Invention Grant
US09054733B2 Quantization noise coupling delta sigma ADC with a delay in the main DAC feedback
有权
量化噪声耦合ΔΣADC在主DAC反馈中具有延迟
- Patent Title: Quantization noise coupling delta sigma ADC with a delay in the main DAC feedback
- Patent Title (中): 量化噪声耦合ΔΣADC在主DAC反馈中具有延迟
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Application No.: US14301948Application Date: 2014-06-11
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Publication No.: US09054733B2Publication Date: 2015-06-09
- Inventor: Vincent Quiquempoix , Fabien Vaucher
- Applicant: Microchip Technology Incorporated
- Applicant Address: US AZ Chandler
- Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee: MICROCHIP TECHNOLOGY INCORPORATED
- Current Assignee Address: US AZ Chandler
- Agency: King & Spalding L.L.P.
- Main IPC: H03M3/00
- IPC: H03M3/00
Abstract:
A delta-sigma modulator has a first summing point subtracting a first feedback signal from an input signal and forwarding a result to a transfer function, a second summing point adding an output signal from said transfer function to the input signal and subtracting a second feedback signal, a first integrator receiving an output signal from the second summing point, a quantizer receiving an output signal from the integrator and generating an output bitstream, and a digital-to-analog converter receiving the bitstream, wherein the first and second feedback signal are the output signal from said digital-to-analog converter delayed by a one sample delay.
Public/Granted literature
- US20140368365A1 Quantization Noise Coupling Delta Sigma ADC with a Delay in the Main DAC Feedback Public/Granted day:2014-12-18
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