, 500-mW/Channel Speaker Drive CapabilityThe TLV320DAC32 is a low power stereo audio DAC with and integrated power amplifier designed to drive stereo headphones or speakers. This device also has a pair of analog inputs which allow routing of external signals to the output amplifiers. The playback path includes a mix/mux capability from the stereo DAC and analog inputs, through programmable volume controls, to the headphone outputs. Extensive register-based power control is included, enabling stereo 96-kHz playback as low as 20mW from a 3.3-V analog supply, making it ideal for portable battery-powered audio and telephony applications.
The TLV320DAC32 contains four high-power output drivers. These drivers are capable of driving a variety of load configurations, including up to four channels of single-ended 16-Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a cap-less output configuraton. In addition, pairs of drivers can be used to drive 8-Ω 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 serial control bus uses 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 TLV320DAC32 operates from analog supplies of 2.7 V - 3.6 V, a digital core supply of 1.525 V - 1.95 V, and a digital I/O supply of 1.1 V - 3.6 V. An internal LDO regulator allows the device to internally generate the lower voltage power supply needed for digital core logic, thereby allowing full operation from a single 3.3-V supply voltage.
The TLV320DAC32 is a software-compatible subset of the existing TLV320AIC32 and TLV320AIC33 audio codecs, allowing simple transition from a system with record and playback to a system with playback only.
The device is available in a 5 x 5mm 32-lead QFN package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Low Power Stereo Audio DAC for Portable Audio/Telephony datasheet (Rev. B) | 13 Nov 2008 | |
| * | Errata | TLV320DAC32 Errata | 18 Oct 2006 | |
| Application note | Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) | 31 Dec 2019 | ||
| Application note | Interfacing an I2S Device to an MSP430 Device (Rev. A) | 22 Mar 2010 |
For additional terms or required resources, click any title below to view the detail page where available.
The TLV320DAC32EVM is an EVM manufactured in Texas Instruments modular EVM form factor. The modular form factor allows direct evaluation of the TLV320AIC32 mono-input/stereo-output audio codec. Audio data is communicated to the board using I²S bus. The modular EVM is also compatible with the (...)
The TLV320DAC32EVM-PDK is a complete evaluation/demonstration kit for the test and evaluation of theTLV320DAC32EVM. The kit, which includes the TLV320DAC32EVM and a USB-based motherboard, can obtain power from the PCs USB port. Also included with the TLV320DAC32M-PDK is the evaluation software for (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
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