• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 302 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM1973 Example Circuit

Steven Bjornson
Prodigy 10 points
Other Parts Discussed in Thread: LM1971

I am having trouble using this chip. I have attempted to use the example circuit provided from the LM1971 but there is no Vref for the LM1973 and thus I am unable to bias the input signal. Thus, when I run my output signal into an op-amp, the negative part of the signal is essentially removed.

Any ideas?

  • 0
    TI__Guru**** 189399 points

    Hi, Steve,

    Welcome to e2e, and thanks for your interest in our products.

    Unfortunately, all the info we have on this 19 year old device is in the data sheet.

    I assume that you are using it in single-supply mode? Do you have the audio input(s) ac-coupled? Can you measure the DC voltage on the IC side of the ac-coupling caps? It should be 1/2 the power supply voltage. If not, then, that would explain your clipping.

    -d2