KT Datasheet, KT PDF, KT Data sheet, KT manual, KT pdf, KT, datenblatt, Electronics KT, alldatasheet, free, datasheet. KT Datasheet PDF Download – LOW POWER DTMF RECEIVER, KT data sheet. *Pb Free Matte Tin. °C to +85°C. MTD/MTD ISO. 2. -CMOS Integrated DTMF Receiver. Data Sheet. Figure 1 – Functional Block Diagram. PWDN.

Author: Tausida Golticage
Country: Anguilla
Language: English (Spanish)
Genre: Politics
Published (Last): 3 May 2009
Pages: 56
PDF File Size: 8.71 Mb
ePub File Size: 3.47 Mb
ISBN: 173-1-40979-743-8
Downloads: 50234
Price: Free* [*Free Regsitration Required]
Uploader: Shaktiramar

Started by fastline Yesterday at 8: By continuing to use this site, you are consenting to our use of cookies. If the computer sees something that starts out looking like a DTMF tone but the frequencies change after ms, it might be able to depending upon the application retroactively determine that the tones weren’t really DTMF after all. Welcome to our site!

Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia K3t170 at If I’m reading your data sheet right, it ignores such impossible-to-decode signals, and during such times acts the same as when it datasheft nothing but silence.

As long as you aren’t faster than 40 ms between presses, you’ll get the second press. Potentiometer Questions Started by norbss Yesterday at That is if I press a button say 1 and immediately within the same second if I press key 2 Will it be able to recieve and decode the DTMF correctly with proper time synchronization?

Thread starter vinodquilon Start date Feb 13, The driver is probably already in your OS if you’re using recent Windows.


HTTP This page has been moved

Sign up using Facebook. For example, a computer could take advantage of the fact that DTMF is generally gated datasheef and off relatively cleanly. When you get the interrupt, read the Q1 it3170 Q4 data, do whatever pre-processing you may want and send it out the USB port. Incidentally, another approach would be to simply feed audio into the USB port using an off-the-shelf product, and then have the computer perform the DTMF recognition.

You might have to just try and see.

kt datasheet & applicatoin notes – Datasheet Archive

Post as a guest Name. You need to learn about the phone system in your country and it might be different in different parts of your country.

I don’t know anything about the delay your FM modulator and demodulator will add to the system, but I suspect the total latency will still be well under 0. If you press one key and then quickly press the next, you should be okay kh3170 get the second keypress as the maximum interdigit pause time is 40 ms.

For a better experience, please enable JavaScript in your browser before proceeding.

Forums New posts Search forums. Kt31170 must log in or register to reply here. I don’t know what your transmit latency will be. Home Questions Tags Users Unanswered. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.


KT3170 Datasheet PDF

There’s no way a DTMF chip could do that. Sign up using Email and Password. Many peoples obtained positive result by following the circuit in the above link using KT By datashewt “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. If reading the datashet data from that DTMF signal is all you want kt170 do, programming a microcontroller seems unnecessarily complicated.

Articles Top Articles Dataaheet resources. Just saying hello Started by MichaelaJoy Yesterday at 6: Email Required, but never shown. I can’t definitively tell by the data sheet if the KT output would change if datasgeet pressed a second key while the first one is still pressed, but I’d guess that the fist output would stay latched unless you fully released the first key prior to the second press.

Then connect the DSO pin 15 to a digital input with an interrupt-on-change and process when it goes high.