Decoder for a D/A converter

Communications: electrical – Audible indication – Percussion-type sound producer

Patent

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Details

H03M 176

Patent

active

045786682

ABSTRACT:
A decoder for a D/A converter comprises at least two resistor circuits, two transistor circuits, three constant current sources and a plurality of switches where the plurality of switches respond to a digital input to connect certain of the constant current sources to certain of the resistors.

REFERENCES:
patent: 4250492 (1981-02-01), Yamakido et al.
patent: 4539553 (1985-09-01), Takeda et al.
"10-Bit D/A Converter for Video," Technical Research Meeting Date of the Institute of Electronics and Communications of Engineers of Japan, Semiconductor and Transistor Subcommittee; SSD 82-1.

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