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Part Number: TPA3116D2
Could you please suggest the bridge IC for converting the Class-D amplifier output to the line output ?I am considering attenuating the output signal of the TPA3116D2 using the potentiometer, the operational amplifiers and outputting the attenuated signal to the line out output.For the line driver DRV632 is reasonable, but the operational amplifiers that can attenuate the audio signal to approximately from -26 dB to 0 dB with the potentiometer are necessary.So, could you please review the attached TINA-TI schematic which is designed based on the following application note ?
TPA3116D2EVM Evaluation Modulehttp://www.ti.com/lit/ug/slou336b/slou336b.pdf
TIPD118 Verified Design Reference Guidehttp://www.ti.com/lit/ug/slau518/slau518.pdf
DRV632EVM Evaluation Modulehttp://www.ti.com/lit/ug/slou301/slou301.pdf
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In reply to Xiaolin Qin:
Thank you for your support.
The purpose is that the output signals of TPA3116D2 are converted to the low level voltage which can be monitored with the relatively simple equipment.
I am looking forward to getting the review result from you.
In reply to Sadanori Kato:
Thank you for the comments.
It would be very helpful if you could modify the attached schematic.I am looking forward to hearing from Dylan-san.
Sorry for rushing you but please let me know if you have any updates.
In reply to Dylan Yao:
Thank you for your prompt reply.
I am looking forward to hearing from you again.
It would be very helpful if the line driver can be configured by using only OPA1611.So, could you please provide the recommended schematic to me if converting the differential output from TPA3116D2 to the single-ended line driver output with -20dB gain for OPA1611 ?
Sorry for rushing you but please let me know if you have any updates ?
I am worried that when using the OPA1611 at 24 V, it maybe be output with large amplitude to the line output, so the line receiver will be damaged.In addition, the positive and negative power supplies are required.
Please let me know if you have a good idea.
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