APR datasheet, APR circuit, APR data sheet: APLUS – SINGLE- CHIP VOICE RECORDING & PLAYBACK DEVICE FOR SINGLE 60 SECOND. APR Datasheet PDF Download – SINGLE-CHIP VOICE RECORDING & PLAYBACK DEVICE FOR SINGLE 60 SECOND MESSAGE, APR data sheet . APLUS is selling voice recording chip,the main manufacture products are recording ic and voice chip,is a simple operation voice recording ic products and .

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APR voice recorder problem But I have a speaker with internal resistance 8ohm and in the datasheet it is specified as 16ohm, is it k here? PNP transistor not working 2. This pin forces a jump to message 1 for either recording or playback. APR voice recorder problem i have done successfully this circuit one years back for me this worked in one shot.

Hierarchical block is unconnected 3.

Single-Chip Voice Recording & Playback Device 60-Second Duration

This is exactly the problem I am facing now and am not able to record and playback. Choosing IC with EN signal 2. APR voice recorder problem this works for me everytime i rig this up And any idea why these kinds voltage levels coming in M8 and M9 pins as I mentioned that thing my previous post: Suggest me a voice recorder chip 5. But when I am giving a high to low transition on pin1, am not hearing the beep sound as BE is kept high.


Losses in inductor of a boost converter 9. This active low input This pin should be left unconnected pin forces a skip to the next message when the device is used in this for either playback or recording mode. The time now is Dec 248: I am not able to record the sound file.


Home – IC Supply – Link. Equating complex number interms of the other 6. Heat sinks, Part 2: During recording a low level on this pin indi- cates that the end of the memory array was reached. CMOS Technology file 1.

This pin forces a jump to message 2 for either recording or playback. When I am connecting datawheet IC to supply the busy LED turns ON and from the datasheet what that signifies is the device is currently busy performing internal functions and can neither record nor playback at the current time. Also datwsheet noise like sound is coming through out from the speaker, Why this happens ans how to rectify that thing?

Last Jump to page: Consult table 1 for decoding information. The ANA input part is the same that I have connected. This pin should be left unconnected when the device is used in this mode. Similar Threads complex voice recorder 1. Is am making my point in a confusing manner, any datsaheet I am sorry If I am doing that: Will the Strobe LED glows like ON and OFF or only at the time of recording or Playback, I am giving the input file from PC using stereo jack and according to the block diagram it is undergoing sample and hold and a preamp stage and then to speaker out.


I am using the random access mode to record 8 messages for a total of 60sec. Part and Inventory Search. Refer to table X for a list of resistors and their resultant sampling rates.

This pin forces eatasheet jump to message 3 for either recording or playback. I will try the pull up resistor part that you have specified ,but why it is needed and why M8is connected to Supply by k.

So if am not giving any input signal the speaker out should be zero and during the ON it should varying nature,please correct me if I am wrong.

During playback a low level on this pin indicates that all recorded mes- sages have ratasheet played. Thanks so much for the advice. Con- nect system ground. APR voice recorder problem dear sir, there is not any stop button in 8 message random access mode. According to the datasheet description, one can neither perform recording or playback at that time.