Datasheet > TPA2028D1_17

TPA2028D1_17

更新时间： 2024-12-01 02:58:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
35页	1735K
描述
3-W Mono Class-D Audio Amplifier With Fast Gain Ramp SmartGain AGC/DRC

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TPA2028D1_17 数据手册

TPA2028D1

www.ti.com

SLOS660 –JANUARY 2010

3-W Mono Class-D Audio Amplifier with Fast Gain Ramp SmartGain™ AGC/DRC

Check for Samples: TPA2028D1

FEATURES

DESCRIPTION

•

Fast AGC Start-up Time: 5 ms

The TPA2028D1 is a mono, filter-free Class-D audio

power amplifier with volume control, dynamic range

compression (DRC) and automatic gain control

(AGC). It is available in a 1,63 mm x 1,63 mm wafer

chip-scale package (WCSP).

•

Pin-out Compatible with TPA2018D1

Filter-Free Class-D Architecture

3 W Into 4 Ω at 5 V (10% THD+N)

880 mW 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

The DRC/AGC function in the TPA2028D1 is

programmable via

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 –28 dB to +30 dB in 1-dB steps. The

TPA2028D1 is capable of driving 3 W at 5 V into 4

Ω load or 880 mW at 3.6 V into 8 Ω load. The device

features hardware and software shutdown controls

and also provides thermal and short-circuit protection.

The TPA2028D1 has faster AGC gain ramp during

start-up than TPA2018D1.

Selectable Gain from –28 dB to 30 dB in 1-dB

Steps (when compression is used)

•

Selectable Attack, Release and Hold Times

4 Selectable Compression Ratios

Low Supply Current: 1.8 mA

Low Shutdown Current: 0.2 mA

High PSRR: 80 dB

AGC Enable/Disable Function

Limiter Enable/Disable Function

Short-Circuit and Thermal Protection

Space-Saving Package

In addition to these features, a fast start-up time and

small package size make the TPA2028D1 an ideal

choice for cellular handsets, PDAs and other portable

applications.

–

1,63 mm × 1,63 mm Nano-Free™ WCSP

(YZF)

SIMPLIFIED APPLICATION DIAGRAM

To Battery

APPLICATIONS

10 mF

PVDD

•

Wireless or Cellular Handsets and PDAs

Portable Navigation Devices

Portable DVD Player

Notebook PCs

Portable Radio

Portable Games

TPA2028D1

1 mF

(Optional)

Analog

Baseband

OUT+

OUT-

IN-

IN+

CODEC

Educational Toys

USB Speakers

I C Clock

SCL

Digital

I C Data

SDA

BaseBand

Master Enable

PGND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Fast Gain Ramp SmartGain, Nano-Free are trademarks of Texas Instruments.

I²C is a trademark of NXP Semiconductors.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...35

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与TPA2028D1_17相关器件

型号	品牌	获取价格	描述	数据表
TPA2028D1YZFR	TI	获取价格	3-W Mono Class-D Audio Amplifier with Fast Ga
TPA2028D1YZFT	TI	获取价格	3-W Mono Class-D Audio Amplifier with Fast Ga
TPA2029D1	TI	获取价格	3-W Mono Class-D Audio Amplifier With SmartGain? AGC/DRC
TPA2029D1YZFR	TI	获取价格	3-W Mono Class-D Audio Amplifier With SmartGain? AGC/DRC
TPA2029D1YZFT	TI	获取价格	3-W Mono Class-D Audio Amplifier With SmartGain? AGC/DRC
TPA2029NND03-HF	COMCHIP	获取价格	General Purpose Transistor
TPA2029NND03Q-HF	COMCHIP	获取价格	General Purpose Transistor
TPA2029NND03R-HF	COMCHIP	获取价格	General Purpose Transistor
TPA2029NND03S-HF	COMCHIP	获取价格	General Purpose Transistor
TPA2031D1	TI	获取价格	2.5-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER

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