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MA12040P

更新时间： 2024-11-06 14:56:19
品牌 Logo 应用领域
英飞凌 - INFINEON 功效
页数 文件大小 规格书
88页 1789K
描述
2x40W 超高功效全集成式音频功放 IC，带模拟输入

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中文翻译

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MA12040P 数据手册

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MA12040P  
Filterless and High-Efficiency +4V to +18V  
Audio Amplifier with I2S Digital Input  
Description  
Features  
The MA12040P is a super-efficient audio power  
amplifier based on proprietary multi-level switching  
technology. It supports a 4-18V supply voltage range,  
allowing it to be used in many different applications.  
•
Proprietary Multi-level Switching Technology  
◦
3-level and 5-level modulation  
◦
◦
Low EMI emission  
Filterless amplification  
Multi-level switching enables very low power loss  
during operation. In addition, it allows the amplifier to  
be used in filterless configurations at full rated power  
in a wide range of audio products.  
◦
Digital Power Management Algorithm  
•
•
High Power Efficiency (PMP4)  
◦
<110mW Idle power dissipation (18V PVDD,  
all channels switching)  
The MA12040P features an embedded digital power  
management scheme. The power management  
algorithm dynamically adjusts switching frequency and  
modulation to optimize power loss and EMI across the  
output power range.  
◦
◦
>77% Efficiency at 1W power (1kHz sine, 8Ω)  
>92% Efficiency at Full Power (1kHz sine, 8Ω)  
Audio Performance (PMP2)  
◦
>98dB DNR (A-w, rel. to 1% THD+N power  
level)  
An integrated digital-to-analog converter enables  
digital I2S audio stream input. It supports sample rates  
from 44.1 kHz to 192 kHz.  
◦
◦
135µV output integrated noise (A-w)  
0.006% THD+N at high output levels  
•
•
4th Order Feedback Error Control  
Highly flexible output stage configurations are offered,  
ranging from four single-ended outputs to a single  
parallel-BTL output.  
◦
◦
High suppression of supply disturbance  
HD audio quality  
Supply Voltages: +4V to +18V (PVDD) and +5V  
(A/DVDD)  
The MA12040P features protection against DC, short-  
circuits,  
situations.  
over-temperature  
and  
under-voltage  
•
•
Volume Control and Limiter  
2×40W peak output power (18V PVDD, RL = 4Ω,  
10% THD+N level)  
Flexible “Power Mode Profiles” allow the user to utilize  
the multi-level switching technique for very low power  
loss or very high audio performance.  
•
2×20W continuous output power (RL = 8Ω at 18V,  
PMP4, 10% THD+N level, without heatsink)  
•
•
2.0, 2.1, 4.0, 1.0 Output Stage Configurations  
Protection  
Device communication and programming is controlled  
through an I2C interface as well as dedicated control  
pins.  
◦
◦
◦
◦
◦
◦
Under-voltage-lockout  
Over-temperature warning/error  
Short-circuit/overload protection  
Power stage pin-to-pin short-circuit  
Error-reporting through serial interface (I2C)  
DC protection  
Applications  
•
•
•
•
•
Battery Operated Speakers  
Wireless and Docking Speakers  
Soundbars  
•
•
I2C control (four selectable addresses)  
Heatsink free operation with EPAD-down package  
Multiroom Systems  
Package  
Home Theater Systems  
•
64-pin QFN Package with exposed thermal pad  
(EPAD)  
•
Lead-free Soldering  
Datasheet  
www.infineon.com  
Please read the Important Notice and Warnings at the end of this document  
page 1 of 88  
V 1.0  
2018-07-17  
1234567...88

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