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usb audio codec
Related Posts

  • Forum Post: USB audio codecs, PCM290x(B)

    Bogic Petrovic
    Hi! :) What happened with PCM290x(B)? I cannot find information about it, anywhere on TI site. Only some development boards. Best regards, Boggy
    on May 3, 2009

  • Forum Post: Biquad Coefficient calculations using the TI calculator for the TAS5508 GUI

    Tom Hinckley
    Hi I'm trying to calculate the coefficients to use in the TAS5508 GUI, I found the TI Biquad Coefficient Calculator but the the numbers do not seem to produce the same results in the GUI. I assume I'm missing something silly. I want to produce a low pass filter >100Hz with a bit of a...
    on Feb 11, 2010

  • Forum Post: USB Audio 2.0

    Huang Hen-Hsen
    Does TI have a plan to launch the USB Audio Class 2.0 solution? http://www.usb.org/developers/devclass_docs/Audio2.0_final.zip Hope TI announce a series of chips supporting USB Audio Class 2.0 as well as the PCM 27xx series for USB Audio 1.0.
    on Nov 14, 2010

  • Forum Post: TLV320AIC3100EVM-U CodecControl

    Jernej Kroflič
    Hi. I have a problem with interfacing TLV320AIC3100EVM-U Evaluation module with my PC via USB cable. I have installed the slac366a software and run CodecControl.exe. When I connect the evaluation module i get an error: "'680.0' is not a valid floating point value" and an empty progress...
    on Jan 6, 2011

  • Forum Post: Re: PCM2906B custom USB device descriptor?

    Eric Brombaugh
    I'd be curious to find out as well. I've got an application for the PCM2906B that require low power operation. The circuit works fine and draws only about 60mA, but the PCM2906 default descriptor asks for 500mA, so the device won't work with some low power hosts. What would it take to customize...
    on Apr 14, 2011

  • Forum Post: Re: PCM2906B custom USB device descriptor?

    Eric Brombaugh
    Don, Thanks for the quick reply. Unfortunately our market isn't large enough to support a 100k commitment for parts so this won't work for us. It appears that the older PCM2900/PCM2902 devices report a 100mA current draw in their device descriptors, so despite the fact that they're "Not...
    on Apr 14, 2011

  • Forum Post: Re: PCM2906B custom USB device descriptor?

    Eric Brombaugh
    Jonathon, Thanks for the pointer to the PCM290x errata sheet. The 1kHz tone and inter-channel phase differences shouldn't be a big deal for us since the primary operating mode will be 16-bit 44.1kHz stereo and phasing isn't crucial in this application. The long-term pop-noise issue may be...
    on Apr 14, 2011

  • Forum Post: Re: PCM2902E Playback WinXP

    Manfred Dill
    Hi Don, thank you for the quick answer. On the Sounds and Audio Device Panel the Default Device ist Usb Audio CODEC and the use only default devices flag is on, sound recording device is Usb Audio Codec and Playback device ist my sound card. If I would not set the use only default devices flag...
    on May 10, 2011

  • Forum Post: Re: how to configure the AIC3204's sampling rate at 192K without using the C filter?

    Kieran Yu
    hi MS so the decimation filter must be used, chosing among A filter, B filter and C filter. " The TLV320AIC3204 offers 3 different types of decimation filters. The integrated digital decimation filter removes high-frequency content and down samples the audio data from an initial sampling rate...
    on May 19, 2011

  • Forum Post: Audio ground loops

    alex dinovitser
    Dear TI, I am designing hi fidelity audio systems employing a PCM2704 connected to a computer by a long USB(1) cable. During prototyping, I found the major source of noise was due to a ground loop. This loop was formed by capacitave coupling from the laptop power supply to ground, and the grounded...
    on Jun 9, 2011

  • Forum Post: tlc320aic23 audio codec: spi interface using an FPGA - I cannot activate the device

    Phil Culverhouse
    I am driving a tlc320aic23 audio codec via the spi interface using an FPGA. I have arranged the spi signals as per the data sheet, and configured registers 9,7 and 8. These set the following bits: R9 activate (bit 0) R7 16bit (default), 96KHz filter mode 3 (bits 1,0 == 11) R8: MCLK, USB (bit...
    on Jun 16, 2011

  • Forum Post: Re: TLV320AIC3254EVM-U - EEPROM Writer?

    Dean Anderson
    Hi Jorge, Thank you for your detailed instructions. I ordered and received a 2nd AIC3254EVM-U. I am now using a Windows XP computer and this new module is functioning. Your AIC3254 CS software appears to function with the new EVM. I am still having problems with the first EVM... I followed...
    on Jul 13, 2011

  • Forum Post: Re: AIC3104 Output Noise

    ivan mercier
    Hi, We have the problem with our codec tlv320aic3104...I'm already using L1/R1... I think the problem comes from DAC when it power up. Is there any reserved register we can configure to enable auto mute DAC like aic32XX ? Thank you
    on Sep 8, 2011

  • Forum Post: TLV320AIC3104 : volume level changing makes noise on outputs

    ivan mercier
    Hi, I'm trying to use TLV320AIC3104 as Head Phones and Speakers Audio codec. My problem is about changing independently audio output levels. I can't tune the level with DAC level control (with soft stepping) because it will change both signal levels. So I decide to use...
    on Sep 19, 2011

  • Forum Post: USB CODEC* PCM2904

    eli
    Our application is to record the two audio inputs VinR and VinL to the PC (via USB). We are not playing any sound to the audio outputs. Do we need to add low pass filter before VinR and VinL (PCM2904 audio inputs)? in The picture from page 27 of the datasheet. The application is using a regulator...
    on Mar 6, 2012

  • Forum Post: Re: USB CODEC* PCM2904

    eli
    Thank you for the detailed reply It seems that the PCM2900 and PCM2902 have the same performance as the PCM2904. Is there a reason why not to use the PCM2900 or PCM2902 in our design? They have EVB and we can test exactly the configuration of our product. What is the advantage of using the PCM2904...
    on Mar 8, 2012

  • Forum Post: PCM2906 windows7

    1999150
    Hello, for my application I working with the pcm2906c which works fine on the WindowsXP , but on the Windows seven the input Line is recognized as a microphone input and the gain is very high. I can't find a setting in windows. thanks, Simon
    on Mar 21, 2012

  • Forum Post: Re: PCM2906 windows7

    1999150
    Hi Patrick, excuse me you are right , we currently use the PCM2906B, because the PCM2906C is still preview. Is what you know when it will be available in sample ? Thanks you,
    on Mar 22, 2012

  • Forum Post: TLV320ADC3101 Evaluation Module (EVM) and USB motherboard driver installation problem

    Ali Imtiaz
    Hi, We have recently obtaned the TLV320ADC3101EVM however I am unable to connect to it via USB, I am also unable to use ADC3101 CS software to configure my EVM. I have looked at the Debugging guide availiable but that hasn't helped either. I installed the software from the following link:ftp:...
    on Apr 17, 2012

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