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PDF MHW903 Data sheet ( Hoja de datos )
| Número de pieza | MHW903 | |
| Descripción | 3.5 W 890 to 915 MHz RF POWER AMPLIFIERS | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MHW903 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
The RF Line
UHF Power Amplifiers
. . . designed specifically for the Pan European digital 2.0 watt, GSM hand–held
radio. The MHW903, MHW953 and MHW954 are capable of wide power range
control, operate from a 7.2 volt supply and require 1.0 mW (MHW903 / 953) or
100 mW (MHW954) of RF input power.
• Specified 7.2 Volt Characteristics:
RF Input Power — 1.0 mW (0 dBm) MHW903/ 953; 100 mW (20 dBm) MHW954
RF Output Power — 3.5 W
Minimum Gain — 35.4 dB (MHW903/ 953) or 15.4 dB (MHW954)
Harmonics — – 35 dBc Max @ 2.0 fo (MHW930 / 953) or
Harmonics — – 30 dBc Max @ 2.0 fo (MHW954)
• New Biasing and Control Techniques Providing Dynamic Range and Control
Circuit Bandwidth Ideal for GSM
• Low Control Current
• 50 Ohm Input / Output Impedances
• Guaranteed Stability and Ruggedness
• Test fixture circuit board photomaster available upon request by contacting
RF Tactical Marketing in Phoenix, AZ.
Order this document
by MHW903/D
MHW903
MHW953
MHW954
3.5 W
890 to 915 MHz
RF POWER
AMPLIFIERS
CASE 413A–02, STYLE 1
(MHW903)
MAXIMUM RATINGS (Flange Temperature = 25°C)
Rating
DC Supply Voltage
DC Bias Voltage (MHW903/ 953)
DC Bias Voltage (MHW954)
Symbol
Vs1, Vs2, Vs3
Vb
Value
9.0
5.25
4.75
Unit
Vdc
Vdc
CASE 301V–02, STYLE 1
(MHW953)
DC Control Voltage (MHW903/ 953 only)
RF Input Power (MHW903/953)
RF Input Power (MHW954)
Vcont
Pin
3.0 Vdc
2.0 mW
400
RF Output Power (Vs = 9.0 Vdc)
Operating Case Temperature Range
Storage Temperature Range
Pout
TC
Tstg
4.5
– 30 to + 100
W
°C
CASE 301Y–02, STYLE 1
(MHW954)
ELECTRICAL CHARACTERISTICS (Vs1 = Vs2 = Vs3 = 7.2 Vdc; Vb = 5.0 Vdc for MHW903/ 953)
ELECTRICAL CHARACTERISTICS (Vs1 = Vs2 = 7.2 Vdc; Vb = 4.5 Vdc for MHW954)
ELECTRICAL CHARACTERISTICS (TC = 25°C; 50 ohm system, unless otherwise noted)
Characteristic
Symbol Min Max Unit
Frequency Range
BW 890 915 MHz
Power Gain (Pout = 3.5 mW) MHW903 / 953 (1)
MHW954 (2)
GP 35.4 — dB
15.4 —
Control Current (Pout = 3.5 W; Pin = 1.0 mW) MHW903 / 953 only (1)
Supply Current (Pout = 3.5 W; Pin = 1.0 mW) MHW903 / 953 only (1)
Leakage Current (Pin = 0 mW; Vcont = Vb = 0 Vdc;
Vs1 = Vs2 = Vs3 = 9.0 Vdc for MHW903/ 953.
Pin = 0 mW; Vb = 0 Vdc; Vs1 = Vs2 = 9.0 Vdc for MHW954)
Input VSWR (Pout = 3.5 W; Pin = 1.0 mW) MHW903/ 953 (1)
Input VSWR (Pout = 3.5 W) MHW954 (2)
Icont
Ib
IL
— 1.0 mA
— 85 mA
— 1.0 mA
— 200 µA
VSWRin — 2.0:1 —
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
REV 6
©MMOotoTrOolaR, OIncL.A19R94F DEVICE DATA
MHW903 MHW953 MHW954
1
1 page  
APPLICATIONS INFORMATION
NOMINAL OPERATION
All electrical specifications are based on the nominal
conditions of Vs1 = Vs2 = Vs3 = 7.2 Vdc (Pins 2, 4, 5) and Vb
= 5.0 Vdc (Pin 3) for MHW903/953. Nominal conditions are
Vs1 = Vs2 = 7.2 Vdc (Pins 2 and 4) and Vb = 4.5 Vdc (Pin 3) for
MHW954. With these conditions, maximum current density on
any device is 1.5 x 105 A/cm2 and maximum die temperature
is 165°C. While the modules are designed to have excess gain
margin with ruggedness, operation of these units outside the
published specifications is not recommended unless prior
communications regarding intended use have been made
with the factory representative.
GAIN CONTROL
The module output power should be limited to specified
value. The preferred method of power control for the
MHW903/953 is to fix Vs1 = Vs2 = Vs3 = 7.2 Vdc, Vb = 5.0 Vdc,
Pin (Pin 1) at 1.0 mW, and vary Vcont (Pin 1) voltage. For the
MHW954, fix Vs1 = Vs2 = 7.2 Vdc and Vb = 4.5 Vdc; then vary
Pin (Pin 1) to control Pout (Pin 5).
DECOUPLING
Due to the high gain of the four stages and the module size
limitation, external decoupling networks require careful con-
sideration, Pins 2, 3, 4 and 5 are internally bypassed with a
0.018 µF chip capacitor which is effective for frequencies from
5.0 MHz through 940 MHz. For bypassing frequencies below
5.0 MHz, networks equivalent to that shown in Figure 1 are
recommended. Inadequate decoupling will result in spurious
outputs at certain operating frequencies and certain phase
angles of input and output VSWR.
MOUNTING CONSIDERATIONS
For the MHW903 Series module, mounting is generally
accomplished by soldering the flange to a suitable heat sink.
This can be done with a low temperature solder such as 52%
In, 48% Sn and type “R” Flux which liquifies below 150°C.
Under no circumstances should the MHW903 Series modules
be heated to a temperature greater than ≈165°C. Internal
construction of the module has been achieved using 36% Tin,
62% lead, 2% silver solder which liquifies at 179– 180°C.
The modules are NOT hermetic. Do not immerse a module
in a flux cleaning solution or other liquids under any
circumstances.
LOAD MISMATCH
During final test each module is load mismatch tested in a
fixture having the identical decoupling networks described in
Figure 1. Electrical conditions are Vs1 = Vs2 = Vs3 = 9.0 Vdc
(Pins 2, 4, 5), and Vb = 5.0 Vdc (Pin 3), Pin = 2.0 mW (12.5%
duty cycle, 4.6 ms period), VSWR equal to 10:1, and output
power equal to 4.5 watts.
MOTOROLA RF DEVICE DATA
MHW903 MHW953 MHW954
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MHW903.PDF ] | |
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