TAS2563: TAS2563 Idle channel detection register

JY SEE

Part Number: TAS2563

Tool/software:

What is the register address and setting to disable this feature?

I cant find it inside datasheet

0 Ivan Salazar over 1 year ago

Hi Joo,

This is controlled by Book 0 Page 0 Register 0x3e Bit 4:

Best regards,
-Ivan Salazar
Applications Engineer

0 JY SEE over 1 year ago

By default, this feature is enable? What is the default register setting value for 0x3E?

0 David Mckinney over 1 year ago in reply to JY SEE

Hi Ivan;

JY is also asking:

What is the default register setting value and can I have details of each bit for 0x3E? Any other register else will control the idle channel detect?

0 Ivan Salazar over 1 year ago in reply to David Mckinney

Hi Joo, David,

Yes, Idle Channel Detect feature is enabled by default.
Default value of register 0x03e is 0x10. Only this register should control the feature.

Best regards,
-Ivan Salazar
Applications Engineer

0 JY SEE over 1 year ago in reply to Ivan Salazar

Hi Ivan,

I tried to use purepath try to change the Idle Channel Detection threshold.

But after change, i didnt see any change in the register setting map.

What is the register address to change the threshold?

Beside that, what is the default threshold for Idle Channel Detection?

+1 Ivan Salazar over 1 year ago in reply to JY SEE

Hi Joo,

Did you use the "apply" button at the top-right after changing the threshold?

Enable/Disable feature is as mentioned above Book 0 Page 0 Register 0x3e Bit 4:
- 0x10 means Idle Channel Detect Enabled
- 0x00 means Idle Channel Detect Disabled
Threshold is controlled by 4-byte coefficient in Book 0 Page 2 Registers 0x5c through 0x5f
- round(10^(idle channel threshold dB/20)*2^31)
Hysteresis timer is controller by 4-byte coefficient in Book 0 Page 2 Register 0x64 through 0x67
- round(time in seconds*fs)

It is still recommended to use PPC3 to generate the proper coefficient values, as it will account for any value range limitations.

Best regards,
-Ivan Salazar
Applications Engineer

Audio forum