The PLL transmitter exciter has the functions of providing a stable, low noise, frequency-selectable RF signal and amplify it to a controllable output power sufficient to drive the power amplifier. It ...

The Si4720 internal block diagram, ... If you need a small FM transmitter and have a cavalier attitude to spectral purity then it’s easy enough to use ... (using a phase-locked loop, or PLL) ...

This BH1417 pll fm transmitter includes features like: pre-emphasis, sound limiter, stereo transmission, low pass filter, pll circuit, fm oscillator and rf output buffer. The sound limiter maintains ...