PLL FM Oscillator | FM Transmitter Circuit

PLL Synthesizer for Wideband FM Transmitter

Here's a PLL Synthesizer circuit is based on SA1057 and PIC16F84 that converts any existing FM Transmitter into stable rock-solid PLL transmitter. Frequency is selected through 8-DIP switch. PLL Synthesizer board will also require a 100K resistor and varicap diode such as MV2105 or MV2109 to control the frequency of the transmitter's oscillator.FeaturesPower supply: 8-15 V stabilized, 40 mA Frequency range: 82,5-108 MHz Step... [ more ]