Xuankai Weng

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This paper presents a direct-conversion DTV tuner for both VHF and UHF bands. The proposed tuner achieves a noise figure of 2.5–3.5 dB at VHF band and 2–3 dB at UHF band while the LNA consumes only 3.5 mW. An external band-pass LC filter is adopted for RF pre-filtering and providing DC conduction path for noise cancelling balun LNA. The system-level(More)
A low power fully integrated digital TV tuner chip for China Mobile Multimedia Broadcasting (CMMB) application is presented. Based on direction conversion architecture, analog 8th-order filter/gain stages utilizing high power efficient operation-amplifiers and a ΣΔ fractional-N phase locked loop (PLL) with one voltage controlled oscillator (VCO) covering(More)
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