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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This pin forces a jump to message 1 for either recording or playback. Also a noise like sound is coming through out from the speaker, Why this happens ans how to rectify that thing?

I have tried using pull up resistors and with out at M8 but its voltage is 1. APR voice recorder problem http: What is the function of TR1 in this dafasheet 3. During playback a low level on this pin indicates that all recorded mes- sages have been played.

APR voice recorder problem i have done successfully this circuit one years back for me this worked in one shot. What can be the reason? Why this happens in my case?

During recording a low level on this pin indi- cates that the end of the memory array was reached.

The diaphragm movement is not good due to some dc components uf is there, still!!! PV charger battery circuit 4. Part and Inventory Search. Hierarchical block is unconnected 3. This pin should be left unconnected when the device is used in this mode. Help me with a voice recording equipment project! Con- nect system ground. I am not able to record the sound file.


APR9600 Datasheet

Dec 242: How reliable is it? 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?

Thanks in advance, Akhil.

Losses in inductor of a boost converter 9. How do you get an MCU design to market quickly? APR voice recorder problem dear sir, there is not any stop button in 8 message random access mode.

Similar Threads complex voice recorder 1. If I am using 8lines it acts as input line and then why that connection is done?

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

If this pin is pulled high Beep is enabled. This active low input This pin should be left unconnected. Will datashret 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.

And any idea why these kinds voltage levels coming in M8 and M9 pins as I mentioned that thing my previous post: Equating complex number interms of the other 6.

This pin forces a jump to message 3 for either recording or playback. Auto Rewind Option Message: Then set the initial conditions for CE and RE as low for record. Heat sinks, Part 2: Santhosh, Send me the circuit when you have time, by the time am also trying to solve the problem. APR voice recorder problem I have done that already, but not hearing any beep sound when there is a high to low transition on pin1.


I think that means my IC is working properly. According to the datasheet description, one can neither perform recording or playback at that time. A low edge on this pin plays or records the current mes- sage.

CMOS Technology file 1. APR voice recorder problem Hi guys, I have tried the circuit diagram given in the datasheet see datashdet first post in random access mode using 8 switches. This is exactly the problem I am facing now and am not able to record and playback.

Con- nect to system ground.

APR – price, delivery and datasheet for APR – Planet One Components – Stocking Distributor

Same as Mode 1. Home – IC Supply – Link. Originally Posted by Akhil Mohan. Thanks so much for the advice. PNP transistor not working 2.

Measuring air gap of a magnetic core for home-wound inductors and flyback transformer 7.