JPH0361712U - - Google Patents
Info
- Publication number
- JPH0361712U JPH0361712U JP12260389U JP12260389U JPH0361712U JP H0361712 U JPH0361712 U JP H0361712U JP 12260389 U JP12260389 U JP 12260389U JP 12260389 U JP12260389 U JP 12260389U JP H0361712 U JPH0361712 U JP H0361712U
- Authority
- JP
- Japan
- Prior art keywords
- output
- reference voltage
- generation section
- converter
- input
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Analogue/Digital Conversion (AREA)
Description
第１図は本考案に係る信号発生装置の一実施例
を示す構成図、第２図はＤＡ変換部の出力振幅の
低下の特性の一例を示す特性曲線図、第３図は従
来の信号発生装置の構成図、第４図はそのフイル
タ部の周波数特性の一例を示す特性曲線図である
。
１……アドレス発生部、２，１２……ＲＯＭ、
３，１３……ＤＡ変換部、４……フイルタ部、１
０……ＣＰＵ、１１……基準電圧発生部。
FIG. 1 is a block diagram showing an embodiment of the signal generator according to the present invention, FIG. 2 is a characteristic curve diagram showing an example of the characteristic of the output amplitude reduction of the DA converter, and FIG. 3 is a conventional signal generator. FIG. 4, which is a block diagram of the apparatus, is a characteristic curve diagram showing an example of the frequency characteristics of the filter section. 1... Address generation section, 2, 12... ROM,
3, 13...DA conversion section, 4...Filter section, 1
0...CPU, 11...Reference voltage generation section.
Claims (1)
ドレスを発生するアドレス発生部と、 このアドレス発生部の出力アドレスが入力され
、デジタルの波形データが格納されている記憶部
と、 この記憶部の出力が入力され、前記デジタルの
波形データをアナログ信号に変換するＤＡ変換部
と、 このＤＡ変換部の出力が入力され、ノイズを除
去するフイルタ部と、 前記周波数情報により、前記ＤＡ変換部の基準
電圧を発生させる基準電圧発生部とを有し、 この基準電圧発生部は発生させる信号の周波数
によつて前記基準電圧を変化させることにより、
広い周波数範囲において一定振幅の波形を発生さ
せるようにしたことを特徴とする信号発生装置。[Claims for Utility Model Registration] An address generation section that receives frequency information of a signal to be output and sequentially generates addresses, and a storage section that receives the output address of this address generation section and stores digital waveform data. a DA converter to which the output of the storage unit is input and converts the digital waveform data into an analog signal; a filter unit to which the output of the DA converter is input and removes noise; and a filter unit to which the output of the DA converter is input and removes noise; and a reference voltage generation section that generates a reference voltage for the DA conversion section, and the reference voltage generation section changes the reference voltage according to the frequency of the signal to be generated.
A signal generator characterized in that it generates a waveform of constant amplitude over a wide frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12260389U JPH0361712U (en) | 1989-10-19 | 1989-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12260389U JPH0361712U (en) | 1989-10-19 | 1989-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361712U true JPH0361712U (en) | 1991-06-17 |
Family
ID=31670600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12260389U Pending JPH0361712U (en) | 1989-10-19 | 1989-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361712U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0193211A (en) * | 1987-10-03 | 1989-04-12 | Sony Corp | Signal conversion device |
| JPH01117426A (en) * | 1987-10-30 | 1989-05-10 | Ryoichi Mori | Digital analog conversion system |
-
1989
- 1989-10-19 JP JP12260389U patent/JPH0361712U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0193211A (en) * | 1987-10-03 | 1989-04-12 | Sony Corp | Signal conversion device |
| JPH01117426A (en) * | 1987-10-30 | 1989-05-10 | Ryoichi Mori | Digital analog conversion system |
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