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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Low Power Stereo Audio DAC for Portable Audio/Telephony datasheet (Rev. B) | 2008年 11月 13日 | |
| * | Errata | TLV320DAC32 Errata | 2006年 10月 18日 | |
| Application note | Out-of-Band Noise Measurement Issues for Audio Devices (Rev. A) | 2019年 12月 31日 | ||
| Application note | Interfacing an I2S Device to an MSP430 Device (Rev. A) | 2010年 3月 22日 |
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。
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PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |
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