RA55H4452M
RoHS Compliance , 440-520MHz 55W 12.5V, 3 Stage Amp. For MOBILE RADIO
DESCRIPTION
The RA55H4452M is a 55-watt RF MOSFET Amplifier Module for
12.5-volt mobile radios that operate in the 440- to 520-MHz range.
The battery can be connected directly to the drain of the
enhancement-mode MOSFET transistors. Without the gate voltage
(VGG=0V), only a small leakage current flows into the drain and the RF
input signal attenuates up to 60 dB. The output power and drain current
increase as the gate voltage increases. With a gate voltage around
4V (minimum), output power and drain current increases substantially.
The nominal output power becomes available at 4.5V (typical) and 5V
(maximum). At VGG=5V, the typical gate current is 1 mA.
This module is designed for non-linear FM modulation, but may also be
used for linear modulation by setting the drain quiescent current with
the gate voltage and controlling the output power with the input power.
3
1
4
5
1
RF Input (Pin)
Gate Voltage (VGG), Power Control
3
Drain Voltage (VDD), Battery
4
Pout>45W, ηT>35% @ f=491-520MHz,
VDD=12.5V, VGG=5V, Pin=50mW
• Broadband Frequency Range: 440-520MHz
• Low-Power Control Current IGG=1mA (typ) at VGG=5V
• Module Size: 66 x 21 x 9.88 mm
• Linear operation is possible by setting the quiescent drain current with
the gate voltage and controlling the output power with the input power
RoHS COMPLIANCE
• RA55H4452M-101 is a RoHS compliant products.
• RoHS compliance is indicate by the letter “G” after the Lot Marking.
• This product include the lead in the Glass of electronic parts and the lead in
electronic Ceramic parts.
However, it is applicable to the following exceptions of RoHS Directions.
1.Lead in the Glass of a cathode-ray tube, electronic parts, and fluorescent
tubes.
2.Lead in electronic Ceramic parts.
ORDERING INFORMATION:
SUPPLY FORM
Antistatic tray,
10 modules/tray
Publication Date : Oct.2011
1
RF Output (Pout)
5
• Pout>55W, ηT>43% @ f=440-490MHz,
RA55H4452M-101
2
2
FEATURES
• Enhancement- Mode MOSFET Transistors
(IDD≅0 @ VDD=12.5V, VGG=0V)
ORDER NUMBER
BLOCK DIAGRAM
RF Ground (Case)
PACKAGE CODE: H2S
