TDA18218HN: DVB-T Silicon Tuner IC ARCHIVED

Overview

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The TDA18218HN is a Silicon Tuner IC designed for digital terrestrial (DVB-T) TV reception. The TDA18218HN integrates the overall tuning function, including selectivity and provides a low-IF output signal.

The TDA18218HN uses integrated IF filters to support 6 MHz, 7 MHz or 8 MHz channel bandwidths. The TDA18218HN requires only one single 16 MHz crystal for clock generation. A clock signal is available on crystal oscillator output pins (XTO_P / XTO_N) to synchronize the channel decoder.

The TDA18218HN is a low cost Silicon Tuner targeting digital terrestrial applications. The TDA18218HN matches the performance of the conventional can tuners. Additionally, the following benefits can be stated:

Easy on-board integration
Drastically reduces:
- the size of the tuner function
- the power consumption

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Features

Fully integrated IF selectivity; eliminating the need for external SAW filters
Fully integrated oscillators with no external components
Integrated wideband gain control
Alignment free
RF loop-through for easy implementation in the Set-Top Box (STB)
Integrated die thermal sensor
Single 3.3 V power supply
Low power consumption (750 mW)
Crystal oscillator output buffer (16 MHz) for single crystal applications
I²C-bus interface compatible with 3.3 V and 5 V microcontrollers
Three Standby modes
RoHS packaging

Target Applications

DVB-T Set-Top Box (STB) and TV receiver
System application optimization is described in the application note AN0814
Driver application is described in the application note AN0822

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Features

Fully integrated IF selectivity; eliminating the need for external SAW filters
Fully integrated oscillators with no external components
Integrated wideband gain control
Alignment free
RF loop-through for easy implementation in the Set-Top Box (STB)
Integrated die thermal sensor
Single 3.3 V power supply
Low power consumption (750 mW)
Crystal oscillator output buffer (16 MHz) for single crystal applications
I²C-bus interface compatible with 3.3 V and 5 V microcontrollers
Three Standby modes
RoHS packaging

Target Applications

DVB-T Set-Top Box (STB) and TV receiver
System application optimization is described in the application note AN0814
Driver application is described in the application note AN0822

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