TDA18250HN

TDA18250HN Cable Silicon Tuner Rev. 6 — 22 December 2011 Product short data sheet 1. General description The TDA18250 is a silicon tuner IC designed specifically for high definition cable Set-Top Boxes (STB) supporting single streaming. Used in conjunction with a digital channel demodulator, the TDA18250 covers all worldwide digital cable standards. The TDA18250 ensures a low system cost as: – Costly components such as low-noise amplifiers, Surface Acoustic Wave (SAW) filters are eliminated from the system BOM The TDA18250 high-performance silicon tuner meets today’s digital cable TV reception needs with: – Low power consumption – High linearity – Low noise figure The TDA18250 ensures ease of use with: – Easy on-board integration – Efficient and effective PCB design – Reduced external components 2. Features and benefits  RF frequency coverage up to 1002 MHz  Integrated wideband gain control  LOW IF (LIF) output  Single 3.3 V power supply  Low power consumption  Multistandard cable receptions  Fully integrated IF selectivity, eliminating the need for external SAW filters  RF Loop-Through (LT)  Enhanced RF and IF filters to increase selectivity and adjacent channels filtering  Alignment free  Fully integrated oscillators:  No external oscillator components for reduced cost  16 MHz crystal oscillator output buffer for single crystal applications  Supports 2 tuner functions specifically aimed for PVR boxes:  1  RF output to drive slave tuner NXP Semicondu...