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TLV320DAC3203: Query on TLV320DAC3203IRGER

Nandhini KS
Prodigy 250 points
Part Number: TLV320DAC3203

Hi, we are going to use TLV320DAC3203IRGER Audio CODEC in our design. We need to know whether TLV320DAC3203IRGER  CODEC can drive Mono speaker? Is there any register settings available to for this?

  • 0
    TI__Guru* 84915 points

    Hi, Nandhini,

    The TLV320DAC3203 is capable to be used in both mono and stereo modes. However, it is important to remember that the analog outputs (HPL and HPR) support minimal loads of 14.4 ohms in single-ended configuration (stereo) or 24.4 ohms in differential configuration (mono).

    In case you are interested in the mono differential configuration, you may take a look at the example configuration below. 

    Mono_Differential_Output.txt 
    ###############################################
# High Performance Mono Playback
# ---------------------------------------------
# PowerTune mode PTM_P3 is used for high
# performance 16-bit audio. 
#
# Audio is routed to headphone outputs.
# Differential configuration.
#
###############################################

###############################################
# Software Reset
###############################################
#
# Select Page 0
w 30 00 00
#
# Initialize the device through software reset
w 30 01 01
#
###############################################

###############################################
# Clock Settings
# ---------------------------------------------
# The codec receives: MCLK = 11.2896 MHz,
# BLCK = 2.8224 MHz, WCLK = 44.1 kHz
###############################################
#
# Select Page 0
w 30 00 00
#
# NDAC = 1, MDAC = 2
w 30 0b 81 82
#
###############################################

###############################################
# Signal Processing Settings
###############################################
#
# Select Page 0
w 30 00 00
#
# Set the DAC Mode to PRB_P8
w 30 3c 08
#
###############################################

###############################################
# Configure Power Supplies
###############################################
#
# Select Page 1
w 30 00 01
#
# Disable weak AVDD to DVDD connection
w 30 01 08
#
# Enable Master Analog Power Control
w 30 02 00
#
# Set the input power-up time to 3.1ms
w 30 47 32
#
# Set the REF charging time to 40ms
w 30 7b 01
#
###############################################

###############################################
# Configure DAC Channel
###############################################
#
# Select Page 1
w 30 00 01
#
# De-pop: 5 time constants, 6k resistance
w 30 14 25
#
# Route LDAC_P LDAC_M to HPL/HPR
w 30 0c 08 10
#
# Select Page 0
w 30 00 00
#
# DAC => 0dB
w 30 41 00 00
#
# Power up LDAC
w 30 3f 92
#
# Select Page 1
w 30 00 01
#
# Unmute HPL/HPR driver, 0dB Gain
w 30 10 00 00
#
# Power up HPL/HPR
w 30 09 30
#
# Select Page 0
w 30 00 00
#
# Unmute LDAC
w 30 40 04
#
###############################################

    Please let me know if you have additional questions or comments.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 250 points

    Luis Fernando Rodriguez S,

    Thank you for your reply.

    We are going to use TLV320DAC3203IRGER CODEC to drive 600 ohms impedance with max power of 6dBm. For 6dBm Power, VPeak-Peak of analog signal will be +/-2.1V. will this part support this output voltage level? Please confirm

  • 0 in reply to Nandhini KS
    TI__Guru* 84915 points

    Hi, Nandhini,

    Yes, this part actually supports a higher output power. In addition, this device is able to support a Vpeak-peak level of 3.3V. So, there shouldn't be any issue regarding your requirement.

    If you need further assistance with the schematic and registers configuration, please let me know. I will be glad to help you.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 250 points

    Hi Luis Fernando Rodriguez S,

    Thank you for the clarification.

    We are going to use CODEC as Mono output (going to use only Left channel HPL).Is it possible for this configuration?

    Regards,

    Nandhini 

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 250 points

    Hi Luis Fernando Rodríguez S,

    Codec Output Voltage Peak to Peak should be 4.2V . Will this device support this level?

    Could you please share your email id so that i can share more details about the query.

    Regards,

    Nandhini   

  • 0 in reply to Nandhini KS
    TI__Guru* 84915 points

    Hi, Nandhini,

    Unfortunately, the output level is limited to the LDOin power supply level. Since it can be set at a maximum voltage level of 3.6V. The output can only reach a peak to peak level of 3.6V (from 0V to 3.6V).

    Regarding the additional information, you may contact me via E2E chat. I will be glad to discuss the details of your application through this chat.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 250 points

    Hi Luis Fernando Rodríguez S,

    Thank you for your response. We will raise our queries through E2E chat.

    We are going to use CODEC as Mono output (going to use only Left channel HPL).Is it possible for this configuration?

    And also, what is the default gain set in CODEC?

     

    Regards,

    Nandhini 

  • 0 in reply to Nandhini KS
    TI__Guru* 84915 points

    Hi, Nandhini,

    Yes, it is possible to use the device in single-ended or differential configurations with a single channel.

    Regarding the default gain in the device, all the volume or gain blocks are initially set at 0dB. You may configure a higher or lower gain through the registers configuration.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 250 points

    Luis Fernando Rodriguez S,

    Thank you for the classifications.

    How to terminate the unused pins (DOUT/MFP2 , MICBIAS , DMDIN/ MFP3, DMCLK/ MFP4, INL, INR, HPR) of  TLV320DAC3203?

    Regards,

    Nandhini 

  • 0 in reply to Nandhini KS
    TI__Guru* 84915 points

    Hi, Nandhini,

    All the unused digital pins (DOUT/MFP2, DMDIN/MFP3, DMCLK/MFP4) and the unused analog outputs (HPR, MICBIAS) can be left floated.

    The unused analog inputs (INL, INR) should be connected to 0.1uF capacitors to GND since they are biased.

    Please let me know if you have additional questions or comments.

    Best regards,
    Luis Fernando Rodríguez S.