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CMOS integrated super-heterodyne television receiver with multiple signal paths

A signal path and integrated circuit technology, applied in the direction of TV, color TV, color TV parts, etc.

Active Publication Date: 2009-03-11
MONTAGE TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] For convenience, it should be understood that BiCMOS chips are not referred to as CMOS chips in this description

Method used

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  • CMOS integrated super-heterodyne television receiver with multiple signal paths
  • CMOS integrated super-heterodyne television receiver with multiple signal paths
  • CMOS integrated super-heterodyne television receiver with multiple signal paths

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Embodiment Construction

[0034] The following description and drawings illustrate the invention and should not be construed as limiting the invention. The description of numerous specific details is intended to provide a thorough understanding of the present invention. However, in certain instances, well-known or conventional details have not been described in order not to obscure the description of the present invention. References to one or an embodiment in this disclosure are not necessarily references to the same embodiment; and such references mean at least one.

[0035] One embodiment of the present invention provides a CMOS integrated superheterodyne television receiver with multiple signal paths. A single CMOS chip is used to implement most components of the tuner / receiver, including the low-noise amplifier and down-conversion mixer.

[0036] Integrated superheterodyne television receivers according to embodiments of the present invention may be used in terrestrial or cable television applic...

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Abstract

Integrated super-heterodyne television receivers with multiple signal paths implemented using CMOS technology. An integrated circuit, includes: a plurality of CMOS (Complementary Metal-Oxide Semiconductor) low noise amplifiers; an adjustable frequency source; and one or more down-conversion mixers coupled with the adjustable frequency source and the plurality of CMOS low noise amplifiers to form a plurality of super-heterodyne receiving paths between an input to the plurality of CMOS low noise amplifiers and an output from one or more down- conversion mixers; where the integrated circuit is implemented on a single chip of semiconductive substrate.

Description

technical field [0001] At least some embodiments of the invention relate generally to television receivers, and more particularly to integrated superheterodyne television receivers. Background technique [0002] Two frequencies can be mixed during heterodyning to produce a sum and a difference. A superheterodyne receiver mixes a high frequency input signal with a local oscillator frequency generated in the receiver to produce a signal having a frequency that is the difference between the frequency of the input signal and the local oscillator frequency generated in the receiver. The generated signal is usually designed to have a predetermined frequency called an intermediate frequency (IF), so that signals with higher input frequencies can be down-converted for processing at the predetermined intermediate frequency (IF). The local oscillator frequency can be adjusted so that the signal received in the desired frequency channel can be down-converted to an intermediate frequen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44H04N5/50G09G5/00
CPCH03F3/189H03F3/72
Inventor 戴光耀
Owner MONTAGE TECHNOLOGY CO LTD