Dear Team:
Our customer followed our TAS5717EVM circuit and got pop noise in headphone as power on.
Do yo have any suggestion to reduce the pop noise? (Register mute, headpphone shutdown,..etc)
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Dear Team:
Our customer followed our TAS5717EVM circuit and got pop noise in headphone as power on.
Do yo have any suggestion to reduce the pop noise? (Register mute, headpphone shutdown,..etc)
Hi, Thomas,
Can you please share if your customer is using an external signal to drive HP_SD pin?, if so, It is recommended to keep the Headphone amplifier in shutdown until the power supply is stable, as mentioned in in Pop-Free Power Up section of the datasheet. Also, can you please let us know what is the input of the headphone driver (analog/HP_PWM)?
You may follow the following sequence to avoid pop issue in the headphone output.
No other change is required for register 0x05 if the driver is used with analog input and the /HP_SD pin is controlled externally.
Best Regards,
-Diego Meléndez López
Audio Applications Engineer