias Supply (VB)
MHW927B Operates from a 8.0 Volt Bias Supply (VB)
• Specified 12.5 Volt Characteristics for MHW927A/B:
RF Input Power — 1.0 mW (0 dBm) Max
RF Output Power — 6.0 W
Power Gain — 40 dB Typ
Harmonics — –30 dBc Max @ 2 f
0
• Linearity (IMD) — –29 dBc Max for 3rd Order; –34 dBc Max for 5th Order
• New Biasing and Control Techniques Providing Dynamic Range and Control Circuit
Bandwidth Ideal for USDC
• 50 Ω Input/Output Impedances
• Guaranteed Stability and Ruggedness
MAXIMUM RATINGS
(Recommended Values for Safe Operation — Not Guaranteed Performance)
Rating
Symbol Value Unit
DC Supply Voltage VS2, V
S3
16.5 Vdc
DC Bias Voltage V
B
10 Vdc
RF Input Power MHW927A, B P
in
3.0 mW
RF Output Power P
out
13 W
Operating Case Temperature Range T
C
–30 to +100 °C
Storage Temperature Range T
stg
–30 to +100 °C
ELECTRICAL CHARACTERISTICS (V
S2
= VS3 = 12.5 Vdc; VB = 9.5 Vdc (MHW927A); VB = 8.0 Vdc (MHW927B); Pin ≤ 1.0 mW
(MHW927A/B); TC = +25°C, 50 ohm system, unless otherwise noted)
Characteristic
Symbol Min Typ Max Unit
Frequency Range BW 824 — 849 MHz
Input Power (P
out
= 6.0 W) (1) P
in
— — 1.0 mW
Efficiency (P
out
= 6.0 W) (1) η
1
28 30 — %
Efficiency, Two Tone (P
out
(Avg.) = 6.0 W; f1 & f2 10 kHz apart) (1) η
2
28 30 — %
Input VSWR (P
out
= 6.0 W) (1) VSWR
in
— — 2.5:1 —
Harmonics (P
out
= 6.0 W) (1) 2 f
0
3 f
0
— —
—
—
—
–30
–45
dBc
Noise Power (In 30 kHz Bandwidth, 45 MHz Above f0; TC = +25°C to TC = +100°C;
P
out
= 6.0 W) (1)
— — — –82 dBm
Linearity (P
out
(Avg.) = 6.0 W; f1 & f2 are 10 kHz apart) (1) 3rd Order IMD
5th Order IMD
— —
—
–31
–36
–29
–34
dBc
Load Mismatch Stress (VS2 = VS3 = 16 Vdc; P
out
= 12.5 W; Pulsed at 50% Duty
Cycle; Load VSWR = 20:1, All Phase Angles At Frequency of Test) (1)
ψ No Degradation
In Output Power Between
Before and After Test
Stability (VS2 = VS3 = 10 to 16 Vdc; P
out
= 0.012 to 12 W;
Load VSWR = 4:1, All Phase Angles At Frequency of Test) (1)
— All Spurious Outputs
More Than 70 dB
Below Desired Signal
NOTE:
1. Adjust Pin for Specified P
out
.
Preferred devices are Motorola recommended choices for future use and best overall value.
Order this document
by MHW927A/D
SEMICONDUCTOR TECHNICAL DATA
6.0 W
824 to 849 MHz
RF LINEAR
POWER AMPLIFIERS
CASE 301AA–01, STYLE 1
*Motorola Preferred Device
Motorola, Inc. 1994
REV 6
MHW927A MHW927B
2
MOTOROLA RF DEVICE DATA
Figure 1. MHW927A/B Test Circuit Diagram
*Module input power is forward power as sampled by the directional
*coupler and read on the input power meter.
MHW927 INTERNAL DIAGRAM
INPUT*
POWER
METER
REFLECTED
POWER
METER
10 dB
MINIMUM
ATTENUATION
RF SIGNAL
GENERATOR
POWER
TERMINATION
20 dB DUAL DIRECTIONAL
COUPLER
RF
OUT
RF
IN
20 dB
ATTENUATOR
SPECTRUM
ANALYZER
OUTPUT
POWER
METER
Z1
Z2
C1, 2, 3 — 0.018 µF
C4, 5, 6 — 0.1 µF
C7, 8, 9 — 1.0 µF (tant.)(tant.)
Z1, Z2 — 50 Ω MICROSTRIP
1 2
90 DEGREE
HYBRID
JUNCTION
50
Ω
TERMINATION
6 dB PAD
6 dB PAD
CIRCULATORS
TEST FIXTURE
C4
50
Ω
TERMINATION
C1
3
C7
4 5
V
BIAS
(TYPICAL)
(1)
V
S2
12.5 V
@ 160 mA
(TYPICAL)
V
S3
12.5 V
@ 1.25 mA
(TYPICAL)
20 dB DUAL DIRECTIONAL
COUPLER
RF SIGNAL
GENERATOR
C5C2
C8
C3C6
C9
+ + +
(1)
V
BIAS
= 9.5 V @ 140 mA (MHW927A) or 8.0 V @ 140 mA (MHW927B)
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