TLV320DAC32
- Stereo Audio DAC
- 95-dBA Signal-to-Noise Ratio
- 16/20/24/32-Bit Data
- Supports Rates From 8 kHz to 96 kHz
- 3D/Bass/Treble/EQ/De-emphasis Effects
- Two Audio Input Pins
- Allows Analog Bypass Path
- Four Audio Output Drivers
- Stereo 8-
, 500-mW/Channel Speaker
Drive Capability - Stereo Fully Differential or Single-Ended Headphone Drivers
- Stereo 8-
- Low Power: 18-mW Stereo 48-kHz Playback With 3.3-V Analog Supply
- Programmable Input/Output Analog Gains
- Programmable Microphone Bias Level
- Headphone Jack Detection
- Programmable PLL for Flexible Clock Generation
- I2C Control Bus
- Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes
- Extensive Modular Power Control
- Internal Selectable LDO Allows Operation From Single 3.3-V Supply
- Power Supplies:
- Analog: 2.7 V-3.6 V.
- Digital Core: 1.525 V-1.95 V
- Digital I/O: 1.1 V-3.6 V
- Package: 5 × 5 mm 32-QFN
The 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.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Low Power Stereo Audio DAC for Portable Audio/Telephony datasheet (Rev. B) | 2008/11/13 | |||
| * | 勘誤表 | TLV320DAC32 Errata | 2006/10/18 | |||
| 應用說明 | Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) | 2019/12/31 | ||||
| 應用說明 | Interfacing an I2S Device to an MSP430 Device (Rev. A) | 2010/3/22 |
設計與開發
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TLV320DAC32EVM — TLV320DAC32 評估模組 (EVM)
TLV320DAC32EVM 是採用德州儀器模組化 EVM 外型尺寸製造的 EVM。模組化外型尺寸可直接評估 TLV320AIC32 單聲道輸入/立體聲輸出音訊編解碼器。使用 I²S 匯流排將音訊資料傳輸至電路板。模組化 EVM 也可相容於德州儀器的 5-6KINTERFACE 和 HPA-MCUINTERFACE 電路板。第三方電路板，例如 SoftBaugh, Inc. 的 HPA449 展示板和 Hyperception, Inc. 的 Speedy33
TLV320DAC32EVM-PDK — TLV320DAC32 評估模組 (EVM) 和 USB 主機板
TLV320DAC32EVM-PDK 是用於測試和評估 TLV320DAC32EVM 的完整評估/展示套件。該套件包含 TLV320DAC32EVM 和 USB 主機板，可透過 PC 的 USB 連接埠供電。TLV320DAC32M-PDK 還隨附了評估軟體，可和執行 Microsoft Windows 作業系統的個人電腦搭配使用。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。