A wideband single-PLL RF receiver for simultaneous multi-band and multi-channel digital car Radio reception

Abstract

This paper describes a single-PLL, fixed-oscillator, wide-band multi-tuner HD Radio & DAB/T-DMB receiver for concurrent multi-band & multi-channel car radio reception, fully integrated in a 65nm CMOS SoC. Besides saving area and power for the LO and clock generation, the presented architecture also prevents oscillator pulling and spurs. Harmonic rejection mixers have been used to suppress down-conversion with LO harmonics up to 60dB, which reduces the required amount of RF filtering. The DAB measurement results show best-in-class blocker performance (FoS up to 70dBc) in combination with state-of-the-art sensitivity down to -102dBm.