DEM-DAI1742 Datasheet, PDF (10/10 Pages) Burr-Brown (TI) – EVALUATION FIXTURE

ister to control its level. In the Attenuation window, there is
a slider for each attenuator register. Use the slider handle or
the arrows at each end of the slider to adjust the attenuation
level. The left and right arrow keys on the keyboard can also
be used to adjust the level. Just below each slider is a status
display showing the current register setting (in decimals)
and the corresponding attenuation level in decibels (dB).
The Operational Control Window
The Operational Control window is shown in Figure 13.
This window is used to set the following functions:
• Soft Mute (Mute Lch, Mute Rch): ON or OFF
• DAC operation (DAC Lch, DAC Rch): ON or OFF
• Digital De-Emphasis (DEM): OFF, 32kHz, 44.1kHz, or 48kHz
The Function Control Window
The Function Control window is shown in Figure 14. This
window is used to set the following functions:
• Audio Data Format (Format)
• Digital Filter Low-Pass Response (Roll-Off): Sharp or Slow
• Zero Flag Output: Active HIGH or Active LOW
• Output Phase: Normal or Inverted
• L/R Zero Flag: Independent or Common
• Oversampling Rate: 64/32f_S or 128/64f_S
FIGURE 13. Operational Control Window.
For more information regarding these functions, refer to the
PCM1742 data sheet.
FIGURE 14. Function Control Window.
For more information regarding these functions, refer to the
PCM1742 data sheet.
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DEM-DAI1742
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