Digital-to-analog converting circuit

Details Digital-to-analog converting circuit Digital-to-analog converting circuit

1987-09-16

1989-04-04

Miska, Vit W.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

H03K 1302

Patent

active

048189960

ABSTRACT:
A digital-to-analog converting circuit increases an absolute value of inputted digital data by a bit shift operation when minute digital data are inputted thereto. The shifted digital data are converted into an analog signal, and thereafter, such analog signal is attenuated in accordance with a shift value of the bit shift operation. The bit shift operation and the attenuation operation are performed when the value of the inputted digital data are smaller than a predetermined value for a predetermined time or more. Thus, a conversion accuracy of the minute digital data is raised, and a distortion generation depending on a frequently switching of the bit shift is avoided.

REFERENCES:
patent: 4450433 (1984-05-01), Moriyama

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