TPA6120A2
- SNR of 128dB A-Weighted.
- THD of 112.5dB
- Current-Feedback Architecture
- Output Voltage Noise of 0.9µVrms at
Gain = 1V/V (16Ω Load) - Power Supply Range: ±5V to ±15V
- 1300V/µs Slew Rate
- Can be configured for Single Ended or Differential
Inputs - Independent Power Supplies for Low Crosstalk
In applications requiring a high-power output, very high fidelity headphone amplifier, the TPA6120A2 replaces a costly discrete design and allows music, not the amplifier, to be heard. The TPA6120A2’s current-feedback AB amplifier architecture delivers high bandwidth, extremely low noise, and up to 128dB of dynamic range.
Three key features make current-feedback amplifiers outstanding for audio. The first feature is the high slew rate that prevents odd order distortion anomalies. The second feature is current-on-demand at the output that enables the amplifier to respond quickly and linearly when necessary without risk of output distortion. When large amounts of output power are suddenly needed, the amplifier can respond extremely quickly without raising the noise floor of the system and degrading the signal-to-noise ratio. The third feature is the gain-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.
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 | TPA6120A2 High Fidelity Headphone Amplifier datasheet (Rev. B) | PDF | HTML | 2015/2/4 | ||
| 應用說明 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019/8/26 | ||||
| 應用說明 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019/6/27 | ||||
| 使用指南 | TPA6120A2EVM - User Guide | 2004/5/6 |
設計與開發
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TPA6120A2EVM — TPA6120A2 評估模組 (EVM)
The TPA6120A2 is a Hi-Fi stereo headphone amplifier capable of delivering 1.5 W of continuous RMS power per channel into 32-Ohm speakers with less than 0.0003% THD+N.
TPA6120A2RGYEVM — 採用 QFN 封裝的 TPA6120A2RGYEVM 立體聲道耳機放大器評估模組
TPA6120A2 是一款性能卓越的 Hi-Fi 立體聲耳機放大器，能夠在小型 QFP 封裝中，為每個通道的 32 歐姆揚聲器提供 1.5W 的連續 RMS 功率。
TIDA-00385 — 適用於可攜式和智慧型手機應用的高保真音訊耳機播放參考設計
由於使用高保真耳機是可攜式音訊播放的日益增長趨勢，因此需要更高性能的 DAC 和耳機放大器。此系統使用 PCM5242 音訊 DAC，將 USB、SPDIF 或光學來源的數位音訊轉換為類比音訊。高性能 TPA6120A2 耳機放大器搭配差動 DAC，可實現令人驚嘆的音樂清晰度與細節，以及領先業界的雜訊性能，這對於低雜訊耳機播放至關重要。電源供應架構專為以 3.3V 來源運作而設計，可提升彈性，並可整合至現有產品和系統中。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DWP) | 20 | Ultra Librarian |
| VQFN (RGY) | 14 | 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。