TPA2026D2开发板套件编程器的评估板-音频放大器规格书PDF中文资料

TPA2026D2属于开发板套件编程器的评估板-音频放大器。由德州仪器制造生产的TPA2026D2评估板 - 音频放大器音频放大器评估板是带有元器件的电路，用于提供特定集成电路或器件的工作实例。该产品族中的电路板提供了模拟放大器实例。放大器类型包括 AB 类、D 类、G 类、H 类和 K 类，输出为耳机、1 声道（单声道）、2 声道（立体声）、3 声道、4 声道、6 声道和 8 声道。

1 Features

1• Fast AGC Start-Up Time: 5 ms

• Pinout 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 or Without I2C

• Programmable DRC and 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: 0.2 μA

• High PSRR: 80 dB

• AGC Enable or Disable Function

• Limiter Enable or Disable Function

• Short-Circuit and Thermal Protection

• Space-Saving Package

– 2.2 mm × 2.2 mm Nano-Free™ DSBGA (YZH)

2 Applications

• Wireless or Cellular Handsets and PDAs

• Portable Navigation Devices

• Portable DVD Players

• Notebook PCs

• Portable Radios

• Portable Games

• Educational Toys

• USB Speakers

3 Description

The TPA2026D2 device 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

DSBGA package.

The DRC and AGC function in the TPA2026D2 is

programmable through a digital I2C interface. The

DRC and AGC function can be configured to

automatically prevent distortion of the audio signal

and enhance quiet passages that are normally not

heard. The DRC and 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

TPA2016D2.

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.