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TLV320AIC3254
Related Posts

  • Forum Post: Improve battery life and reduce time-to-market

    Luca
    Hello Everyone, Portable consumer electronic manufacturers are challenged to develop cost-efficient, high-performance, feature-rich audio solutions with longer battery life. At the same time, they are forced to reduce development time in order to be the first to introduce new products in the market...
    on Mar 20, 2009

  • Forum Post: Re: AIC3254EVM 192K sample rate recording

    J Arbona
    Hello LRHUMB, Adobe Audition (formely Cool Edit), Steinberg Cubase, Cakewalk Sonar and Goldwave are some applications that can handle 192ksps recording. However, our USB controller in the USB-MODEVM motherboard operates at USB full-speed and can handle up to 96ksps. Firmware on the EVM can be re-programmed...
    on Jun 3, 2009

  • Forum Post: Re: AIC3254 data formatting

    J Arbona
    Hi nkeddem, Yes. The AIC3254's PurePath Studio has an A-law and u-law component. The AIC3254 can do 8kHz. In order to use USB audio at 8kHz sampling, the firmware must be reprogrammed using the AIC3254 CS. Look for the Tools>EEPROM Programmer panel. Regards, JA
    on Jun 5, 2009

  • Forum Post: PurePath Mono Mux question

    Bruce12833
    I am having some trouble using the Mono Mux component. PurePath publishes the I2C Interface as Page 44, register 8. When I look at the generated driver I see it is using a 24 bit number to select the input ( address 10 holds the selection). The Mux. Help says that this interface is a 32 bit number...
    on Oct 18, 2009

  • Forum Post: PurePath support for LEC on AIC3254 miniDSP

    Wayne Duquaine
    The AIC3254 miniDSP currently has support for Acoutic Echo Cancellation (AEC) in PurePath GDE. Any plans for providing Line Echo Cancellation (LEC) as well ? It would be very handy for Telco based applications.
    on Oct 18, 2009

  • Forum Post: Re: AIC3254 and echo cancelation

    Mikael Bohman
    In the premade examples from TI, the AEC demo uses I2S as the input/output for audio. In an embedded design, it's intresting to use the A/D & D/A of the CODEC for input/output combined with the AEC. Is it possible to instead use analog Input/Outputs under the AEC framework? And if so, which...
    on Nov 2, 2009

  • Forum Post: configure TLV320AIC3254EVM to 192kHz sample rate

    Dmitry K
    Hi, Forum I'm evaluating TLV320AIC3254EVM, and using PurePath studio to generate code for it. I found the tool very userfriendly and intuitive My question is how do i configure it to 192kHz (it's 44.1 currently) and USBfirmware folder does not include image for 192 Thanks in advance...
    on Dec 21, 2009

  • Forum Post: TLV320AIC3254 Audio Interface in Master Mode

    Matt Osborne
    Hi there, I'm attempting to configure the AIC3254 audio interface for recording in master mode (i.e. to generate BCLK and WCLK), and I'm wondering whether I'm missing something... I've read the datasheet and the design guide several times, and I've used this part successfully...
    on Apr 26, 2010

  • Forum Post: TLV320AIC3254 SPI Control Interface Clarification

    Matt Osborne
    Hi there, the tlv320aic3254 datatsheet seems to be inconsistent with respect to the SPI control inteface timing diagrams: see figures 3.6 and 5.56-57 and notice the clock polarity. Could someone please clarify this? Thanks, Matt.
    on Apr 29, 2010

  • Forum Post: TLV320AIC3254EMV-U acoustic echo cancellation

    Timo Herbrecher
    Hello community. I'm trying to evaluate the TLV320AIC3254 AEC performance. Here's my hardware setup: - TLV320AIC3254EVM-U connected to a PC via USB - TPA2005D1EVM-CB connected to the Line-Out of the TLV320AIC3254EVM-U - Loudspeaker connected to the TPA2005D1EVM-CB - Microphone...
    on May 28, 2010

  • Forum Post: Using DSP's in TLV320AIC3254

    Carlos C.
    Hello, We are trying to evaluate the DSP's function in the AIC3254. Question A): We have some doubts in the way to implement interpolation and decimation filter type A (like the ones in processing blocks). How is the method to implement them at Pure Path? we will work at 8Khz. Question B...
    on Jun 2, 2010

  • Forum Post: I am using 2 TLV320AIC3254's to replace 4 TLV320AIC10/11, can I keep my 12.288MHz crytsal for MCLK

    Michael Spitze
    If I use an external 12.288MHz oscillator for the MCLK on the AIC3254 will I still get my 48KHz sample rate? Also Is there a Master/Slave mode on the AIC3254 as there was with the AIC10? The eval boards all show the USB chip providing the clock, I am using a Microcontroller. The application...
    on Aug 23, 2010

  • Forum Post: TLV320AIC3254 Input pin capacitance

    Viktorija Cecil
    What is the input capacitance of the TLV320AIC3254 pins (IN1_L, IN2_L, IN1_R and IN2_R) to ground? I found the input capacitance (10 pf) for the digital pins in the spec but not the analog pins. Thanks Viktorija
    on Oct 22, 2010

