JPS5563124A - D-a converter circuit - Google Patents
D-a converter circuitInfo
- Publication number
- JPS5563124A JPS5563124A JP13555678A JP13555678A JPS5563124A JP S5563124 A JPS5563124 A JP S5563124A JP 13555678 A JP13555678 A JP 13555678A JP 13555678 A JP13555678 A JP 13555678A JP S5563124 A JPS5563124 A JP S5563124A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- change
- circuit
- supplied
- contact
- 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
Landscapes
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE: To ensure a high-accuracy and high S/N conversion in a simple circuit constitution even for the input digital signal featuring a larger number of the bit than the conversion element by providing the D-A conversion element, the dicision circuit and the change-over switch means each.
CONSTITUTION: The signals from No. m-n bit to No. m bit LSB from MSB among digital signals PIN of the m-bit natural binary code given from input terminal 1 are supplied to constantly-closed contact (a) of change-over switches SW1∼SWn within change-over switch circuit 4. While the No. n bit signal from MSB of PIN is supplied to contact (b) of SW1∼SWn. At the same time, the signals of m-n bits in all from MSB of PIN up to the bit of No. m-n-1 are supplied to OR circuit 5, where the presence or absence is detected for the information of higher-rank m-n bit. In case the information exists, SW1∼SWn are switched and connected to the side of contact (b) with the output supplied to D-A conversion element 2 n-bit. At the same time, the change-over switch within change-over circuit 6 at the output side of element 2 is switched and connected from contact (c) to the side of (d).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13555678A JPS5563124A (en) | 1978-11-02 | 1978-11-02 | D-a converter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13555678A JPS5563124A (en) | 1978-11-02 | 1978-11-02 | D-a converter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5563124A true JPS5563124A (en) | 1980-05-13 |
Family
ID=15154556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13555678A Pending JPS5563124A (en) | 1978-11-02 | 1978-11-02 | D-a converter circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5563124A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102118A (en) * | 1980-01-21 | 1981-08-15 | Hitachi Ltd | Digital to analog converting circuit |
| JPS58148509A (en) * | 1982-02-27 | 1983-09-03 | Aiwa Co Ltd | Operation controlling system of amplifier |
| JPS58164315A (en) * | 1982-03-25 | 1983-09-29 | Nippon Gakki Seizo Kk | Digital-analog converter |
| JPS5999541U (en) * | 1982-12-23 | 1984-07-05 | 富士電機株式会社 | A/D conversion device |
| JPS61154320A (en) * | 1984-12-27 | 1986-07-14 | Pioneer Electronic Corp | Variable device of digital level |
| JPS6348919A (en) * | 1986-08-19 | 1988-03-01 | Fujitsu Ltd | Automatic gain control system by digital signal processor |
| JPS63209209A (en) * | 1987-02-25 | 1988-08-30 | Yamaha Corp | Digital signal processing circuit |
| JP2004343746A (en) * | 2003-05-12 | 2004-12-02 | Texas Instruments Inc | Dual-stage digital-to-analog converter |
-
1978
- 1978-11-02 JP JP13555678A patent/JPS5563124A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102118A (en) * | 1980-01-21 | 1981-08-15 | Hitachi Ltd | Digital to analog converting circuit |
| JPS58148509A (en) * | 1982-02-27 | 1983-09-03 | Aiwa Co Ltd | Operation controlling system of amplifier |
| JPS58164315A (en) * | 1982-03-25 | 1983-09-29 | Nippon Gakki Seizo Kk | Digital-analog converter |
| JPS5999541U (en) * | 1982-12-23 | 1984-07-05 | 富士電機株式会社 | A/D conversion device |
| JPS61154320A (en) * | 1984-12-27 | 1986-07-14 | Pioneer Electronic Corp | Variable device of digital level |
| JPS6348919A (en) * | 1986-08-19 | 1988-03-01 | Fujitsu Ltd | Automatic gain control system by digital signal processor |
| JPS63209209A (en) * | 1987-02-25 | 1988-08-30 | Yamaha Corp | Digital signal processing circuit |
| JP2004343746A (en) * | 2003-05-12 | 2004-12-02 | Texas Instruments Inc | Dual-stage digital-to-analog converter |
| JP4512414B2 (en) * | 2003-05-12 | 2010-07-28 | テキサス インスツルメンツ インコーポレイテッド | Double stage digital to analog converter |
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