TI 公司针对TSC2117带D类放大器和音频编解码器的解决方案（英文版）-技术方案

精品文档-下载后可编辑TI公司针对TSC2117带D类放大器和音频编解码器的解决方案（英文版）-技术方案TI公司的TSC2117是带立体声D类扬声器放大器和嵌入了miniDSP的音频编解码器，并具有智能四线触摸屏控制器和立体声音频DAC,单声道ADC和SARADC.TSC2117支持16位的立体声播放和单声道录音，集成了多个模拟接口如麦克风接口，耳机驱动器和扬声器驱动器，用于数字音频处理的两个可编程miniDSP.TSC2117工作电压2.7V03.6V,能向D类BTL8欧姆提供立体声1.29W功率，可用在。手提游戏机，移动互联网设备厂和自适应滤波器。本文介绍了TSC2117的主要特性，方框图，典型电路配置图以及USB-MODEVM板的电路图和材料清单。

TSC2117:Low-PowerAudioCodecWithEmbeddedminiDSP,StereoClass-DSpeakerAmplifier,andSmartFour-WireTouch-ScreenController

TheTSC2117isalow-power,highlyintegrated,high-performancecodecandtouch-screencontrollerwhichfeaturesstereoclass-Dspeakeramplifiers,astereoaudioDAC,monoaudioADC,andaSARADC.

TheTSC2117supports16-bitstereoplaybackandmonauralrecordfunctionality.Thedeviceintegratesseveralanalogfeatures,suchasamicrophoneinterface,headphonedrivers,andspeakerdrivers.TheTSC2117hastwofullyprogrammableminiDSPsfordigitalaudioprocessing.Thedigitalaudiodataformatisprogrammabletoworkwithpopularaudiostandardprotocols（I2S,left/right-justified）inmaster,slave,DSP,andTDMmodes.Bassboost,treble,orEQaresupportedbythepreprogrammedmodesoftheprogrammabledigitalsignal-processingblock.Anon-chipPLLprovidedthehigh-speedclockneededbythedigitalsignal-processingblock.Thevolumelevelcanbecontrolledbyeitherapincontrolorbyregistercontrol.

TheTSC2117hasa12-bitconverterthatsupportsafour-wireresistivetouch-screencompletewithdrivers.AllfunctionscanbecontrolledbyanI2CorSPIinterface.Aprogrammablebeepgeneratorisincluded.Anon-chipprocessorisusedinthetouch-screenmodeandprovidesextensivefeaturesspecificallydesignedtoreducethehost-processorandinterface-busoverhead.TheTSC2117hasthreededicatedanaloginputsforsystemvoltagemeasurements,withanon-chiptemperaturesensorethatcanbereadbytheSARADC,andisavailaleina7-mm×7-mm48-pinQFNpackage.

TSC2117主要特性：

Low-Power13-mWStereo48-kHzPlayback

StereoAudioDACandMonauralADCSupport8-kHzto192-kHzSampleRates

Instruction-ProgrammableminiDSPAvailableforRecordandPlaybackPaths

BassBoost/Treble/EQWithuptoFiveBiquadsforRecordanduptoSixBiquadsforPlayback

Stereo1.29-WClass-DBTL8-SpeakerDriverWithDirectBatteryConnection

SmartFour-WireTouch-ScreenControllerWIthAutonomousTiming

Programmable-GainAmplifiers

MicrophoneBias

Hardware-ImplementedAGCUsedWithMicrophoneInputforAudioADCPath

DigitalMicrophoneInterface

DigitalMixingCapability

PinControlorRegisterControlforDigital-PlaybackVolume-ControlSettings

Programmable12-BitSARADC

Built-inCapabilityforTemperature,Battery,orAuxiliaryMeasurements

ProgrammableDRCforDigitalPlayback

Sine-WaveGeneratorforBeepGeneratorforTouch-PadPressAcknowledgement

IntegratedPLLUsedforProgrammableDigitalAudioProcessor

SPI,I2C,andI2SSerialInterfaces

SPI,I2CHaveRegisterAuto-Increment

FullPower-DownControl

PowerSupplies:

Analog:2.7V-3.6V

DigitalCore:1.65V-1.95V

DigitalI/O:1.1V-3.6V

Class-D:2.7V-5.5V（SLVDDandSRVDD≥AVDD）

7-mm×7-mm48-QFNPackage

TSC2117应用：

PortableGamingDevices

MobileInternetDevices

AdaptiveFilteringApplications图1.TSC2117功能方框图图2.TSC2117典型电路配置图

TSC2117EVM-K评估模块（EVM）和USB-MODEVM板

TheTSC2117EVM-Kevaluationmodule（EVM）featuresaTSC2117touchscreencontrollerwithstereoaudiocodec,amplifiersforspeakersandheadphonesandadigitalsignalprocessingmodule.TogetherwiththeUSB-MODEVMboard,theTSC2117ControlSoftwareandaPCrunningWindows?XPitisaplug-and-playsolutiontoevaluatethecapabilitiesoftheTSC2117.

USB-MODEVMSchematic

图3.USB-MODEVM电路图(1)图4.USB-MODEVM电路图(2)图5.USB-MODEVM电路图(3)

USB-MODEVM材料清单：

TI公司简介

德州仪器（TexasInstruments），简称TI，是的半导体公司，为现实世界的信号处理提供创新的数字信号处理及模拟器件技术。除半导体业务外，还提供包括教育产品和数字光源处理解决方案。TI总部位于美国得克萨斯州的达拉斯，并在25个多国家设有制造、设计或销售机构。

音频解码器介绍