TPA3221: Noise Floor and SNR @ 24,30,34dB

Antonio Faggio

Part Number: TPA3221

Hi,

My customer is evaluating TPA3221 and need some information.

The datasheet specifies Noise floor and SNR with gain setting = 18dB and AD modulation. Could you get the quantities in case of gain setting 24, 30 and 34dB, and HEAD modulation?

Please see attached.

Many Thanks,

Antonio

over 5 years ago

0 Caro Walter over 5 years ago

TI__Mastermind 22182 points

Hello Antonio,

To clarify, you would like to know both the Vn and SNR as shown in the table below?

Modulation	Gain Setting	Vn	SNR
HEAD	18
HEAD	24
HEAD	30
HEAD	34

All the best,

Carolina

0 Sam(MPAA) Zhang over 5 years ago

TI__Mastermind 19080 points

Hi Antonio,

We need to run some bench test on this. Will give you the result ASAP. Thanks!

Regards,

Hao

0 Sam(MPAA) Zhang over 5 years ago

TI__Mastermind 19080 points

Hi Antonio,

Please find the result below,

PVDD=24V, Head modulation,

18dB -> 71uV;

24dB -> 85uV;

30dB ->119uV;

34dB ->150uV

SNR can be calculated based on noise level. Thanks!

Regards,

Hao

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TPA3221: Noise Floor and SNR @ 24,30,34dB