TAS5755M: Correct way to hook up speakers in 2.1 configuration

Ted Mawson 3.0

Part Number: TAS5755M

The TAS5755MEVM.pdf document shows the diagram below where the non-driven side of a single ended (SE) output has SINGLE-ENDED SPLIT-CAPs and/or do-not-populate resistors in a potential divider. This is confusing because the data sheet for the TAS5755M just shows the non-driven end of a SE speaker drive as connected to ground. I am designing a circuit for 2.1 where A & B are driving SE loads; please can you clarify what the recommended supporting circuit looks like?

Thanks.

over 6 years ago

0 Shawn Zheng over 6 years ago

TI__Mastermind 24835 points

Hello, we are looking into this and will get back you later

0 Shawn Zheng over 6 years ago in reply to Shawn Zheng

TI__Mastermind 24835 points

Hi Ted,
For 2.1 mode application, please follow the EVM design(the capacitors C28~C31 are necessary and R4~R7 are not necassary. This info is also showon in the figure 72 in the TAS5755M datasheet www.ti.com/.../tas5755m.pdf.
Best regards,
Shawn Zheng

0 Ted Mawson 3.0 over 6 years ago in reply to Shawn Zheng

Expert 1795 points

Shawn,

Thanks for the clarification, I will design the capacitors into my schematic.

Ted

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TAS5755M: Correct way to hook up speakers in 2.1 configuration