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UM109-1A

UM109-1A

The UM109-1A is 5 Watt FM amplifier module covering a bandwidth of 33-39 MHz. This dual stage amplifier is specifically designed for Land Mobile VHF band portable radio applications.

Power RF Amplifier:

  • Power = 5 Watts
  • Bandwidth = 33 to 39 MHz
  • Gain = 30dB
  • Vdd = 9.6 Volts
  • 50 Ohms Input/Output Impedances
  • Copper Flange
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Absolute Maximum Ratings (T=25°C)

ParameterSymbolValueUnit
DC supply Voltage Vcc 12 V
DC bias Voltage, Power control Vbb 9.6 V
Input Power Pin 30 mW
Output Power Pout 10 W
Operating Case Temp. Tc -40 to +85 °C
Storage Temperature Tstg -60 to +100 °C

Electrical Characteristics: (Tc = 25°C, Zs = Zl = 50 Ohms. Vcc = 9.6 Volts. Vbb = 9.6 Volts)

ParameterSymbolMinTypicalMaxUnitTest Conditions
Frequency Range BW 33   39 MHz 50 Ohm load
Output Power Pout 5     Watts  
Power Gain PG 30     dB  
Total Efficiency h 45 55   % Po=5W, CW
2nd Harmonic F2   -40 -30 dBc  
3nd Harmonic F3   -40 -30 dBc  
Load Mismatch Ψ No degradation or destroy   Pin=10mW,
Po=6W, VSWR =20

Block diagram

  • RF input
  • Gate Voltage (Vgg), Power Control
  • Drain Voltage (Vdd)
  • RF Output (Pout)
  • RF Ground (Case)

Test block diagram

  • С1 - 0.1uF
  • C2 - 100uF