
AD1893
–16–
REV. 0
System Mute
The mute function applies to both right and left channels on the
AD1893. The user can include a system specific output mute
signal, while retaining the automatic mute feature of the
AD1893 by using the circuit shown in Figure 14.
Figure 14. External Mute Circuit
Performance Graphs
Figure 15. Dynamic Range from 20 Hz to 20 kHz,
–60 dBFS, 48 kHz Input Sample Frequency, 44.1 kHz
Output Sample Frequency, 16k-Point FFT, BH4 Window
Figure 16. 1 kHz Tone at 0 dBFS, 48 kHz Input Sample
Frequency, 44.1 kHz Output Sample Frequency,
16k-Point FFT, BH4 Window
Figure 17. 15 kHz Tone at 0 dBFS, 48 kHz Input Sample
Frequency, 44.1 kHz Output Sample Frequency,
16k-Point FFT, BH4 Window
Figure 18. THD+N vs. Frequency, 48 kHz Input Sample
Frequency, 44.1 kHz Output Sample Frequency, Full-Scale
Input Signal