15W FM Stereo Transmitter BH1415F
FM stereo transmitter assembly costs by BH1415F relatively cheap because all parts FM stereo transmitter has been included in the IC BH1415F. The chip consist of oscillators, pll, pre-emphasis, limitter, low pass filter, and a stereo FM modulator. FM transmission signal is very stable because it has been using a PLL system with serial input data (CE, CK, DA). Power output of BH1415F reinforced with several transistors and RD15HVF1 as the final amplifier so the circuits can produce a power output up to 15W.
15W stereo FM transmitter scheme using BH1415F & RD15HVF1 can be found here: