Abstract
A low-cost low-power DTV tuner for current digital television application is described. In order to increase integration level and reduce power consumption for off-air DTV tuner application, an SAW-filterless tuner front-end architecture is adopted. As a part of the concept, key building blocks for this architecture are implemented on a main stream 0.35 μm CMOS technology. Experimental measurements for the prototype chip validate the system architecture; the prototype consumes 300 mw and achieves 45 dB of image rejection ratio within the entire 750 MHz frequency band.
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