Motorola MHW105 Datasheet

1

MHW105MOTOROLA RF DEVICE DATA

The RF Line

  

The MHW105 is designed specifically for portable radio applications. The
MHW105 is capable of 5.0 watts power output, operates from a 7.5 volt supply
and requires only 1.0 mW of RF input power.

• Specified 7.5 Volt Characteristics:

RF Input Power — 1.0 mW (0 dBm)
RF Output Power — 5.0 W
Minimum Gain — 37 dB
Harmonics — –40 dBc Max @ 2 f

0

• 50 Ohm Input/Output Impedances

• Guaranteed Stability and Ruggedness

• Epoxy Glass PCB Construction Gives Consistent Performance and Reliability

MAXIMUM RATINGS

(Flange Temperature = 25°C)

Rating

Symbol Value Unit

DC Supply Voltage V

s3

9.0 Vdc

DC Control & Bias Voltage V

s1,2

9.0 Vdc

DC Control Voltage V

cont

9.0 Vdc

RF Input Power P

in

5.0 mW

RF Output Power (V

cont

= 9.0 Vdc) P

out

7.0 W

Operating Case Temperature Range T

C

–30 to +100 °C

Storage Temperature Range T

stg

–30 to +100 °C

ELECTRICAL CHARACTERISTICS (V

s1

= Vs2 = Vs3 = 7.5 Vdc; V

cont

≤ 7.0 Vdc; TC = +25°C, 50 Ω system, unless otherwise noted)

Characteristic

Symbol Min Max Unit

Frequency Range BW 68 88 MHz
Power Gain (P

out

= 5.0 W) (1) G

P

37 — dB

Control Voltage (Pin = 1.0 mW; P

out

= 5.0 W) (1) V

cont

— 7.0 Vdc

Efficiency (P

out

= 5.0 W) (1) η 40 — %

Harmonics (P

out

= 5.0 W) (1) 2 f0, 3 f

0

— — –40 dBc

Input VSWR (P

out

= 5.0 W) (1) VSWR

in

— 2.0:1 —

Load Mismatch (Vs1 = Vs2 = Vs3 = 9.0 Vdc; Load VSWR = 20:1;

P

out

= 5.0 W) (1)

ψ No Degradation in

Power Output

Before and After Test

Stability (Pin = 1.0 to 3.0 mW; Vs1 = Vs2 = Vs3 = 6.0 to 9.0 Vdc;

P

out

= 1.0 W to 5.0 W; Load VSWR = 8:1, All Phase Angles) (1)

— All Spurious Outputs

More Than 60 dB

Below Desired Signal

Quiescent Current (Vs1 = Vs2 = Vs3 = 7.5 Vdc; V

cont

= 7.0 Vdc; Pin = 0) I

Q

— 200 mA

NOTE:

1. Adjust V

cont

for specified P

out

Order this document

by MHW105/D

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SEMICONDUCTOR TECHNICAL DATA



5.0 W
68 to 88 MHz
VHF POWER

AMPLIFIER

CASE 301K–02, STYLE 3

 Motorola, Inc. 1994

MHW105
2

MOTOROLA RF DEVICE DATA

Figure 1. VHF Power Module Test Circuit Diagram

PIN NUMBERS653421

C2 C4 C5 C8 C9 C10

L1

L2 L3 L4

C1

C3 C5 C7

Z2

RF IN RF OUT

50

Ω

LOAD

10 dB

ATTEN.

SIGNAL GENERATOR

Vs1, V

s2

+7.5 V

@ 100 mA

(TYPICAL)

V

cont

7 Vdc
@ 230 mA
(TYPICAL)

V

s3

+7.5 V

@ 1.24 A

(TYPICAL)

Z1

C1, C2, C3, C4, C6, C7, C8, C9 — 18,000 pF CHIP
C5, C10 — 3.3 µF TANTALUM CHIP
L1, L2, L3, L4 — 0.2 µH
Z1, Z2 — 50 Ω MICROSTRIP LINE

Figure 2. Output Power versus Input Power Figure 3. Output Power versus Control Voltage

38
37

36
35
34
33
32
31
30

29
28

–15 –10 –5 0 5 10 15

Pin, INPUT POWER (dBm)

P

o

, OUTPUT POWER (dBm)

Vs1 = Vs2 = Vs3 = 7.5 V
f = 78 MHz

TC = –30°C, V

cont

= 3 V

TC = 25°C, V

cont

= 2.56 V

TC = 100°C, V

cont

= 2.73 V

45

0

V

cont

, CONTROL VOLTAGE (VOLTS)

P

o

, OUTPUT POWER (dBm)

40
35
30
25
20

15
10

5
0

–5

1 2 3 4 5 6 7 8

Pin = 0 dBm
Vs1 = Vs2 = Vs3 = 7.5 V
TC = 25°C

f = 78 MHz

68 MHz

88 MHz