audio firing key amplifition circuit formed by program-controlled op-amp F346

Published:2011/6/30 23:47:00 Author:chopper | Keyword: audio, firing key, amplifition, program-controlled, op-amp | From:SeekIC

This is a audio firing key amplifition circuit formed by four program-controlled integrated operational amplifier F346.The constant-current source circuit of program-controlled operational amplifier can be controlled by external part,and when constant flow source is loaded to the current bias,the op-amp will be in functional mode,or it will be on cutoff state.Additionally, when the value of current bias is changed,the parameter of the op-amp will be changed,too.



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