Patent ID: 8306492
Filing Date: 2012-11-06
Classification: H03J,H04N,Y10T

Abstract:
1. A TV tuner having a Very High Frequency (VHF) tracking filter, a VHF matching circuit and a single conversion Tuner IC, characterized in that: the VHF tracking filter comprising at least one first Low-Temperature Co-fired Ceramics (LTCC) inductor, a first varactor diode and a fine-tune capacitor electrically connected to determine the maximum gain frequency of the VHF tracking filter; the VHF matching circuit comprising at least one second LTCC inductor, a second varactor diode and a capacitor electrically connected to determine the maximum gain frequency of the VHF matching circuit; a pre-amplifier, electrically connected to inputs of the VHF tracking filter, for amplifying input signals; and a second amplifier, electrically connected between the VHF tracking filter and the VHF matching circuit, for amplifying the output signals of the VHF tracking filter.