TS5A22364: Negative signal swing

Part Number: TS5A22364

Tool/software:

Hi Sir,

My customer used the TS5A22364 to do the audio signals switch for headset.

They want to confirm if their understanding below is correct. Please advise by return. Thank you!

Refer to the section 8.3.2, if they applied +5V to Vcc pin, it means the max. negative signal swing is (Vcc-5.5V)= -0.5V ?

Because they found that its THD still is rather low even it swings up to negative 1.414V.