TPA6139A2: OUTPUT VOLTAGE versus LOAD RESISTANCE

Akio Ito

Part Number: TPA6139A2

Hi,

Our customer is using MAX97720 Headphone Amplifier with their product now. We suggested to him replace it with TAP6139A2. The MAX97720 is not only used as a headphone amplifier but also used as a line amplifier for 10-k ohm load in their product. So, he requested to us TPA6139A2 measurement data same as 'OUTPUT VOLTAGE vs. LOAD RESISTANCE' in MAX97720 datasheet page 7. But we do not have a TPA6139A2EVM. Could you measure 'OUTPUT VOLTAGE vs. LOAD RESISTANCE' data of TPA6139A2 same as MAX97720 datasheet?

Best regards,

Akio Ito

over 5 years ago

0 Ivan Salazar over 5 years ago

TI__Guru* 95455 points

Hi Ito-san,

From the available specs you can now the following:

THD+N = 1% - 1kHz
Load Impedance (Ω)	Output Voltage (Vrms)
32	0.9
600	2
10000	2.2

I can run some tests on different load impedance if that helps.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Akio Ito over 5 years ago in reply to Ivan Salazar

Genius 3595 points

Ivan-san,

Thank you for your reply. I will ask whether our customer wants the data of the other load impedance?

Best regards,

Akio Ito

0 Ivan Salazar over 5 years ago in reply to Akio Ito

TI__Guru* 95455 points

Ito-san,

I'll close this thread for now. If you need data for other load impedance please reply to this post again or post a new one if this one is locked due to time out.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

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TPA6139A2: OUTPUT VOLTAGE versus LOAD RESISTANCE