LM4950: connection of unused channel

Shinichi Inoue

Guru 20536 points

Part Number: LM4950

Dear Specialists,

My customer is designing LM4950 and has a question.

I would be grateful if you could advise.

---

I'm thinking to use LM4950 only 1 channel (SE use) .

Could you please advise the terminal connection of the unused channels with attached file.

If 7 and 9 pin are not used, short between pins 7 and 9 just like a normal operational amplifier.

Is it correct?

---

I appreciate your great help in advance.

Best regards,

Shinichi

over 6 years ago

0 José Luis over 6 years ago

TI__Mastermind 20085 points

Hi Shinichi,

If the customer disconnects those pins, so the speaker won't get all the output signal as part of the signal goes to the AMPb.

Best Regards
José Luis Figueroa
Audio Applications Engineer

0 Shinichi Inoue over 6 years ago in reply to José Luis

Guru 20536 points

Hi Jose,

Thank you for your reply.

I understand if LM4950 unused, all of input and output pins should be left open.

I'll share this information with my cutomer.

I appreciate your great help.

Best regards,

Shinichi

Audio

Audio forum

LM4950: connection of unused channel