, 500-mW/Channel Speaker Drive CapabilityI2C, I2S are trademarks of NXP Semiconductors.
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The TLV320AIC31 is a low-power stereo audio codec with a stereo headphone amplifier, as well as multiple inputs and outputs, programmable in single-ended or fully-differential configurations. Extensive register-based power control is included, enabling stereo 48-kHz digital-to-analog converter (DAC) playback as low as 14 mW from a 3.3-V analog supply, making it ideal for portable, battery-powered audio and telephony applications.
The record path of the TLV320AIC31 contains integrated microphone bias, a digitally-controlled stereo microphone pre-amp, and automatic gain control (AGC), with mix/mux capability among the multiple analog inputs. The playback path includes mix/mux capability from the stereo DAC and selected inputs, through programmable volume controls to the various outputs.
The TLV320AIC31 contains four high-power output drivers as well as two fully differential output drivers. The high-power output drivers are capable of driving a variety of load configurations, including up to four channels of single-ended, 16- speakers in a BTL configuration at 500 mW per channel.
The stereo audio DAC supports sampling rates from 8 kHz to 96 kHz and includes programmable digital filtering in the DAC path for 3D, bass/treble/midrange effects, speaker equalization, and de-emphasis for 32-kHz, 44.1-kHz, and 48-kHz rates. The stereo-audio analog-to-digital converter (ADC) supports sampling rates from 8 kHz to 96 kHz and is preceded by programmable gain amplifiers providing up to +59.5 dB analog gain for low-level microphone inputs.
The serial control bus supports the I2C protocol, while the serial-audio data bus is programmable for I2S, left-/right-justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, with special attention paid to the most popular cases of 12-MHz, 13-MHz, 16-MHz, 19.2-MHz, and 19.68-MHz system clocks.
The TLV320AIC31 operates from an analog supply of 2.7 V to 3.6 V, a digital core supply of 1.65 V to 1.95 V, and a digital I/O supply of 1.1 V to 3.6 V. The device is available in a 5 × 5 mm, 32-lead QFN package.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha |
|---|---|---|---|---|---|
| * | Hoja de datos | Low Power Stereo Audio Codec for Portable Audio/Telephony datasheet (Rev. C) | 12/11/2008 | ||
| Nota sobre la aplicación | Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) | 31/12/2019 | |||
| Nota sobre la aplicación | Audio Serial Interface Configurations for Audio Codecs (Rev. A) | 27/06/2019 | |||
| Nota sobre la aplicación | Interfacing an I2S Device to an MSP430 Device (Rev. A) | 22/03/2010 | |||
| Nota sobre la aplicación | Configuring I2S to Generate BCLK from Codec Devices & WCLK from McBSP Port | 8/07/2009 | |||
| Nota sobre la aplicación | Using TLV320AIC3x Digital Audio Data Serial Interface w/TDM Support | 5/07/2006 | |||
| Nota sobre la aplicación | TLV320AIC3x WinCE 5.0 Drivers | 27/09/2005 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
The Linux driver supports the TLV320AIC3x family of low-power stereo CODECs, and communication through the I2C bus and interfaces with the Linux Dynamic Audio Power Management for Portable Devices (DAPM) class.
Linux main line statusAvailable in Linux main line: Yes
Available through git.ti.com: N/A
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COEFFICIENT-CALC (TIBQ) calculates the coefficients for the digital filter biquad transfer function implemented in TI audio codecs. The characteristics of the digital filter are adjusted by selecting a filter type and moving a control point within a window that shows the transfer function gain and (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
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