Hi all, my first post on the forums and a question.
I am putting together my own car sound system and I am looking at designing a preamp for driving amplifiers and the like from the outputs of the rest of the circuit. I have found the following chips from TI:
http://focus.ti.com/docs/prod/folders/print/tlc085.html
I am particularly interested in these as they are single supply so easy to integrate in my current system, and high output (many car amps these days are capable of accepting up to 8 volts of input!) They also have a shutdown function which is important as it can integrate with the rest of my system's muting functions (avoiding pop and noise during power-up, shutdown and signal changeovers.)
A few application questions. How hard are these to build a circuit around? I am not extremely experienced with op-amps but would presume they are roughly similar to a traditional op-amp but with biasing circuitry built in to avoid external biasing when used with a single rail supply. Also, each op-amp has a + and - input but only a single output. I can only presume the - input is a reference or ground point when used in audio but not absolutely sure.
Finally, anyone who could point me in the right direction about any external componentry needed to get these running from a 12v supply (heavily filtered) will be infinitely rewarded
Thanks all,
Big_Valven
I am putting together my own car sound system and I am looking at designing a preamp for driving amplifiers and the like from the outputs of the rest of the circuit. I have found the following chips from TI:
http://focus.ti.com/docs/prod/folders/print/tlc085.html
I am particularly interested in these as they are single supply so easy to integrate in my current system, and high output (many car amps these days are capable of accepting up to 8 volts of input!) They also have a shutdown function which is important as it can integrate with the rest of my system's muting functions (avoiding pop and noise during power-up, shutdown and signal changeovers.)
A few application questions. How hard are these to build a circuit around? I am not extremely experienced with op-amps but would presume they are roughly similar to a traditional op-amp but with biasing circuitry built in to avoid external biasing when used with a single rail supply. Also, each op-amp has a + and - input but only a single output. I can only presume the - input is a reference or ground point when used in audio but not absolutely sure.
Finally, anyone who could point me in the right direction about any external componentry needed to get these running from a 12v supply (heavily filtered) will be infinitely rewarded
Thanks all,
Big_Valven