| FIGURE 1 |
 |
| A digital potentiometer in (c) replaces R1 in the all-pass filter in (b) to provide digital phase-shift control in the audio-frequency band. |
back |
| FIGURE 1 |
|
| A digital potentiometer in (c) replaces R1 in the all-pass filter in (b) to provide digital phase-shift control in the audio-frequency band. |
back |