Audio Amplifiers

Browse by Tags

Audio Amplifiers

Welcome to the Audio Amplifiers Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

Tags
You have subscribed to this tag. To view or manage your tag subscriptions, click here.   Close
You have unsubscribed from this tag. To view or manage your tag subscriptions, click here.   Close
You are currently viewing:
AUDIO
Related Posts

  • Forum Post: TAS5705 I2C Problem

    Steven47199
    I'm using AT89S51 to control TAS5705 through I2C Bus.I want to adjust the volume through I2C interface.(2.0 BTL BD Mode,I2S 16bit 44khz) Here the steps I've done to initial TAS5705:(MUTE=1,FAULT=1,RESET=1) 1.write 0x00 to 0x1B and wait for 1s 2.write 0x00 to 0x05 and wait for 1s 3...
    on Apr 7, 2010

  • Forum Post: RF Testing TPA301

    Dean Micheli
    Hi, I am wondering if there are any design notes on RF tests that have been performed on this amplifier. I am trying to design a PCB capable of withstanding 20W RF 30MHz-512MHz AM/FM. I have looked into PCB shielded enclosures, Wave Absorbers, etc. It would be very helpful to know what weaknesses...
    on Aug 30, 2010

  • Forum Post: TPA3112d1 overvoltage issue?

    Pepijn Herman
    Hello, I am building a design with 2 TPD3112d1 amplifiers. My design runs on a 24V li-ion pack. This pack when fully charged puts out 29.5V. When I test my design on the lab powersupply and turn up de voltage slowly on the amplifiers they shut down when I pass exactly 26.1 volts. The fault...
    on Feb 21, 2011

  • Forum Post: TAS5713 in PBTL connection

    DJ
    I am using the TAS5713 in a PBTL configuration and had requested TI tech support insofar as the proper electrical connections. I received the attached drawing showing the connections. I have the TAS5713EVM board which is wired as 2 BTL (stereo) outputs and have noticed that the PCB layout for the boost...
    on Mar 5, 2011

  • Forum Post: Re: TAS5713 in PBTL connection

    DJ
    Thanks Don. I appreciate your taking the time to respond to this, although I think you discounted the TAS5713 a bit too quick, i.e. it too has a dedicated PBTL line on the part. In fact, the pin-outs of both these parts are nearly identical, with the exception that the separate PVDD pins for bridge outputs...
    on Mar 11, 2011

  • Forum Post: Heat sink question on TAS5630

    Bruce Morley
    We are working on a mechanical design for an audio company and they are using the TAS5630DKD. Their preliminary design idea is to use the aluminum enclosure to act as the heat sink by mounting the chip such that the heat slug comes into contact with the bottom enclosure panel (this would be in place...
    on Apr 16, 2011

  • Forum Post: TPA3123D2 Problem

    Bohyun Bang
    I designed TPA3123D2 amp board. But TPA3123D2 can't control volume. And there is lm3s8962 on my board. Power source is 24DCV, and speaker's impedence is 4ohm. I was using my mp3 for testing. But it doesn't work well. Speaker's volume is very very small.(I tried with maximum mp3...
    on Apr 29, 2011

  • Forum Post: TPA6130A2

    Joseph Giardina
    I am using the TPA6130A2 and cannot seem to get the part to respond to the I2C commands. I have a common I2C bus and the other devices (with non-conflicting) addresses are working fine. I have tried both single and multiple byte writes and tried to read the Version register but get back all zeros. ...
    on Jun 7, 2011

  • Forum Post: TAS5713 inconsistent audio output generation

    DJ
    We are using the TAS5713 in a new design, and are gearing up for production. The prototype boards worked great except for a problem where on some power up cycles, we were unable to get audio out of the chip. Power cycling the board (sometimes several times) would correct the problem. There are a couple...
    on Jul 6, 2011

  • Forum Post: Re: TAS5713 inconsistent audio output generation

    DJ
    Thanks for your response Don. In regards to your question on my item #1: I meant that the current draw by our board was pretty much the same whether or not we were actively driving the speaker with audio. This seemed rather strange because if we weren't pushing power thru the speaker, then how...
    on Jul 7, 2011

  • Forum Post: PCM1794 differential outputs with OPA1612

    Trond Haugen
    Hi, I am designing an audio DAC - simple, but with high quality components. The I/V conversion and filtering of the PCM1794 outputs is based on the application circuit on page 16 in the OPA1611/OPA1612 datasheet. However, I wish to retain the differential outputs (without adding a second PCM1794)...
    on Jul 10, 2011

  • Forum Post: Class-D Audio Amplifier Options

    Bret55761
    Hi, I have a product that uses the TPA032D03 10-W Mono Class-D Audio Power Amplifier IC. This chip is obsolete according to my vendors, and we are looking at modifying our design to support a new chip that will continue to be available in the future. Does the TPA032D03 have a suitable replacement...
    on Aug 19, 2011

