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TPA2028D1YZFT

更新时间： 2024-11-20 07:04:43
品牌 Logo 应用领域
德州仪器 - TI 音频放大器
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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TPA2028D1YZFT 数据手册

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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  
1
FEATURES  
DESCRIPTION  
23  
•
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  
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 –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)  
•
•
•
•
•
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•
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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  
•
•
•
•
•
•
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Wireless or Cellular Handsets and PDAs  
Portable Navigation Devices  
Portable DVD Player  
Notebook PCs  
Portable Radio  
Portable Games  
TPA2028D1  
C
1 mF  
IN  
(Optional)  
Analog  
Baseband  
or  
OUT+  
OUT-  
IN-  
IN+  
CODEC  
Educational Toys  
USB Speakers  
2
I C Clock  
SCL  
2
Digital  
I C Data  
SDA  
EN  
BaseBand  
Master Enable  
PGND  
1
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.  
2
3
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.  
Copyright © 2010, Texas Instruments Incorporated  
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TPA2028D1YZFT 替代型号

型号 品牌 替代类型 描述 数据表
TPA2028D1YZFR TI

完全替代

 3-W Mono Class-D Audio Amplifier with Fast Ga
TPA2011D1YFFT TI

类似代替

 3.2W Mono Filter-Free Class-D Audio Power Amplifier With Auto-Recovering Short-Circuit Pro
TPA2011D1YFFR TI

类似代替

 3.2W Mono Filter-Free Class-D Audio Power Amplifier With Auto-Recovering Short-Circuit Pro

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