Notice of Violation of IEEE Publication PrinciplesZero-Second-IF SiGe BiCMOS Satellite Radio Tuner Using a Dual RF/IF AGC Loop

A 0.2 mum SiGe BiCMOS tuner for digital satellite audio radio applications was realized using a second-zero-IF dual conversion architecture with autonomous RF AGC and channel decoder controlled IF AGC. A single PLL drives both RF and IF mixers, resulting in a smaller die area and lower power dissipation. Providing a baseband I/Q output further reduces receiver's power due to a lower ADC and digital core operating frequency. SDARS tuner performance includes: 5dB noise figure, 55dB image rejection, -96 dBm input sensitivity, 100 mA current from a 3.3 V supply and 12 mm2 die area.