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DTMF Receiver IC : LC7385 |
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No. |
39 |
Kit / Parts |
Parts Set. |
Class. |
Communication |
Part Name |
DTMF Receiver LC7385 |
Shop |
IC manufacturer : SANYO Co.,Ltd. Parts Shop : Akizuki Denshi Tsusho Ltd. E-mail : akizuki@ains.tomakomai.or.jp This Parts Set is got in Japan. At another country, it is very difficult to get this. |
Price |
500 yen ( 500 yen is about $4.5, One dollar at the time of 110 yen.) |
Main parts |
LC7385 |
The power supply |
5VDC 7mA |
Outline specification |
For Telephone Dial Tone. Input Tone Code : 0,1,2,3,4,5,6,7,8,9,*,#,A,B,C,D Output : 4bits parallel OutPut This part set includes the following parts. (a) 3.58MHz X'tal 1pcs. |
Print Circuit Board |
- |
Case |
- |
Size |
18pin DIP |
Additional part(s) |
You must design an interface circuit by yourself. An additional part is based on this circuit. |
Comment |
Be careful of the voltage value of VIH,VIL.
You can read the English Datasheet of this IC by the following procedure. You need Adobe Acrobat Reader installed on your system to read a datasheet.
Fig.1 Top Page
Fig.2
Fig.3
Fig.4
Fig.5
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Modify |
- |
Example |
Fig.1 Example The image of the original designed circuit example that added the interface circuit for the printer port of PC-9801 series. Also , Akizuki Denshi Tsusho Ltd. sells "PIC DTMF Decoder Kit" that is used this IC(LC7385). Specification of this kit is following.
Fig.2 PIC DTMF Decoder Kit "PIC" means 1chip IC (PIC16C84) made of Microchip Technology Inc. |
Special attention
© 1997-2017 Atsushi Itou , JH4CBA , CBA
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