Device and method for providing filtering for an analog-to-digital converter (ADC)
AssigneeNXP B.V.
InventorsSujan Pandey, Hubertus Gerardus Hendrikus Vermeulen, Abhijit Kumar Deb
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Abstract
Devices and methods for providing filtering for an analog-to-digital converter (ADC) are described. In one embodiment, a method for providing filtering for an ADC involves obtaining a filter coefficient of a post-filtering filter that is located after the ADC on a signal path and generating a filter coefficient of a pre-filtering filter that is located before the ADC on the signal path based on the filter coefficient of the post-filtering filter. Other embodiments are also described.
Claims20
A method for providing filtering for an analog-to-digital converter (ADC), the method comprising:
- obtaining a filter coefficient of a post-filtering filter that is located after the ADC on a signal path;
- and
- generating a filter coefficient of a pre-filtering filter that is located before the ADC on the signal path based on the filter coefficient of the post-filtering filter.
A device for providing filtering for an analog-to-digital converter (ADC), the device comprising:
- a monitoring module configured to obtain a filter coefficient of a post-filtering filter that is located after the ADC on a signal path;
- and
- a filter coefficient generation module configured to generate a filter coefficient of a pre-filtering filter that is located before the ADC on the signal path based on the filter coefficient of the post-filtering filter.
A method for providing filtering for an analog-to-digital converter (ADC), the method comprising:
- obtaining a filter coefficient of a post-filtering filter that is located after the ADC on a signal path, wherein obtaining the filter coefficient of the post-filtering filter comprises adjusting the filter coefficient of the post-filtering filter iteratively according to a least mean square (LMS) algorithm;
- and
- generating a filter coefficient of a pre-filtering filter that is located before the ADC on the signal path based on the filter coefficient of the post-filtering filter, wherein generating the filter coefficient of the pre-filtering filter comprises linearly converting an amplitude of the filter coefficient of the post-filtering filter into an amplitude of the filter coefficient of the pre-filtering filter.
Dependencies are inferred from the claim text.