TAS5751M: What is "Speaker amplifier gain"?

user5372746

Prodigy 100 points

Part Number: TAS5751M
Other Parts Discussed in Thread: TAS5756M

I cannot find the value of "Speaker amplifier gain" of TAS5751 in the datasheet.

What is "Speaker amplifier gain"?

For example, in case of TAS5756, it is 20dB or 26dB like the below picture. (depend on the SPK_GAIN/FREQ pin setting)

over 7 years ago

0 user5372746 over 7 years ago

Prodigy 100 points

Is this speaker amplifier gain depend on power supply(PVDD)?

Now, power supply(PVDD) is 18.5V.

Best Regards,

Hattori

0 Shawn Zheng over 7 years ago in reply to user5372746

TI__Mastermind 24835 points

Hi Hattori,
TAS5751M doesn’t have this parameter because it’s an open-loop device, while TAS5756M is a closed-loop device. You can adapt the gain in the volume register 0x07.
Best regards,
Shawn Zheng

0 user5372746 over 7 years ago in reply to Shawn Zheng

Prodigy 100 points

Dear Shawn Zheng,

Thank you for your reply.

I understand it.

Best Regards,

Hattori

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TAS5751M: What is "Speaker amplifier gain"?