论文信息 - A fully integrated translational tracking filter with >40dB blocker attenuation and >68dB harmonic rejection in 40nm for Digital TV tuner applications

A fully integrated translational tracking filter with >40dB blocker attenuation and >68dB harmonic rejection in 40nm for Digital TV tuner applications

A fully integrated tunable high-quality-factor bandpass translational tracking filter (TTF) for Digital TV tuners is presented. The center frequency and bandwidth of the TTF are determined by LO and capacitor arrays, which are fully tunable. The TTF has multiple signal paths and LO phases to boost the blocker attenuation and harmonic rejection. Without any calibration, the TTF achieves >40dB blocker suppression at >180MHz frequency offsets and >68dB harmonic rejection for all harmonics. Implemented in a 40nm CMOS process, the noise figure and IIP3 of the full tuner are 4 dB and -30 dBm, respectively at the highest gain setting while dissipating 50 mA from a 3.3V supply.

[1] Eric A. M. Klumperink,et al. Tunable High-Q N-Path Band-Pass Filters: Modeling and Verification , 2011, IEEE Journal of Solid-State Circuits.

[2] D. Flandre,et al. Fully Integrated High-Q Switched Capacitor Bandpass Filter with Center Frequency and Bandwidth Tuning , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[3] Ahmad Mirzaei,et al. Analysis and Optimization of Direct-Conversion Receivers With 25% Duty-Cycle Current-Driven Passive Mixers , 2010, IEEE Transactions on Circuits and Systems I: Regular Papers.

[4] Jaeyoung Choi,et al. A CMOS Wideband RF Front-End With Mismatch Calibrated Harmonic Rejection Mixer for Terrestrial Digital TV Tuner Applications , 2010, IEEE Transactions on Microwave Theory and Techniques.

[5] Ahmad Mirzaei,et al. A Low-Power Process-Scalable Super-Heterodyne Receiver With Integrated High-$Q$ Filters , 2011, IEEE Journal of Solid-State Circuits.

[6] Kuan-Chun Chen,et al. A low-cost SAW-less GSM/GPRS SoC with integrated connectivity and 32-kHz crystal removal in 55nm , 2013, 2013 Symposium on VLSI Circuits.