TPA2026D2YZHR中文资料德州仪器数据手册PDF规格书

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.