NXP推出新型硅调谐器方案，助力中小型液晶电视设计

世平集团代理NXP(前身飞利浦半导体)二十年。NXP延续前一代TDA8275A silicon tuner的优良品质，推出TDA18271新产品，此芯片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)，且芯片本身可将low-IF signal传递至digital IF demodulator TDA8290/TDA8295 (analog TV)与channel decoder TDA10046/TDA10048 (digital TV)。

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：

1. Low power consumption

2. Multi-standard off-air / cable

3. Fully integrated RF tracking filters for unwanted signal suppression

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

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

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

7. Fully integrated oscillators with no external component

8. Integrated wide-band gain control

9. Package: HLQFN64

适用产品范围:

1. PCTV

2. STB, DVD-RW

3. 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analog模块与PCI-E的PCTV card，若有进一步需求，欢迎即刻洽询产品线相关人员。

PCTV应用框图

双调谐器应用框图

单调谐器应用框图