JPS6481666A - Digital type waveform signal generator - Google Patents
Digital type waveform signal generatorInfo
- Publication number
- JPS6481666A JPS6481666A JP62237932A JP23793287A JPS6481666A JP S6481666 A JPS6481666 A JP S6481666A JP 62237932 A JP62237932 A JP 62237932A JP 23793287 A JP23793287 A JP 23793287A JP S6481666 A JPS6481666 A JP S6481666A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- dividing ratio
- frequency dividing
- adder
- outputs
- 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.)
- Granted
Links
Landscapes
- Power Conversion In General (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE:To improve the resolution of an output frequency without increasing the frequency of a reference clock signal by improving the set resolution of a frequency dividing ratio. CONSTITUTION:A frequency dividing ratio is set at a numerical value operated down to the first decimal place in the sexadecimal notation by a frequency dividing ratio setter 3. Then, the integer part n1 of said numerical value is inputted to an adder 14 and the decimal part M/16 (M is a value in the first decimal place), to an interpolation table ROM 15. The ROM 15 outputs the decimal part M/16 to a shift register 16. Said shift register 16 outputs a given bit of data to the adder 14 at the time of renewing an output signal to a waveform signal corresponding to each time section. Subsequently, said adder 14 adds the integer part n1 of the set value of said frequency dividing ratio and 1 bit of data inputted from the shift register 16 and outputs the added value as the frequency dividing ratio for a frequency divider 2. When the frequency of a reference clock signal is fCLK, an output frequency f0 is given by the equation shown on the right side. In this manner, it is possible to improve the accuracy of said output frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62237932A JP2775733B2 (en) | 1987-09-22 | 1987-09-22 | Digital waveform signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62237932A JP2775733B2 (en) | 1987-09-22 | 1987-09-22 | Digital waveform signal generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6481666A true JPS6481666A (en) | 1989-03-27 |
| JP2775733B2 JP2775733B2 (en) | 1998-07-16 |
Family
ID=17022590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62237932A Expired - Lifetime JP2775733B2 (en) | 1987-09-22 | 1987-09-22 | Digital waveform signal generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2775733B2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075353A (en) * | 1973-11-05 | 1975-06-20 | ||
| JPS53112427A (en) * | 1977-03-14 | 1978-09-30 | Sanken Electric Co Ltd | Device for controlling frequfncy |
| JPS5917726A (en) * | 1982-07-21 | 1984-01-30 | Matsushita Electric Ind Co Ltd | Programmable frequency generator for inverter driving having inductive load |
| JPS61142996A (en) * | 1984-12-12 | 1986-06-30 | Canon Inc | Stepping motor controller |
| JPS623125U (en) * | 1985-06-20 | 1987-01-09 | ||
| JPS6282722A (en) * | 1985-10-07 | 1987-04-16 | Sony Corp | Frequency division circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016915A (en) * | 1983-07-08 | 1985-01-28 | Lion Corp | Bath agent composition |
-
1987
- 1987-09-22 JP JP62237932A patent/JP2775733B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075353A (en) * | 1973-11-05 | 1975-06-20 | ||
| JPS53112427A (en) * | 1977-03-14 | 1978-09-30 | Sanken Electric Co Ltd | Device for controlling frequfncy |
| JPS5917726A (en) * | 1982-07-21 | 1984-01-30 | Matsushita Electric Ind Co Ltd | Programmable frequency generator for inverter driving having inductive load |
| JPS61142996A (en) * | 1984-12-12 | 1986-06-30 | Canon Inc | Stepping motor controller |
| JPS623125U (en) * | 1985-06-20 | 1987-01-09 | ||
| JPS6282722A (en) * | 1985-10-07 | 1987-04-16 | Sony Corp | Frequency division circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2775733B2 (en) | 1998-07-16 |
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