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isd voice chip

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Gaston

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is anyone familur with the isd voicechips?? I am using the isd1110. i recorded the chip on a board that i bought and the chip sounds real good. but when i put it on the playback board i made it doesn't act right. i made the board to continuosly loop the sound. i am holding pin 23(which should play when held low) low. and it play throut the speaker output but not the analog out. and it stops when it hits the end of message marker. i have pins 3,9, and 10 held high which acording to the data sheet should put it into a special looping mode. am i overlooking something?
 

Gaston

Member
ok, what i am gathering from the aplication notes is that the analoge out is the output from the microphone preamp and is meant to be fed back into the analoge in for recording. why would they want to do this? an effects loop? : ) . so you must have to take the output from pins 14 and 15. i get good out from these pins. but i still have a looping problem. in the note it says that mabey i recorded past the end of the memory. let me go out to my lab and record a shorter recording and see what happens. i will post my results
 

Gaston

Member
Thanks Gayan, i had pin three high instead of four. i guess because it is called A3 i got it confused. that did the trick. it works now. an extra set of eyes helps out sometimes
 
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