TAS5411-Q1: Could you please review the schematic design and make some suggestions?

Xiaofu,

Thank you for the opportunity to review your schematic.  All three pages appear to be identical, so I will only look at Amp A on the first page.

• Please use the new device, TAS5431-Q1.  
• I cannot see if your source is differential (balanced) or not.  If it is balanced, R15, and R16 are not needed.
• On /STBY pin, a pull down is recommended, instead of a pull up (this would depend on the logic to control this pin).
• On the MUTE pin a pull up is recommended, delete R27, keep R21
• C639 and C640 should be 3.3uF
• The power input inductor does not need to be 10uH/7A.  It can be 1uH/2A.
• C598 can be 220uF

Regards,
Gregg Scott

Xiaofu,

We recommend the newer device.  The TAS5411-Q1 has a stable supply and there is no plan to discontinue it at this time.

Regards,
Gregg Scott