  • Forum Post: TAS5713 "click" on audio startup

    DJ
    We are using the TAS5713 digital audio amplifier in a product. The chip is configured in PBTL mode for a single channel audio output. We have working product/firmware and just completed a pre-production build of 110 boards. During production test of the boards, we discovered > 10% of the boards have...
    on Aug 25, 2011

  • Forum Post: Re: TAS5713 "click" on audio startup

    DJ
    Don, I figured you might be on vacation without your laptop or iPhone ;-). This has not been resolved, albeit we chose to implement a temporary band-aid on the problem not putting the PA chip in shutdown when audio is not playing. This means that our power consumption is about doubled when the...
    on Sep 15, 2011

  • Forum Post: Re: TAS5713 "click" on audio startup

    DJ
    Tuan, We tried BD modulation and the problem is gone! Now, I have a couple of questions: 1. Why does this fix the problem? 2. We have the recommended capacitor on the SSTIMER pin for AD modulation. If this part is left on the boards, are we going to have problems with running BD modulation...
    on Sep 27, 2011

  • Forum Post: Re: shutting down half of TAS5613

    Anthony Smith
    The application is a battery backed amplifier for emergency use, I dont want to switch between dual BTL and PBTL; I want to lay the board for PBTL only, and omit the filter components on C+D when we want the low power solution; As it is battery powered, I wanted the lowest idle power, and the option...
    on Oct 9, 2011

  • Forum Post: Re: shutting down half of TAS5613

    Anthony Smith
    Load for model A is 50W RMS, Load for model B is 100W RMS supply between 28V and 22V Both loads are through 100V line step up transformers, primaries are 12VRMS. The transformers are DC protected using 2200u caps bypassed by 10R resistors to prevent large currents on clipping. Mode is BD, but...
    on Oct 9, 2011

  • Forum Post: TAS5710 asserts FAULT when exiting shutdown

    Paulo Marques
    I work for a Portuguese company that is building a device with a couple of small speakers that should need 2 x 3W of output power from the amplifier. The nominal power supply should be around 12V, but we expect some fluctuation on the input voltage, so having a closed-loop amplifier would be a plus....
    on Oct 11, 2011

  • Forum Post: TAS5710 output shutting down without speaker load

    Gianluca Ventura
    Hi George I have the same problem with our Italian customer, The load is 4Ohm the Lbtl is 15uH and the Cg = 1,8 uF as the TI application note sloa119a suggest at page 2. The customers configuration is BTL in BD mode. With this configuration the output of TAS5710 without speaker load goes in shutdown...
    on Nov 4, 2011

  • Forum Post: TPA2026D2

    Hongwei Kong
    what is the input impedance of TPA2026d2? Can I chain the input of TPA2026 together with another amplifier input (also differential), with DC blocking cap to separate them of course. I think I can but the TPA2026 data sheet does not have input impedance specified.
    on Mar 12, 2012

  • Forum Post: LM4950 Power Supply Bypassing

    David Tiefenbrunn
    Hi, I noticed in the data sheet that it specifically requires a 1uF tantalum capacitor to bypass the power supply pin. I'm looking ofr suggestions as an alternative, since Tantalum caps are getting difficult to find & expensive. It also states NOT to use a ceramic capacitor. On most...
    on Mar 16, 2012

  • Forum Post: TAS5631DKD2EVM and Input-USB Board 2 first test

    Christian Ngamy
    Hello, I'm student. My School bought a TAS5631DKD2EVM with Input-USB Board 2 and it was given to me as project to understand how it works and make a documentation of them together in french, but I don't really understand how it works. I tried to do a first test with an oscillator instead...
    on Mar 20, 2012

  • Forum Post: comparing OP amp TLV2461 to LME49710TI

    Duane Kinjerski
    Can anyone help me with this question? I Modified a guitar pedal using a TI OP amp TLV2461 and had good results. I am considering using another TI OP amp, LME49710TI. Are the gain characteristics the same? I need the input to output signal strength/volume to remain the same. Can I use a feedback circuit...
    on Mar 20, 2012

  • Forum Post: Re: Stereo Audio Volume control PGA2310

    Luis Chioye
    Hello Lakshmi, As mentioned by d2, when using power supplies of +/-12V, the input and output signal range will be limited to +/-10.5V. The datasheet provides a few specifications of THD+N for different amplitude signals. In the case where the user amplifies a signal close to the swing limit of +/...
    on Mar 26, 2012

  • Forum Post: differential op amps

    WAYNE J MASTEL
    I'm wondering if there's an upgrade for the OPA1632 differential op amp. Atom
    on Mar 29, 2012
12

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use