2022-04-06 06:47 AM
Hi team,
In my application i need to drive an external speaker (Mono Head phone speaker like telephone speaker)cable length could be up to 30mtr away from the speaker amplifier(Class-AB) and i need to drive both the single ended and differential outputs
Please suggest any Class-AB amplifiers from the ST to satisfy my requirements
Thank you
2022-04-06 10:29 AM
Welcome, @na.1, to the community!
there are currently three such amplifiers with 1-1.2W output power, which differ only in a few fine details, e.g. the housing and a few parameters:
In principle, the differential output of such an amplifier can also be operated single-ended by connecting the load to only one output and to GND, but then the maximum output power drops to a quarter. Ultimately, such a differential amplifier does not work much differently than a bridge output stage.
Does it answer your question?
Regards
/Peter
2022-04-06 10:44 AM
Hi Peter, Thanks for your response
1.you explained me about the problem when connecting single ended loads to a Differential output amplifier but i need to connect single ended load, and also it should work for the differential loads also do you have any suggestion like adding any external IC for achieving this requirement.
2.Your mentioned parts only explaining about the single ended input config vs differential input topology i didn't get any info about the single ended outputs, and in my requirement i need the output voltage at 12Volts but shared parts are satisfying the power requirement
2022-04-06 11:01 AM
2022-04-06 11:07 AM
No at a time one load only i will connect but in your answer and shared part numbers i didn't get the info regarding how to get single ended output , only given like below
2022-04-06 11:17 AM
2022-04-06 11:20 AM
Thanks for your reply i am expecting answer from you like combination of IC,s to achieve this kind of requirement its common requirement in Avionics applications
2022-04-06 11:42 AM
In datasheet only referring how it will be incase of single ended output
Not mentioning it will work for single ended outputs correct me if am wrong