Audio Converters

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Audio Converters

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  • Forum Post: TLV320AIC3107 Initialisation sequence

    CHli
    Hi, First I wanted to tell other users of that Codec that the standard Linux Drivers (as in 2.6.35) for the TLV320AIC3x codec range is not completely compatible with the TLV320AIC3107. These are the two problems I saw so far : - The intergrated Class-D amplifier control is not supported...
    on Sep 23, 2010

  • Forum Post: Problems with Hand Set Echo cancellation in AEC3254.

    Javier Martin19423
    Hi, we are following "AIC3254 Acoustic Echo Cancellation" document that can be found under "C:\Program Files\Texas Instruments Inc\PurePath Studio Portable Audio\ApplicationNotes". In our case, we are trying to test Hands Set echo cancellation as it is stated in page 17 of this document...
    on Dec 15, 2010

  • Forum Post: Use Headphone out of TLV320AIC23B in DC coupled mode

    Andreas Geisreiter
    Hello, I will use the headphone output of the AIC23B without capacitors in pseudo-differential mode with virtual ground . Is it possible with the ACI23B? And is it possible to use the VMID pin for the virtual ground? And which GND do I have to connect to the HPGND pin, GND or the virtual GND? ...
    on Feb 2, 2011

  • Forum Post: TLV320AIC23B crystal selection

    Andreas Geisreiter
    Hello, I can't find the specifications for the 12MHz crystal in the datasheet ( http://www.ti.com/lit/gpn/tlv320aic23b ). Which load capacitance, ESR do I need? Best regards, Andreas
    on Feb 2, 2011

  • Forum Post: USB to Audio - single chip solution

    Calum Mackinnon
    Hi, First I hope I am in the right forum - if not please let me know. I have a customer who wants something that meets the requirements below. I've looked the TUSB3200 but it's not quite there. Do you have anything that would be closer? The customer makes professional and mass market...
    on Mar 17, 2011

  • Forum Post: AIC3204 low-frequency rolloff

    R. Jesup home
    I'm trying to figure out the source of a roll-off below around 800Hz with the AIC3204. The output from the line-out drivers (LOL/LOR) is flat, so I believe the output from the DACs is flat. However, the output from the headphone amps (HPL/HPR) has an extreme rolloff below around 800Hz. Rolloff is...
    on Mar 28, 2011

  • Forum Post: Howling supression TLV320AIC3254

    Carlos C.
    Hi all, Have somebody any idea to implement an howling suppresion in a TLV320AIC3254? Is it possible? Thanks in advance. Carlos
    on Mar 31, 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: TLV320AIC3101

    gum milard
    Hi., Im gumilard currently I have one a TLV320AIC3101EVM and TLV320AIC3101EVM-PDK., I had installed the software and hardware detected properly as described., I've never changed any jumper at both of the board's (TLV and USB motherboard) the jumper always on the same position as I bought...
    on May 2, 2011

  • Forum Post: TLV320AIC33 CODEC

    Jack99
    Hi, I hope this is the correct forum. I am using the TLV320AIC33 in a handheld radio system. The problem I have is when I change the volume of the output (using page 0 / Register 43), I seem to get different levels of (white?) noise depending on what the Left DAC Digital Volume Control Setting...
    on May 10, 2011

  • Forum Post: TLV320AIC26 Filter coefficients

    saci
    Hi all, I use TLV320AIC26 codec but i haven't used "ti biquad coefficient calculator" before and i don't know how to use it. I can't understand which values to write to codec registers. Can anyone explain or have a manual for this program. Thanks Best Regards
    on May 10, 2011

  • Forum Post: TLV320AIC1103EVM/USB-MODEVM driver for windows XP 64bit

    Bentzi Ben-Moshe
    I am trying to install TLV320AIC1103EVM-K on my workstation which runs windows XP x64bit. I followed the instruction and made restart and board connection to the USB port of the PC. The driver setup ("Found new hardware etc.") failed, and the following note appeared: "The hardware was...
    on May 12, 2011

  • Forum Post: TLV320AIC3254 codec driver

    Kuldip Sahni
    HI , I am working on omap3 evm kit and we are using TLV320AIC3254 as our audio codec module. The driver code provided by TI has 2 .c files, viz. tlv320aic3254_mini-dsp.c and tlv320aic3254.c. The main driver code i.e. tlv320aic3254.c has a dependency on tlv320aic3254_mini-dsp.c which in turn needs...
    on Jun 6, 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: TLV320AIC3105 headset with mic detection and Hook Button press detection

    Jey Krish
    Hi, I am using TLV320AIC3105 audio codec for my headphone and mic communication. I am trying to detect headset with mic & also hook button press detection. I enabled headset detection scheme using Reg 13 (D7) and could able to detect headset insertion & removal using Reg 14 (Page 0) and also...
    on Jun 17, 2011

  • Forum Post: TLV320AIC3104 problem

    ivan mercier
    Hi, I'm trying to use TLV320AIC3104 as an audio codec communicating by I2S in master mode with a FPGA.My setup is about recording audio samples and send them through I2S bus. A audio signal is plugged to both Lines IN, the clocks BCLK, WCLK are properly generated by this codec and the MCLK...
    on Jun 29, 2011

  • Forum Post: Silicon Errata for AIC3101

    KB2603
    Hi Is there any silicon errata for AIC3101? Thx KB2603
    on Jul 5, 2011

  • Forum Post: driver for TLV320AIC3254 audio codec

    Kuldip Sahni
    I am using omap3evm kit (AM/DM 37XX processor ) . and we will be using TLV320AIC3254 Audio codec . so I want drivers for TLV320AIC3254 for linux ( version : 2.6.32) , how can i get it? So pls help me to find it out......... Regards kuldip
    on Jul 6, 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: Multi Channel Audio DAC

    Viral Sachde
    Hi, I am designing device having one multi-channel (6 Channel) audio output. For Audio DAC, I am considering DSD1608 or equivalent Multi channel Audio DAC. As per my understanding, I will need 3 IIS port. Can someone suggest me any processor having 3 or more IIS or audio port. Also, is it possible to...
    on Aug 6, 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: TLV320ADC3101 ADC reolution

    Ali Imtiaz
    Hi I am using the TLV320ADC3101EVM-K and have configured it in 24 bit mode however the last 8 LSB bits only seem to change from 0x00 to 0xFF, is the ADC not capable of operating with true 24 bit resolution ? here is an example of some of the data I obtained from the ADC f624ff00 f65f0000 f6e5ff00...
    on Apr 26, 2012
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