JPS55120224A - D/a converter - Google Patents
D/a converterInfo
- Publication number
- JPS55120224A JPS55120224A JP2740079A JP2740079A JPS55120224A JP S55120224 A JPS55120224 A JP S55120224A JP 2740079 A JP2740079 A JP 2740079A JP 2740079 A JP2740079 A JP 2740079A JP S55120224 A JPS55120224 A JP S55120224A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- digital value
- regions
- bits
- constitution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/82—Digital/analogue converters with intermediate conversion to time interval
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To make it possible to simplify the constitution and also to give effect to D/A conversion of even a digital value of a large number of bits in a short time by dividing the digital value into several and by making the final output value of an integrating circuit correspond to the digital value. CONSTITUTION:Digital value Di of 16 bits is divided into three regions K1, K2 and K3. The converter consists of constant current circuit 1, integrating circuit 2, output holding circuit 3, logic circuit 4, etc., and in circuit 4, control circuit TC composed of a microcomputer, etc., divides Di stored in register RE into regions K1-K3, counts sequentially data n1-n3 of respective regions by clocks to output time-width signals N1-N3, thereby controlling swtiches S1-S3 of circuit 1 while controlling switches S4 and S5 by generating reset signal RS and sampling signal SS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2740079A JPS55120224A (en) | 1979-03-09 | 1979-03-09 | D/a converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2740079A JPS55120224A (en) | 1979-03-09 | 1979-03-09 | D/a converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55120224A true JPS55120224A (en) | 1980-09-16 |
Family
ID=12220006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2740079A Pending JPS55120224A (en) | 1979-03-09 | 1979-03-09 | D/a converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55120224A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5799821A (en) * | 1980-12-15 | 1982-06-21 | Sony Corp | Digital-to-analogue converter |
-
1979
- 1979-03-09 JP JP2740079A patent/JPS55120224A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5799821A (en) * | 1980-12-15 | 1982-06-21 | Sony Corp | Digital-to-analogue converter |
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