Texas Instruments TLV320AIC34EVM-K, Руководство пользователя, Страница: 31 / 46

www.ti.com
4.11 DAC/Line Outputs Tab
4.11.1 DAC Controls
TLV320AIC34EVM Software
Figure 25. DAC/Line Outputs Tab
The DAC/Line Outputs tab controls the DAC power and volume, as well as routing of digital data to the
DACs and the analog line output from the DACs. (See
Figure 25 .)
On the left side of this tab are controls for the left and right DACs.
In similar fashion as the ADC, the DAC controls are set up to allow powering of each DAC individually,
and setting the output level. Each channel's level can be set independently using the corresponding
Volume knob. Alternately, by checking the Slave to Right box, the left channel Volume can be made to
track the right channel Volume knob setting; checking the Slave to Left box causes the right channel
Volume knob to track the left Volume knob setting.
Data going to the DACs is selected using the drop-down boxes under the Left and Right DAC Datapath .
Each DAC channel can be selected to be off, use left channel data, use right channel data, or use a mono
mix of the left and right data.
Analog audio coming from the DACs is routed to outputs using the Output Path controls in each DAC
control panel. The DAC output can be mixed with the analog inputs (LINE2L, LINE2R, PGA_L, PGA_R)
and routed to the Line or High Power outputs using the mixer controls for these outputs on this tab (for the
line outputs) or on the High Power Outputs tab (for the high power outputs). If the DAC is to be routed
directly to either the Line or HP outputs, these can be selected as choices in the
Output Path control.
Note that if the Line or HP outputs are selected as the Output Path, the mixer controls on this tab and the
High Power Output tabs have no effect.
SLAU232 – December 2007 TLV320AIC34EVM-K 31
Submit Documentation Feedback