世平集团所代理的NXP最近推出新型硅调谐器TDA18271，该产品延续前一代TDA8275A硅调谐器的优良品质，不但兼容所有的模拟与数字电视标准(PAL、NTSC、SECAM、DVB-T、ISDB-T、ATSC、DVB-C)，且TDA18271芯片本身可将low-IF signal传递至digital IF demodulator TDA8290/TDA8295(模拟电视)与channel decoder TDA10046/TDA10048(数字电视)。

    相较于目前市场的的其它芯片，NXP TDA18271主要的功能与特色如下：

    Low power consumption

    Multi-standard off-air / cable

    Fully integrated RF tracking filters for unwanted signal suppression

    Fully integrated IF selectivity (no need for external SAW filters)

    RF loop-through to drive a secondary TV receiving consumer equipment

    Optimized second tuner output for straightforward multi-silicon tuner application.

    Fully integrated oscillators with no external component

    Integrated wide-band gain control

    Package: HLQFN64

    适用产品范围:

    PCTV

    STB, DVD-RW

    中小型尺寸LCD TV(27英寸以下)

    目前世平集团之NXP产品人员已着手发展TDA18271+TDA8295的模拟模块与PCI-E的PCTV卡。

                                   PCTV应用框图

                            双调谐器应用框图

                            单调谐器应用框图