System and Method for Configurable Multi-standard Receiver
First Claim
1. A multi-standard radio receiver configurable to operate in a plurality of operation modes, comprising:
- a mixer coupled to an input signal and a local oscillation signal to provide a mixer output signal, wherein the mixer output signal comprises an in-phase signal and a quadrature signal;
a processing module coupled to receive the mixer output signal having a first control, wherein the first control configures the processing module based on the plurality of operation modes; and
an analog to digital converter (ADC) having a second control, wherein the second control configures the ADC based on the plurality of operation modes.
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Abstract
A configurable multi-standard receiver. A receiver comprises a mixer, a processing module and an analog to digital converter is disclosed to receive multi-standard radio signals. The processing module includes a first selection switch and first parameter control, where the first selection switch configures the processing module as a complex filter or a real-valued filter and the first parameter control configures the characteristics of the filter. Furthermore, the analog to digital converted is preferably implemented using sigma delta modulation to achieve a desired noise shaping. The sigma delta modulation comprises a second selection switch and second parameter control. The second selection switch configures the sigma delta modulation to function as a unit having a complex loop filter or a unit having real-valued loop filters. The second parameter control configures the characteristics of the loop filter. The settings for the first and second selection switches and the first and second control parameters may be stored in a control register.
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Citations
19 Claims
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1. A multi-standard radio receiver configurable to operate in a plurality of operation modes, comprising:
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a mixer coupled to an input signal and a local oscillation signal to provide a mixer output signal, wherein the mixer output signal comprises an in-phase signal and a quadrature signal; a processing module coupled to receive the mixer output signal having a first control, wherein the first control configures the processing module based on the plurality of operation modes; and an analog to digital converter (ADC) having a second control, wherein the second control configures the ADC based on the plurality of operation modes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated multi-standard television tuner configurable to operate in a plurality of operation modes, comprising:
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a RF circuit coupled to receive a RF input signal to amplify the RF input signal; a mixer coupled to receive the amplified RF input signal and a local oscillation signal to provide a mixer output signal, wherein the mixer output signal comprises an in-phase signal and a quadrature signal; a processing module coupled to receive the mixer output signal having a first control, wherein the first control configures the processing module based on the plurality of operation modes; and an analog to digital converter having a second control, wherein the second control configures the analog to digital converter (ADC) based on the plurality of operation modes; wherein the RF circuit, the mixer, the processing module and the analog to digital converter are integrated on a same semiconductor substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of demodulating a multi-standard radio signal using a configurable receiver having a plurality of operation modes, the method comprising:
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mixing an input signal and a local oscillation signal to provide a mixer output signal, wherein the mixer output signal comprises an in-phase output signal and a quadrature output signal; filtering the mixer output signal using a configurable filter, wherein the configurable filter is configured as a real-valued filter or a complex filter based on the plurality of operation modes; and converting the filtered mixer output signal into a digital signal using a configurable sigma delta modulator (SDM), wherein the configurable SDM is configured as a real-valued SDM or a complex SDM based on the plurality of operation modes.
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Specification