The attenuator compensates for the gain of the buffer which is slightly above one. In addition, it serves as a "placeholder" in case one wants larger input signals. One can easily convert the attenuator to -6db, -12db, etc. by chaning the resistors.
Stefan
Sean Quinn wrote: |
Dear DRS4 team,
I am curious about this part of the circuit:

What is the purpose of this?
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