TPA2026D2 - 具有动态范围的 3.2W/通道立体声 SmartGainTM D 类音频放大器

TPA2026D2是TI德州仪器公司的一款扬声器放大器（AB类/D类）产品，TPA2026D2是具有动态范围的 3.2W/通道立体声 SmartGainTM D 类音频放大器，本站介绍了TPA2026D2的封装应用图解、特点和优点、功能等，并给出了与TPA2026D2相关的TI元器件型号供参考。

TPA2026D2 - 具有动态范围的 3.2W/通道立体声 SmartGainTM D 类音频放大器 - 扬声器放大器（AB类/D类） - 低功耗放大器 - 德州仪器

产品描述

The TPA2026D2 is a stereo, filter-free Class-D audio power amplifier with volume control, dynamic range compression (DRC) and automatic gain control (AGC). It is available in a 2.2 mm × 2.2 mm WCSP package.

The DRC/AGC function in the TPA2026D2 is programmable via a digital I2C interface. The DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard. The DRC/AGC can also be configured to protect the speaker from damage at high power levels and compress the dynamic range of music to fit within the dynamic range of the speaker. The gain can be selected from 0 dB to +30 dB in 1-dB steps. The TPA2026D2 is capable of driving 3.2 W/Ch at 5 V into an 4-Ω load or 750 mW/Ch at 3.6 V into an 8-Ω load. The device features independent software shutdown controls for each channel and also provides thermal and short circuit protection. The TPA2026D2 has faster AGC gain ramp during start-up than TPA2026D2.

In addition to these features, a fast start-up time and small package size make the TPA2026D2 an ideal choice for cellular handsets, PDAs, and other portable applications.

产品特性

Fast AGC Start-up Time: 5 ms
Pin-Out Compatible with TPA2016D2
Filter-Free Class-D Architecture
3.2 W/Ch Into 4 Ω at 5 V (10% THD+N)
750 mW/Ch Into 8 Ω at 3.6 V (10% THD+N)
Power Supply Range: 2.5 V to 5.5 V
Flexible Operation With/Without I2C
Programmable DRC/AGC Parameters
Digital I2C Volume Control
Selectable Gain from 0 dB to 30 dB in 1-dB Steps
Selectable Attack, Release and Hold Times
4 Selectable Compression Ratios
Low Supply Current: 3.5 mA
Low Shutdown Current: 0.2µA
High PSRR: 80 dB
AGC Enable/Disable Function
Limiter Enable/Disable Function
Short-Circuit and Thermal Protection
Space-Saving Package
- 2,2 mm × 2,2 mm Nano-Free™ WCSP (YZH)
APPLICATIONS
- Wireless or Cellular Handsets and PDAs
- Portable Navigation Devices
- Portable DVD Player
- Notebook PCs
- Portable Radio
- Portable Games
- Educational Toys
- USB Speakers

SmartGain, Nano-Free are trademarks of Texas Instruments. All other trademarks are the property of their respective owners.

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