JPH0420776U - - Google Patents
Info
- Publication number
- JPH0420776U JPH0420776U JP6161090U JP6161090U JPH0420776U JP H0420776 U JPH0420776 U JP H0420776U JP 6161090 U JP6161090 U JP 6161090U JP 6161090 U JP6161090 U JP 6161090U JP H0420776 U JPH0420776 U JP H0420776U
- Authority
- JP
- Japan
- Prior art keywords
- modulator
- audio signal
- oscillation circuit
- secam
- pal
- 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
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000005236 sound signal Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は従来の一例のブロツク図である。
６……ＦＭ変調発振回路、１０……音声信号入
力端子、１１……エンフアシス回路、１２……出
力端子、１３，１８……同調回路、２０……ＰＡ
Ｌ／ＳＥＣＡＭ両用ＩＣ、２１……ＡＭ変調器、
２２……発振回路、２５……スイツチ回路、２６
……発振動作切換制御信号入力端子、ＳＷ１……
スイツチ。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a block diagram of a conventional example. 6...FM modulation oscillation circuit, 10...Audio signal input terminal, 11...Emphasis circuit, 12...Output terminal, 13, 18...Tuning circuit, 20...PA
L/SECAM dual-use IC, 21...AM modulator,
22...Oscillation circuit, 25...Switch circuit, 26
...Oscillation operation switching control signal input terminal, SW 1 ...
Switch.
Claims (1)
ＣＡＭ用の音声信号ＡＭ変調器と、該ＡＭ変調器
に搬送波を供給するＳＥＣＡＭ用発振回路とを設
けてなるＰＡＬ／ＳＥＣＡＭ切換えモジユレータ
用ＩＣ。 Audio signal FM modulation oscillation circuit for PAL and SE
An IC for a PAL/SECAM switching modulator, which is provided with an audio signal AM modulator for CAM and an oscillation circuit for SECAM that supplies a carrier wave to the AM modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990061610U JP2552306Y2 (en) | 1990-06-11 | 1990-06-11 | PAL / SECAM switching modulator IC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990061610U JP2552306Y2 (en) | 1990-06-11 | 1990-06-11 | PAL / SECAM switching modulator IC |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0420776U true JPH0420776U (en) | 1992-02-21 |
| JP2552306Y2 JP2552306Y2 (en) | 1997-10-29 |
Family
ID=31590011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990061610U Expired - Lifetime JP2552306Y2 (en) | 1990-06-11 | 1990-06-11 | PAL / SECAM switching modulator IC |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2552306Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5588474A (en) * | 1978-12-26 | 1980-07-04 | Hitachi Ltd | Rf modulator for both pal and secam |
-
1990
- 1990-06-11 JP JP1990061610U patent/JP2552306Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5588474A (en) * | 1978-12-26 | 1980-07-04 | Hitachi Ltd | Rf modulator for both pal and secam |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2552306Y2 (en) | 1997-10-29 |
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