Rob Flinn
Well-known member
Hi folks
I have a scenario where I am building a 4 channel amp using some class D amps that will be running on a single ended PSU that have unbalanced inputs. They will be used in a potentially noisy broadcast type environment & the plan is to add some SSM 2143 that we have knocking around to create balanced inputs.
I have knocked up a small pcb which is using a 5534 to split the power rail & provide a centre tap. However the centre tap will not be the 0v rail of the single ended PSU. Assuming I use an output cap on the chip my question is how comfortable will the chip be if the output is referencing to it's -ve power rail instead of the psuedo centre tap that I have created to run the chip ?
AM I overthinking this or have I got my idea wrong ?
I have a scenario where I am building a 4 channel amp using some class D amps that will be running on a single ended PSU that have unbalanced inputs. They will be used in a potentially noisy broadcast type environment & the plan is to add some SSM 2143 that we have knocking around to create balanced inputs.
I have knocked up a small pcb which is using a 5534 to split the power rail & provide a centre tap. However the centre tap will not be the 0v rail of the single ended PSU. Assuming I use an output cap on the chip my question is how comfortable will the chip be if the output is referencing to it's -ve power rail instead of the psuedo centre tap that I have created to run the chip ?
AM I overthinking this or have I got my idea wrong ?