Embedded Target for Texas Instruments C6000 DSPs

C6711 DSK DAC

Use and configure the codec to convert digital input to analog output

Library

c6711dsklib in Embedded Target for TI C6000 DSP

Description

Adding the C6711 DSK DAC (digital-to-analog converter) block to your Simulink model provides the means to output an analog signal to the LINE OUT connection on the C6711 DSK mounting bracket. When you add the C6711 DSK DAC block, the digital signal received by the codec is converted to an analog signal. After converting the digital signal to analog form (digital-to-analog (D/A) conversion), the codec sends the signal to the output audio jack.

One of the configuration options in the block affects the codec. The remaining options relate to the model you are using in Simulink and the signal processor on the board. In the following table, you find each option listed with the C6711 DSK hardware affected by your selection.

Option	Affected Hardware
DAC attenuation	Codec
Overflow mode	TMS320C6711 Digital Signal Processor
Scaling	TMS320C6711 Digital Signal Processor

To attenuate the output signal after the D/A conversion, select an attenuation from the DAC attenuation list. Available attenuation values range from 0.0 to 36.0 dB in 1.5 dB increments. You must select from the list; you cannot enter a value for the attenuation.

Dialog Box

Scaling

Selects whether the input to the codec represents unmodified data, or data that has been normalized to the range ±1.0. Matching the setting for the C6711 DSK ADC block is usually appropriate here.

DAC attenuation

Specifies the amount to attenuate the block output after D/A conversion.

Overflow mode

Determines how the codec responds to data that is outside the range specified by the Scaling parameter.

See Also
C6711 DSK ADC

C6711 DSK ADC

C6711 DSK DIP Switch