ST 凭借丰富的 RF 处理技术和设计经验提供高性能、高度集成、低功耗调谐器器件，支持各种主流数字无线电广播系统。
主要特点
■多架构解决方案：- 超外差中频 (IF) 输出和零中频 (zero-IF) 基带信号输出 - 宽带与窄带调谐器 - 集成式陆地与卫星配备
■高度集成
■低功耗

STA011
Description
The STA011 is an RF IC using STMicroelectronics BiCMOS6G high speed technology for one chip solution for the digital satellite radio receiver. The STA011 is assembled in a TQFP44 package. The front-end architecture is a double conversion receiver (see block diagram). The chip includes all the RF functions up to low IF and it manages the signals going to and coming from the base-band.

Key Features
Single chip receiver for satellite andterrestrial digital radio
Super-heterodyne tuner with low IF output
High input intercept point
Low noise IC
RF image rejection mixer
Adjustable RF and IF gain
54 dB IF VGA gain range
Integrated RF and IF VCOs
Integrated synthesizers
Low cost external components
I2C-bus slave control interface
Unregulated 2.7 to 3.3V supply voltage