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Registered SECOND ORDER LOOP FILTER AND MULTI-ORDER DELTA SIGMA MODULATOR INCLUDING THE SAME
- Inventors
- Cho Young Kyun, Kwangchun Lee, Jung Jaeho
- Application No.
- 14617705 (2015.02.09)
- Publication No.
- 20150229292 (2015.08.13)
- Registration No.
- 9356618 (2016.05.31)
- Country
- UNITED STATES
- Project Code
- 13VI1600, Research on the Class-S base-station power amplifier technology for future moblie communications, Jung Jaeho
- 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.
- KSP Keywords
- Delta-Sigma Modulator, Differential input, Input signal, Operational Amplifiers(Op-Amps), an inverter, delta-sigma, loop-filter(LF), second-order
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | SECOND ORDER LOOP FILTER AND MULTI-ORDER DELTA SIGMA MODULATOR INCLUDING THE SAME | KOREA | KIPRIS |