TPA3110D2: Schematics Review

Adithya Anil

Part Number: TPA3110D2

Hi,

Could you please review the design of the schematics attached?

I have attached two sheets. The first sheet shows the part being used as a 10W Amplifier for calling purposes. Here, only 1 channel is used. So, is it okay to leave the 2nd channel open or should the placed components be populated?

The second sheet shows the part being used as a 2 x 15W Amplifier for a Passenger Announcement (PA) System.

over 1 year ago

0 Yanming Gong over 1 year ago

TI__Mastermind 19340 points

Hi,

Firstly, do not separate ground plane. Just one complete ground plane for AMP is fine.

Sencondly, unused channel: audio input pins should be connected to GND through 1uF capacitors. BST caps are must, same as used channel. Output LC filter can be removed.

Regards,

Derek

0 Adithya Anil over 1 year ago

Prodigy 70 points

Hi Yanming,

I haven't set the power-limiting resistors. Could you please help me on the same?

I have 12V as input for both amplifiers. The first amplifier output should be single channel 10W and the second amplifier output should be dual channel 15W.

Regards,

Adithya Anil

0 Yanming Gong over 1 year ago in reply to Adithya Anil

TI__Mastermind 19340 points

Hi Adithya

The PLMT only can limit power voltage, it can not limit power.

You can tune it when you get the boards by adjusting resistor value.

Regards,

Derek

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TPA3110D2: Schematics Review