TPA2001D1
- Modulation Scheme Optimized to Operate Without a Filter
- TSSOP Package Options
- 1 W Into an 8-
Speaker (THD+N<1%) - <0.2% THD+N at 1 W, 1 kHz, Into an 8- Load
- Extremely Efficient Third Generation 5-V Class-D Technology:
- Low-Supply Current (No Filter) ...4 mA
- Low-Supply Current (Filter) . . . 7.5 mA
- Low-Shutdown Current . . . 0.05 µA
- Low-Noise Floor ...40 µVRMS (No-Weighting Filter)
- Maximum Efficiency Into 8 , 75 – 85%
- 4 Internal Gain Settings ...6 – 23.5 dB
- PSRR . . . –77 dB
- Integrated Depop Circuitry
- Short-Circuit Protection (Short to Battery, Ground, and Load)
The TPA2001D1 is a 1-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 8- impedance. The amplifier uses TI’s third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at the system level). These features make the device ideal for use in devices where high-efficiency is needed to extend battery run time.
The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs, and can be used as summing nodes.
The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up, and when cycling SHUTDOWN\.
The TPA2001D1 is available in the 16-pin TSSOP package that drives 1 W of continuous output power into an 8- load. TPA2001D1 operates over an ambient temperature range of –40°C to 85°C.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | 1-W Filterless Mono Class-D Audio Power Amplifier 数据表 (Rev. D) | 2002-12-9 | |||
| 应用手册 | Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) | 2019-8-26 | ||||
| 应用手册 | AN-1849 An Audio Amplifier Power Supply Design (Rev. C) | 2019-6-27 | ||||
| 应用手册 | AN-1737 Managing EMI in Class D Audio Applications (Rev. A) | 2013-5-1 | ||||
| 应用手册 | Measuring Class-D Amplifiers for Audio Speaker Overstress Testing | 2005-10-28 | ||||
| 用户指南 | TPA2001D1EVM - User Guide (Rev. B) | 2001-3-30 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |