Radio frequency integrated circuit having frequency dependent noise mitigation with spectrum spreading
First Claim
1. A radio frequency integrated circuit (RFIC) comprising:
- a low noise amplifier coupled to amplify an inbound radio frequency (RF) signal to produce an amplified RF signal;
a down conversion module coupled to convert the amplified RF signal to a down converted signal based on a local oscillation;
an analog to digital conversion (ADC) module coupled to convert the down converted signal into a digital signal;
a baseband processing module coupled to convert the digital signal into inbound data, wherein at least one function of the baseband processing module is clocked by a plurality of baseband clock signals wherein the at least one function of the baseband processing module includes at least one of intermediate frequency to baseband conversion, fast Fourier transform, demapping, deinterleaving, decoding, and descrambling; and
a clock module coupled to produce the plurality of baseband clock signals, wherein the clock module detects an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with the inbound RF signal, and that spreads the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected.
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Accused Products
Abstract
A radio frequency integrated circuit (RFIC) includes a low noise amplifier that amplifies an inbound radio frequency (RF) signal to produce an amplified RF signal. A down conversion module converts the amplified RF signal to a down converted signal based on a local oscillation. An analog to digital conversion (ADC) module coupled to convert the down converted signal into a digital signal. A baseband processing module converts the digital signal into inbound data, wherein at least one function of the baseband processing module is clocked by a plurality of baseband clock signals A clock module produces the plurality of baseband clock signals, wherein the clock module detects an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with the inbound RF signal, and spreads the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected.
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Citations
23 Claims
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1. A radio frequency integrated circuit (RFIC) comprising:
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a low noise amplifier coupled to amplify an inbound radio frequency (RF) signal to produce an amplified RF signal; a down conversion module coupled to convert the amplified RF signal to a down converted signal based on a local oscillation; an analog to digital conversion (ADC) module coupled to convert the down converted signal into a digital signal; a baseband processing module coupled to convert the digital signal into inbound data, wherein at least one function of the baseband processing module is clocked by a plurality of baseband clock signals wherein the at least one function of the baseband processing module includes at least one of intermediate frequency to baseband conversion, fast Fourier transform, demapping, deinterleaving, decoding, and descrambling; and a clock module coupled to produce the plurality of baseband clock signals, wherein the clock module detects an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with the inbound RF signal, and that spreads the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio frequency integrated circuit (RFIC) comprising:
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a low noise amplifier coupled to amplify an inbound radio frequency (RF) signal to produce an amplified RF signal; a down conversion module coupled to convert the amplified RF signal to a down converted signal based on a local oscillation; an analog to digital conversion (ADC) module coupled to convert the down converted signal into a digital signal; a baseband processing module coupled to convert the digital signal into inbound data, wherein at least one function of the baseband processing module is clocked by a plurality of baseband clock signals; and a clock module coupled to produce the plurality of baseband clock signals, wherein the clock module detects an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with the inbound RF signal, and that spreads the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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amplifying an inbound radio frequency (RF) signal to produce an amplified RF signal; converting the amplified RF signal to a down converted signal based on a local oscillation; converting the down converted signal into a digital signal; generating a plurality of baseband clock signals, by detecting an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with the inbound RF signal, and spreading the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected; and converting the digital signal into inbound data based on at least one function that is clocked by the plurality of baseband clock signals. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for generating a plurality of baseband clock signals, the method comprising:
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detecting an interference condition when frequency dependent noise components associated with at least one of the plurality of baseband clock signals are inside a frequency band associated with an inbound RF signal; and spreading the spectrum of the at least one of the plurality of baseband clock signals when the interference condition is detected.
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Specification