RA13H8891MA PDF Datasheet
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Description
This is 2 Stage Amp.
MITSUBISHI RF MOSFET MODULE
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
RA13H8891MA
BLOCK DIAGRAM
2 3
RoHS Compliance , 889-915MH- 13W 12.5V, 2 Stage Amp. For MOBILE RADIO
DESCRIPTION The RA13H8891MA is a 13-watt RF MOSFET Amplifier Module for 12.5-volt mobile radios that operate in the 889- to 915-MH- 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 3.5V (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 quiesce.