TDA18218HN Datasheet, PDF (1/25 Pages) NXP Semiconductors – DVB-T Silicon Tuner IC

TDA18218HN
DVB-T Silicon Tuner IC
Rev. 01 — 8 July 2009
Product data sheet
1. General description
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
2. Features
I Fully integrated IF selectivity; eliminating the need for external SAW filters
I Fully integrated oscillators with no external components
I Integrated wideband gain control
I Alignment free
I RF loop-through for easy implementation in the Set-Top Box (STB)
I Integrated die thermal sensor
I Single 3.3 V power supply
I Low power consumption (750 mW)
I Crystal oscillator output buffer (16 MHz) for single crystal applications
I I²C-bus interface compatible with 3.3 V and 5 V microcontrollers
I Three Standby modes
I RoHS packaging
3. Applications
I DVB-T Set-Top Box (STB) and TV receiver
I System application optimization is described in the application note AN0814
I Driver application is described in the application note AN0822