• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 31 subscribers
  • Views 706 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC8520 and PCM1796 DAC

ANDREW MASON1
Prodigy 30 points
Other Parts Discussed in Thread: CC8530, PCM1796, CC8520, DIR9001, DIT4096, TAS5518, TAS5708, TAS5710, TAS5713, TAS5727

Hi,

I'm looking at designing a 1 master, 4 slave system.  All are operating autonomously.  Master CC8530 sends audio streams to four slaves CC8520.  Slaves 1 and 3 receive "Left" audio.  Slaves 2 and 4 receive "Right" audio.  Each slave has its own DAC PCM1796 to produce an analog output.

I want to use "Remote" method of volume control.  Pushbuttons connected to master would send volume commands to all slaves which each tell the volume to their respective DAC.   

How do I configure each CC8520 slave to send I2C volume to each PCM1796 in response to the master volume pushbuttons?  Or is PCM1796 not supportable.

Thanks,

Andrew

  • 0
    TI__Expert 3240 points

    Hi Andrew,

    The PPW Configurator has built in support for the following DACs/codecs:

    • Texas Instruments ADC3101 - Stereo analog input audio ADC
    • Texas Instruments AIC3101 - Stereo analog input/output audio codec
    • Texas Instruments AIC3204 - Stereo analog input/output audio codec
    • Texas Instruments AIC3254 - Stereo analog input/output audio codec with miniDSP
    • Texas Instruments AIC34 - 4-channel analog input/output audio codec
    • Texas Instruments DAC32 - Stereo analog output audio DAC
    • Texas Instruments DIR9001 - SPDIF receiver (Note: CC85xx supports LPCM input only)
    • Texas Instruments DIT4096 - SPDIF transmitter (Note: CC85xx supports LPCM output only)
    • DSP - DSP or other audio device with/without I2C configuration
    • Texas Instruments TAS5518 - 8 channel digital audio PWM processor
    • Texas Instruments TAS5708 - 20-W stereo digital amplifier
    • Texas Instruments TAS5710 - 20-W stereo digital amplifier
    • Texas Instruments TAS5713 - 25-W stereo digital amplifier
    • Texas Instruments TAS5727 - 25-W stereo digital amplifier

    It is however also possible to create new "audio device definition file" for other I2C or pin configurable DAC/codec, to be able to control other devices as e.g. the PCM1796.

    If you want to create your own audio device definition file, you can use the included audio device definition files as a starting point, these files can be found in:
    <some path>\Texas Instruments\PurePath Wireless Configurator\audio_devices

    Best regards,
    Johan