TAS5760M: TAS5760M - Output Level Not The Same

C%20K%20Ong

Expert 1240 points

Part Number: TAS5760M

Dear Sir,

We noticed that at high output level, the signal level on L and R channel can be different by around +/-1dB.

For example, L channel can be 24W while R channel is 26W.

Is this normal?

0 Alix Wan over 4 years ago

Hi Customer,

It may be caused by analog gain variations when die is hot. Can you also check in small input level ?

Alix Wan

0 C%20K%20Ong over 4 years ago in reply to Alix Wan

Expert 1240 points

Dear Alix,

Smaller input has smaller variations.

0 Alix Wan over 4 years ago in reply to C%20K%20Ong

Hi Customer,

The variations seem to be caused by the mismatch of analog part of the class D (feedback resistor in the loop). +/- 1dB is within the design spec.

Thanks!

Br,

Alix Wan.

0 C%20K%20Ong over 4 years ago in reply to Alix Wan

Expert 1240 points

Thank you.

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