Description

The TX4915 is a low power ASK transmitter IC intended for applications in the North American and European VHF/UHF bands. The integrated voltage-controlled oscillator (VCO), phase/frequency detector, prescaler, and reference oscillator require only the addition of an external crystal to provide a complete phase-locked loop (PLL). In addition to the standard power-down mode, the chip also includes an automatic lock-detect feature that disables the transmitter output when the PLL is out-of-lock.

Features

◆ Output frequency range: 300 – 960 MHz

◆ Supply voltage range: 2.2 – 3.6 V

◆ Low current consumption with power down capability

◆ On-chip VCO with integrated PLL (÷ 64/128) dual modulus prescaler

◆ Out-of-lock inhibit circuit

◆ SSOP-16 package (0.64 mm pitch)

Applications

◆ Wireless mouse

◆ Car alarm and home security systems

◆ Remote control systems