1)need mic sensitivity regulation
2) need volume regulation
3) has to work (the best way ) 1,5V if not possbile 3 V is ok
So have any ideas
I searched ST : they have special integrated amplifiers desgined for CELL phones and for headphones: I CAN NOT obtain them here so I ll have to do it with parts I can get
I can get TDA7231 and slimilar
ARE THERE any SINLGE element switching devices : 1,5V imput 3V output; I heared that sth like that exist right?
There are two imput designs: 1) amplifier amplifies ALL SOUND equaly acording to sound power
2) MORE SILENT sound are amplified higher than those loud ones
So can I use TDA7231 for output stage ande SIMPLE transistor amplifer for powering and amplifing ELECTRET MIC in those two ways changeable by switch for two way of operation in the same device
So can you suggest what integrated amplifier to use and if you have any ideas to post them
thanks
2) need volume regulation
3) has to work (the best way ) 1,5V if not possbile 3 V is ok
So have any ideas
I searched ST : they have special integrated amplifiers desgined for CELL phones and for headphones: I CAN NOT obtain them here so I ll have to do it with parts I can get
I can get TDA7231 and slimilar
ARE THERE any SINLGE element switching devices : 1,5V imput 3V output; I heared that sth like that exist right?
There are two imput designs: 1) amplifier amplifies ALL SOUND equaly acording to sound power
2) MORE SILENT sound are amplified higher than those loud ones
So can I use TDA7231 for output stage ande SIMPLE transistor amplifer for powering and amplifing ELECTRET MIC in those two ways changeable by switch for two way of operation in the same device
So can you suggest what integrated amplifier to use and if you have any ideas to post them
thanks
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.