TPA3221: The duty of idle mode of HEAD Modulation

Charlie Xiao

Expert 5250 points

Part Number: TPA3221

Tool/software:

Hi BU expert,

What is the duty of idle mode of HEAD Modulation? Thanks.

Regards，

Charlie

1 month ago

0 Sam Yang 1 month ago

TI__Intellectual 1820 points

Hi Charlie,

Are you asking for the exact duty cycle when in Idle HEAD configuration? In general the HEAD idle state has time periods where both PWM signals are at 0V. They have a lower duty cycle when compared with Idle AD. Thanks.

Regards,

Sam

0 Charlie Xiao 1 month ago in reply to Sam Yang

TI__Expert 5250 points

Hi Sam,

Thanks for your support. I know they have a lower duty cycle when compared with Idle AD. But what is the duty cycle when in in Idle HEAD mode? Thanks.

Regards,

Charlie

0 Sam Yang 1 month ago in reply to Charlie Xiao

TI__Intellectual 1820 points

Hi Charlie,

It is around 20 percent. Thanks.

Regards,

Sam

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TPA3221: The duty of idle mode of HEAD Modulation