JPH0459613U - - Google Patents
Info
- Publication number
- JPH0459613U JPH0459613U JP10191890U JP10191890U JPH0459613U JP H0459613 U JPH0459613 U JP H0459613U JP 10191890 U JP10191890 U JP 10191890U JP 10191890 U JP10191890 U JP 10191890U JP H0459613 U JPH0459613 U JP H0459613U
- Authority
- JP
- Japan
- Prior art keywords
- noise generator
- output
- converter
- signal source
- signal
- 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
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案の一実施例のブロツク図、第２
図はΣΔ変調器の伝達関数算出の説明図、第３図
は本考案の他の実施例のブロツク図、第４図は本
考案の更に他の実施例のブロツク図、第５図はＭ
系列発生器とその信号を示す図である。
１１……信号源、１３，１７，２３，２７……
減算器、１５，２５……ＡＤ変換器、１６，２６
……ＤＡ変換器、１８，２８……ノイズ発生器。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is an explanatory diagram of calculation of the transfer function of the ΣΔ modulator, FIG. 3 is a block diagram of another embodiment of the present invention, FIG. 4 is a block diagram of still another embodiment of the present invention, and FIG.
FIG. 2 is a diagram showing a sequence generator and its signals. 11... Signal source, 13, 17, 23, 27...
Subtractor, 15, 25...AD converter, 16, 26
...DA converter, 18,28...noise generator.
Claims (1)
信号源１１の信号が入力される第１の減算器１３
と、積分器１４と、ＡＤ変換器１５と、該ＡＤ変
換器１５の出力をフイードバツクして前記第１の
減算器１３に入力するＤＡ変換器１６とで構成さ
れるΣΔ変調器１２と、 前記積分器１４の出力から前記ＤＡ変換器１６
の出力を減算する第２の減算器１７とを具備する
ことを特徴とするノイズ発生器。 (2) 信号源１１と第１のΣΔ変調器１２と第２
の減衰器１７とで構成された第１のノイズ発生器
１８の第２の減衰器１７の出力部に前記第１のノ
イズ発生器１８と同一構成の第２のノイズ発生器
２８を接続して２段構成にしたことを特徴とする
ノイズ発生器。 (3) 第１のノイズ発生器１８の信号源を第２の
ノイズ発生器２８の出力ノイズとすることを特徴
とする請求項２記載のノイズ発生器。[Claims for Utility Model Registration] (1) A signal source 11 that generates some kind of signal, and a first subtractor 13 to which the signal of the signal source 11 is input.
, an integrator 14, an AD converter 15, and a DA converter 16 that feeds back the output of the AD converter 15 and inputs it to the first subtracter 13; From the output of the integrator 14 to the DA converter 16
a second subtracter 17 for subtracting the output of the noise generator. (2) Signal source 11, first ΣΔ modulator 12, and second
A second noise generator 28 having the same configuration as the first noise generator 18 is connected to the output part of the second attenuator 17 of the first noise generator 18 configured with the attenuator 17. A noise generator characterized by having a two-stage configuration. (3) The noise generator according to claim 2, wherein the signal source of the first noise generator 18 is the output noise of the second noise generator 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10191890U JPH0459613U (en) | 1990-09-28 | 1990-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10191890U JPH0459613U (en) | 1990-09-28 | 1990-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0459613U true JPH0459613U (en) | 1992-05-21 |
Family
ID=31845746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10191890U Pending JPH0459613U (en) | 1990-09-28 | 1990-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0459613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099114A1 (en) * | 2011-12-28 | 2013-07-04 | パナソニック株式会社 | Successive approximation type a-d converter and noise generator |
-
1990
- 1990-09-28 JP JP10191890U patent/JPH0459613U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013099114A1 (en) * | 2011-12-28 | 2013-07-04 | パナソニック株式会社 | Successive approximation type a-d converter and noise generator |
| US9077358B2 (en) | 2011-12-28 | 2015-07-07 | Panasonic Intellectual Property Management Co., Ltd. | Successive approximation AD converter and noise generator |
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