계수 평균화 기법을 적용한 계수 곱셈기 및 이를 이용한 디지털 델타-시그마 변조기
조민형, 권종기, 김이경
- 8164491 (2012.04.24)
- Provided are a coefficient multiplier and digital delta-sigma modulator using the same. The coefficient multiplier has the average of output signals of respective dependent multipliers as an effective coefficient using a coefficient averaging technique without employing an adder that has a complex structure and occupies a large chip area. Accordingly, the coefficient multiplier has a simple hardware constitution and small chip area in comparison with a canonical signed digit (CSD) coefficient multiplier, and the digital delta-sigma modulator employing the coefficient multiplier has a simple structure and small size.
- KSP 제안 키워드
- Averaging technique, Canonical Signed Digit(CSD), Chip area, Complex structure, Delta-Sigma Modulator, Large chip, Signed Digit, delta-sigma, effective coefficients, simple structure, small size