DBS电视接收机低中频与直接转换调谐器的比较

Comparison of Low-IF and Direct-Conversion Tuners for DBS TV Receivers

CMOS技术是把L波段卫星调谐器、解调器和其它功能整合至低成本、高效能单芯片的关键。本文将探讨新型低中频和传统零中频DBS调谐器架构在单芯片DBS射频前端设计中的优缺点。

Utilizing CMOS is the key to low-cost, high-performance, single-chip integration of the satellite L-band tuner, demodulator and other functional blocks. This article explores the trade-offs between novel low-IF and legacy zero-IF DBS tuner architectures in light of a monolithic IC implementation of the complete DBS RF front end.