TPA6139A2
- DirectPath™
- Eliminates Pops and Clicks
- Eliminates Output DC-Blocking Capacitors
- 3-V to 3.6-V Supply Voltage
- Low Noise and THD
- SNR > 105 dB at –1x Gain
- Typical Vn < 15 µVms 20 to 20 kHz at –1x
Gain - THD+N < 0.003% at 10-kΩ Load and –1x Gain
- 25 mW into 32-Ω Load
- 2-Vrms Output Voltage into 600-Ω Load
- Single-Ended Input and Output
- Programmable Gain Select Reduces Component
Count- 13x Gain Values
- Active Mute With More Than 80-dB Attenuation
- Short-Circuit and Thermal Protection
- ±8-kV HBM ESD Protected Outputs
The TPA6139A2 is a 25-mW, pop-free stereo headphone driver designed to reduce component count, board space and cost. It is ideal for single-supply electronics where size and cost are critical design parameters.
The TPA6139A2 device does not require a power supply greater than 3.3 V to generate its 25 mW, nor does it require a split rail power supply.
The TPA6139A2 device was designed using TI’s patented DirectPath™ technology, which integrates a charge pump to generate a negative supply rail that provides a clean, pop-free ground biased output. The TPA6139A2 is capable of driving 25 mW into a 32-Ω load and 2 Vrms into a 600-Ω load. DirectPath also allows the removal of the costly output DC-blocking capacitors.
The device has fixed gain single-ended inputs with a gain select pin. Using a single resistor on this pin, the designer can choose from 13 internal programmable gain settings to match the line driver with the CODEC output level. It also reduces the component count and board space.
Headphone outputs have &plusm;8-kV HBM ESD protection enabling a simple ESD protection circuit. The TPA6139A2 has built-in active mute control with more that 80-dB attenuation for pop-free mute ON and OFF control.
The TPA6139A2 device is available in a 14-pin TSSOP and a 16-pin QFN. For a pin-compatible, 2-Vrms line driver see DRV612.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPA6139A2 DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain datasheet (Rev. C) | PDF | HTML | 2016年 4月 27日 |
| Application note | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019年 8月 26日 | ||
| Application note | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019年 6月 27日 | ||
| EVM User's guide | TPA6139A2 EVM User's Guide | 2010年 11月 10日 |
設計與開發
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TPA6139A2EVM — TPA6139A2EVM 評估模組
The TPA6139A2EVM customer evaluation module (EVM) demonstrates the capabilities and operation of the TPA6139A2PW integrated circuit from Texas Instruments. The TPA6139A2PW is a 25mW Pop-Free stereo Head Phone driver designed to reduce component count, board space and cost. It is ideal for single (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
| 封裝 | 引腳 | 下載 |
|---|---|---|
| TSSOP (PW) | 14 | 檢視選項 |
| VQFN (RGT) | 16 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
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。