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TPA2006D1

更新时间： 2024-11-10 03:58:47
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器输入元件LTE
页数 文件大小 规格书
23页 915K
描述
1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V COMPATIBLE INPUT THRESHOLDS

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TPA2006D1 数据手册

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TPA2006D1  
www.ti.com  
SLOS498–SEPTEMBER 2006  
1.45-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER WITH 1.8-V  
COMPATIBLE INPUT THRESHOLDS  
FEATURES  
APPLICATIONS  
•
Ideal for Wireless or Cellular Handsets and  
PDAs  
•
Maximum Battery Life and Minimum Heat  
– Efficiency With an 8-Ω Speaker:  
• 88% at 400 mW  
DESCRIPTION  
• 80% at 100 mW  
The TPA2006D1 is  
a 1.45-W high efficiency  
– 2.8-mA Quiescent Current  
– 0.5-µA Shutdown Current  
filter-free class-D audio power amplifier in a 3 mm ×  
3 mm QFN package that requires only three external  
components. The SHUTDOWN pin is fully  
compatible with 1.8-V logic GPIO, such as are used  
on low power cellular chipsets.  
•
•
Shutdown Pin has 1.8-V Compatible  
Thresholds  
Only Three External Components  
Features like 88% efficiency, –75-dB PSRR,  
improved RF-rectification immunity, and very small  
total PCB footprint make the TPA2006D1 ideal for  
cellular handsets. A fast start-up time of 1 ms with  
minimal pop makes the TPA2006D1 ideal for PDA  
applications.  
•
Optimized PWM Output Stage Eliminates  
LC Output Filter  
•
Internally Generated 250-kHz Switching  
Frequency Eliminates Capacitor and  
Resistor  
•
•
•
Improved PSRR (–75 dB) and Wide  
Supply Voltage (2.5 V to 5.5 V) Eliminates  
Need for a Voltage Regulator  
In cellular handsets, the earpiece, speaker phone,  
and melody ringer can each be driven by the  
TPA2006D1. The TPA2006D1 allows independent  
gain while summing signals from separate sources,  
and has a low 36 µV noise floor, A-weighted.  
Fully Differential Design Reduces RF  
Rectification and Eliminates Bypass  
Capacitor  
Improved CMRR Eliminates Two Input  
Coupling Capacitors  
•
Space Saving 3 mm x 3 mm QFN Package  
(DRB)  
APPLICATION CIRCUIT  
To Battery  
Internal  
V
DD  
8-PIN QFN (DRB) PACKAGE  
(TOP VIEW)  
Oscillator  
C
S
R
R
I
+
-
IN+  
IN-  
V
O+  
1
2
3
4
8
7
6
5
PWM  
H-  
SHUTDOWN  
V
O−  
+
_
Differential  
Input  
Bridge  
NC  
IN+  
IN−  
GND  
V
O-  
I
V
DD  
V
O+  
GND  
Bias  
SHUTDOWN  
Circuitry  
NC − No internal connection  
TPA2006D1  
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.  
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 © 2006, Texas Instruments Incorporated  
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TPA2006D1 替代型号

型号 品牌 替代类型 描述 数据表
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