A direct-conversion tuner is fabricated in a 0.18mum CMOS process. The vertical BJT is adopted to minimize the effects of 1/f noise. The tuner has a NF of 4.5dB (5dB), IIP3 of -5dBm (-6dBm), IIP2 of >40dBm, sensitivity of -89dBm (-88.5dBm) for 16-QAM CR frac12, and draws 66mA (74mA) from a 2.8V for UHF (USA L-band)
