D/A converter

Details D/A converter D/A converter

1997-03-11

1998-03-03

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

H03M 2108

Patent

active

057240396

ABSTRACT:
A D/A converter for converting digital data including an appropriate number of bits to an analog value according to the contents of the digital data every a data conversion period. The D/A converter comprises a pulse generating circuit for generating a negative pulse signal and a positive pulse signal at the time of executing the continuous data conversion including an odd order of the data conversion period and an even data conversion period. The negative pulse signal rises after a period specified by the digital data in the odd data conversion period, and it falls in the even data conversion period, wherein a period, which is specified by the digital data, remains in the even data conversion period. The positive pulse signal rises in the odd order of the data conversion period such that a period, specified by the digital data, is remaining in the odd data conversion period, and the positive pulse signal falls after a period specified by the digital data in the even data conversion period. A pulse synthesizer provides a synthesized pulse signal in response to the difference between the negative pulse signal and the positive pulse signal.

REFERENCES:
patent: 4397562 (1983-08-01), Shirasu

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