TX4915

The TX4915 is a monolithic integrated circuit intended for use as a low-cost AM/ASK transmitter. The TX4915 chip can be used in applications in the north American and European VHF/UHF bands. The integrated VCO, phase detector, prescaler, and reference oscillator transistor require only the addition of an external crystal to provide a complete phaselocked loop. In addition to the standard power-down mode, the TX4915 chip also includes an automatic lock-detect feature that disables the transmitter output when the PLL is out-of-lock.