Invention Grant
US09356618B2 Second order loop filter and multi-order delta sigma modulator including the same
有权
二阶环路滤波器和包括其的多阶三角Σ调制器
- Patent Title: Second order loop filter and multi-order delta sigma modulator including the same
- Patent Title (中): 二阶环路滤波器和包括其的多阶三角Σ调制器
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Application No.: US14617705Application Date: 2015-02-09
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Publication No.: US09356618B2Publication Date: 2016-05-31
- Inventor: Young Kyun Cho , Jae Ho Jung , Kwangchun Lee
- 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: NSIP Law
- Priority: KR10-2014-0015799 20140212
- Main IPC: H03M3/00
- IPC: H03M3/00 ; H03H11/12 ; H03H11/32
Abstract:
Provided is a second order loop filter (LF). The second order LF includes: an operational amplifier including a first input, a second input receiving a differential input of the first input, and an output; an inverter inverting a signal output from the output of the operational amplifier to output an inverted signal; a first resistor connected to between the first input and a first node; a second resistor connected to between the output of the operational amplifier and the first node; a third resistor connected to between the first input and an input signal; a first capacitor connected to between the second input and the first node; a second capacitor connected to between the output of the operational amplifier and an output of the inverter; and a third capacitor connected to between the output and the first input of the operational amplifier, wherein the second input is connected to a ground voltage.
Public/Granted literature
- US20150229292A1 SECOND ORDER LOOP FILTER AND MULTI-ORDER DELTA SIGMA MODULATOR INCLUDING THE SAME Public/Granted day:2015-08-13
Information query
