The TDA18271HD is a Silicon Tuner IC designed mainly for terrestrial analog and digital TV reception. It is compatible with all analog and digital TV standards and delivers a low IF signal to a demodulator (for analog TV) and/or channel decoder (for digital TV).
The TDA18271HD is a Silicon Tuner IC designed mainly for terrestrial analog and digital TV reception. It integrates the complete tuning function, delivering a low‑IF signal to a demodulator or channel decoder.
The device supports both TV and FM reception, offers dual‑tuner operation with master/slave modes, and includes integrated RF tracking filters, IF selectivity, and a 3.3 V single‑supply design. The data sheet details pin configurations, functional blocks, reference data, and application notes.
| RF frequency range | 45 – 864 MHz |
|---|---|
| Power dissipation | 780 mW |
| Maximum input voltage (1 dB compression) | 1 dB gain compression |
| Image rejection | 65 dB |
| Analog sensitivity (video SNR) | 50 dB |
The tuner operates from 45 MHz up to 864 MHz.
Typical power dissipation is 780 mW.