JPS6367874U - - Google Patents
Info
- Publication number
- JPS6367874U JPS6367874U JP16108186U JP16108186U JPS6367874U JP S6367874 U JPS6367874 U JP S6367874U JP 16108186 U JP16108186 U JP 16108186U JP 16108186 U JP16108186 U JP 16108186U JP S6367874 U JPS6367874 U JP S6367874U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- switched capacitor
- frequency
- circuit
- capacitor filters
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Description
第1図は本考案の実施例を示すブロツク図、第
2図は従来の信号検出回路のブロツク図である。
1,3……スイツチトキヤパシタフイルタで構
成された帯域通過フイルタ、2,8……コンパレ
ータ、4,10……検出回路、5……クロツク制
御回路、6……クロツク信号線、7,9……アク
テイブ・フイルタで構成された帯域通過フイルタ
。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional signal detection circuit. DESCRIPTION OF SYMBOLS 1, 3... Bandpass filter composed of a switch capacitor filter, 2, 8... Comparator, 4, 10... Detection circuit, 5... Clock control circuit, 6... Clock signal line, 7, 9... ...A bandpass filter consisting of an active filter.
Claims (1)
において、2群のスイツチトキヤパシタフイルタ
(SCF)で構成された帯域通過フイルタと、そ
のスイツチトキヤパシタフイルタのクロツク周波
数を制御するクロツク制御回路とを有し、検出信
号の周波数を選択できることを特徴とする信号検
出回路。 A circuit that detects the presence or absence of a signal within a certain frequency band includes a bandpass filter composed of two groups of switched capacitor filters (SCFs) and a clock control circuit that controls the clock frequency of the switched capacitor filters. A signal detection circuit characterized in that the frequency of the detection signal can be selected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16108186U JPS6367874U (en) | 1986-10-20 | 1986-10-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16108186U JPS6367874U (en) | 1986-10-20 | 1986-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6367874U true JPS6367874U (en) | 1988-05-07 |
Family
ID=31087058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16108186U Pending JPS6367874U (en) | 1986-10-20 | 1986-10-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6367874U (en) |
-
1986
- 1986-10-20 JP JP16108186U patent/JPS6367874U/ja active Pending