  • Forum Post: AIC3254 Sleep Mode

    Miguel S
    Hi, When the codec is not used, I put it in sleep mode, following the datasheet (5.19.1.1.2). To do that, I write Pg1 Reg 2 D(0)=0 D(3)=1, and then Pg1 Reg 1 D(3)=0. Is this sequence correct? As some parts of the codec are powered up in normal use, such as PLL and NDAC/NADC/MDAC/MADC, do I have...
    on Nov 10, 2010

  • Forum Post: AIC3204/AIC3254 Audio Digital Data Interface - Clock jitter and skipped samples

    kurt57633
    Hello, We are using a microcontroller to interface with the AIC3254. We generate the word clock via a timer interrupt and general purpose output. We then generate the bit clock and data using the SPI port. Generally this works fine. But, there is a delay of about 13 us between the word clock toggle...
    on Nov 10, 2010

  • Forum Post: AIC3254 miniDSP cycles configuration with PPS

    Miguel S
    Hi, I am using the PPS Framework AIC3254 8x4x and it limits the number of cycles of both miniDPSs to a maximum of 1016. Where does this limit come from? I thought that the number of cycles would depend on the audio sample frequency or the miniDSP_CLK, isn't it? Regards, Miguel
    on Nov 11, 2010

  • Forum Post: AIC3254 Dual Mic Noise Cancelling

    Carlos C.
    Hi, I'm reviewing the DualMic NC function of AIC3254 with PurePath v1.8 rev 10211. The properties of this component dont match with the ones in the help. Have you got any guide or app-note to use correctly? I think that its a component very interesting, and i want to evaluate. Thanks...
    on Nov 19, 2010

  • Forum Post: Re: AIC3254 Dual Mic Noise Cancelling

    Brian Burk
    Carlos, I see you are using version 1.8 of PurePath Studio. There are two things to check 1) Are you using PurePath Studio Portable Audio? There are two versions of "PurePath Studio" and the TLV320AIC3254 uses PurePath Studio Portable Audio. The other version of PurePath (non-portable...
    on Nov 24, 2010

  • Forum Post: AIC3254 codec clock/PLL

    Miguel S
    Hi, I have a couple of questions regarding the PLL and codec clock generation: 1- PLL_CLK range: in my case PLL_CLK belongs to both the low and high range. So, I don't know which range to configure. Which one is best? 2- DAC_MOD_CLK: in 5.16 of the datasheet, it is stated that the DOSR is...
    on Nov 26, 2010

  • Forum Post: Re: AIC3254 Dual Mic Noise Cancelling

    Brian Burk
    Carlos, Thanks for being patient! I have attached a description of all the DualMic_NC properties for PPS v4.80. Please see the attached PDF and let me know if you have any questions. We will update the help file in future releases of PurePath Studio Portable Audio. (Please visit the site to view...
    on Nov 30, 2010

  • Forum Post: Re: Documentation for the TLV320AIC3254EVM usb interface

    Brian Burk
    Curt, Please see the Firmware Development Kit for the TAS1020B available online. This set of documents explains developing firmware for the TAS1020B. http://focus.ti.com/docs/toolsw/folders/print/tas1020fdk.html InDesign, a development partner, is often used by our customers for support and developing...
    on Dec 9, 2010

  • Forum Post: TLV320AIC3254 EVM 192kHz firmware file?

    Sam Mitchell
    Hi, I want to do some testing on the TLV320AIC3254 Evaluation board at a sample rate of 192kHz. I have been changing the sample rate by writing firmware files through the EEPROM writer tool, but there are no files provided for sample rates over 48kHz. It would be great if I could get hold of the...
    on Jan 18, 2011

  • Forum Post: TLV320AIC32x4

    Guenther Mayer
    Hi, we plan to use a TLV320AIC3204 with I2C as control interface. Unfortunately at the CPU the I2S and SPI interface share the same pins. We want to use a SPI-EEPROM and the audio codec. When pulling TLV320AIC3204 Reset#-pin low, will the I2S pins be in high impedance mode, so that a SPI-EEPROM communication...
    on Feb 9, 2011

  • Forum Post: AIC32X4 DAC output noise

    David Whitehouse
    Hi, I've put an AIC3254 in a new design and I'm getting lots of noise in the DAC output (around 50mV p-p) - I'm running at 125kHz FS with a DOSR of 48 for a 6MHz DAC_MOD_CLK (96MHz CODEC_CLK_IN; MDAC=MDAC=4; PRB_P12; PTM3_4). Using filter B or C doesn't make any difference, and routing...
    on Feb 24, 2011

  • Forum Post: TLV320AIC3254 power up problems

    Marcel Hamer
    Hello, In our system we are using the TLV320AIC3254 audio codec. Currently we are having some strange problems with the power up sequence of our codec, where we are in the assumption that we are working according to the specification. The codec power is wired as follows: IOVDD: 1.8V LDO_SELECT: IOVDD...
    on Jun 15, 2012
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