TIDA-00347, TRF37A73 Low Frequency RF Amplifier Reference Design

Reference design by: Texas Instruments

TIDA-00347, TRF37A73 Low Frequency RF Amplifier Reference Design

TIDA-00347, Low Frequency RF Amplifier Reference Design. Wideband RF amplifiers require external coupling capacitors and an RF choke to supply bias to the output transistor collector. As the frequency of operation is reduced, the choice of these components must be modified to maintain proper gain and linearity in the device. This design provides the circuit modification recommendations for operating a wideband RF amplifier device like the TRF37A73 in the low frequency range. A full complement of testing over temperature and voltage is provided for very low frequencies (1 to 50 MHz) to illustrate the effectiveness of the design