Invention Grant
- Patent Title: Systems and methods of element scrambling for compensation and calibration of analog-to-digital converter feedback
- Patent Title (中): 元件加扰的系统和方法用于模数转换器反馈的补偿和校准
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Application No.: US14617376Application Date: 2015-02-09
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Publication No.: US09407279B2Publication Date: 2016-08-02
- Inventor: John L. Melanson , Jaimin Mehta , Stephen T. Hodapp
- Applicant: Cirrus Logic, Inc.
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- Main IPC: H03M1/10
- IPC: H03M1/10 ; H03M1/06 ; H03M1/08 ; H03M1/66 ; H03M3/00

Abstract:
An apparatus may include a scrambler element configured to receive an input signal and generate a scrambled thermometer code-like signal having a plurality of bits based on the input signal and having a plurality of possible quantization values. The scrambler element may generate at least one equivalent code of the scrambled thermometer code-like signal for each possible quantization value. For each of one or more of the possible quantization values, the scrambler element may be configured to generate a plurality of possible equivalent codes of the scrambled thermometer code-like signal. Responsive to the input signal indicating a change in quantization value of the scrambled thermometer code-like signal, the scrambler element may change the scrambled thermometer code-like signal by transitioning the smallest possible number of the plurality of bits of the scrambled thermometer code-like signal to change quantization value of the scrambled thermometer code-like signal in accordance with the input signal.
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