General description

The TDA18291HN is a BiCMOS integrated circuit receiver intended for digital TV reception for low power applications (e.g. mobile phone and PDA).

The tuner is designed for the terrestrial digital video broadcast (DVB-T standard) and handheld DVB standard (DVB-H standard). It operates in the VHFIII and UHF band (174 MHz to 230 MHz and 470 MHz to 862 MHz) and contains all the functions needed for a whole receiver chain from (RF) input to baseband IQ outputs: LNA, quadrature mixer, channel filters and a complete RF PLL with a fully integrated VCO. The PLL can operate from a number of reference frequencies, fitting almost any mobile platform.

Features

■ 150 mW power consumption in DVB-T mode

■ 4 dB noise figure

■ Direct conversion ZIF architecture

■ 174 MHz to 230 MHz and 470 MHz to 862 MHz tuning range

■ Low noise, wide dynamic receiver

■ Fully integrated balanced LNA

■ Fully integrated channel filters with built-in self-calibration

■ Fully integrated fractional N frequency synthesizer

■ Fully integrated VCO

■ I2C-bus controllable

■ Dedicated pin for DVB-H time slicing control

■ 19.2 MHz, 26 MHz and 38.4 MHz reference frequency compliant

■ HVQFN32 package (5 mm × 5 mm)