Invention Grant
US08749414B2 Apparatus and method for calibrating time constant, and low pass delta sigma modulation apparatus including the same
失效
用于校准时间常数的装置和方法，以及包括该常数的低通量ΔΣ调制装置
- Patent Title: Apparatus and method for calibrating time constant, and low pass delta sigma modulation apparatus including the same
- Patent Title (中): 用于校准时间常数的装置和方法，以及包括该常数的低通量ΔΣ调制装置
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Application No.: US13715056Application Date: 2012-12-14
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Publication No.: US08749414B2Publication Date: 2014-06-10
- Inventor: Young Kyun Cho , Bong Hyuk Park , Jae Ho Jung
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Rabin & Berdo, P.C.
- Priority: KR10-2012-0069446 20120627
- Main IPC: H03M1/10
- IPC: H03M1/10 ; H03M3/00
Abstract:
A time constant calibration apparatus of a low pass delta sigma modulation apparatus calibrates a time constant of an integrator using a resistor and a capacitor, and the time constant calibration apparatus generates a reference voltage by flowing a reference current to a reference resistor, converts the reference voltage to a digital signal, and varies a value of a resistor of an integrator and a value of a capacitor from the digital signal.
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