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Integrated radio broadcasting receiver

A radio broadcasting and receiver technology, applied in the field of microelectronics, can solve the problems of unfavorable high integration, low cost, high performance receiver, and high receiver complexity

Active Publication Date: 2012-12-12
KTMICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of whether LC oscillator circuit or PLL or DDFS is used, the complexity of the receiver will be high, which is not conducive to the design of a highly integrated, low-cost, high-performance receiver

Method used

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  • Integrated radio broadcasting receiver
  • Integrated radio broadcasting receiver
  • Integrated radio broadcasting receiver

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 As shown, it is a structural schematic diagram of the first embodiment of the integrated radio broadcast receiver of the present invention, and the integrated radio broadcast receiver may include an analog quadrature mixer 11, an analog-to-digital converter 12, a digital local oscillator generator 14, a digital positive Mixer 15, demodulation module 16, frequency divider 17, inverter 18 and controller 19, the above devices are integrated in a single integrated circuit.

[0034] The analog quadrature mixer 11 is connected with the frequency divider 17, the analog-to-digital converter 12 is connected with the analog quadrature mixer 11, and the digital quadrature mixer 15 is connected with the analog-to-digital converter 12 and the digital local oscillator generator 14 , the demodulation module 16 is connected with the di...

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Abstract

The invention relates to an integrated radio broadcasting receiver. The integrated radio broadcasting receiver comprises a simulative orthogonal mixer, an analog-to-digital converter, a digital local oscillation generator, a digital orthogonal mixer, a demodulating module, a frequency divider, an inverter and a controller, wherein the inverter is connected between the digital local oscillation generator and the digital orthogonal mixer or between the analog-to-digital converter and the digital orthogonal mixer; the controller is connected with the frequency divider, the digital local oscillation generator and the inverter; the simulative orthogonal mixer, the analog-to-digital converter, the digital local oscillation generator, the digital orthogonal mixer, the demodulating module, the frequency divider, the inverter and the controller are integrated in a single integrated circuit. By adopting the integrated radio broadcasting receiver, the complexity of the receiver is reduced; and the receiver with high integration level, low cost and high performance can be designed conveniently.

Description

technical field [0001] The invention relates to the field of microelectronics, in particular to an integrated radio broadcast receiver. Background technique [0002] The traditional radio broadcast receiver generally adopts a superheterodyne structure. After the radio broadcast signal received by the magnetic rod antenna is amplified by frequency selection, it is mixed with a local oscillator signal, and then the intermediate frequency signal is selected through a band-pass filter. After the intermediate frequency signal is amplified, the envelope detection is carried out to obtain the audio signal. in,. With the development of digital signal processing technology, a digital radio broadcast receiver appears. The digital radio broadcast receiver converts the radio broadcast signal into an intermediate frequency signal after performing quadrature mixing on the radio broadcast signal and two orthogonal local oscillator signals. , and then perform analog-to-digital conversion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/16H04H40/18
Inventor 李振蒋耀丽李旭芳
Owner KTMICRO ELECTRONICS