The CXAR41178 is ideally designed to deliver the high output voltage swing for ceramic/piezoelectric speakers. The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry.
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[ CXAR41178 ]"
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产品概述 返回TOP
CXAR41178为一款非立体声的G类功率放大器，由内部集成的负电荷泵作为电源供电。当电荷泵输出电压大于5V时，可提供高达500mA的峰值输出电流，从而保证14VP-P的输出。CXAR41178通过G类输出级提供良好的性能，相较于AB类元件具有更高的效率，不存在与D类放大器相关的EMI干扰。CXAR41178针对陶瓷型/压电扬声器提供高电压输出摆幅的理想设计。该设备利用全差动输入和和全差动输出，内置shutdown控制电路，综合Click和pop噪声抑制电路和软启动电路。CXAR41178采用TQFN-28 封装。The CXAR41178 is a mono Class G power amplifier with an integrated inverting charge-pump power supply. The charge pump can supply up to 500mA of peak out-put current over at 5V, guaranteeing an output of 14VP-P. The CXAR41178 offers good performance through the class G output stage, which provides efficiency levels greater than Class AB devices without the EMI penalties commonly associated with Class D amplifiers. The CXAR41178 is ideally designed to deliver the high output voltage swing for ceramic/piezoelectric speakers. The device utilizes fully differential inputs and outputs, comprehensive click-and-pop suppression, shutdown control, and soft-start circuitry. The ECXAR41178is available in 28-pin TQFN (4mm×4mm) package.
产品特点 返回TOP
• 工作电压操作范围2.7V到5.0V
• 内部集成电荷泵电源
• 14V输入电压摆幅
• 内含Click和pop噪声抑制电路
• 采用TQFN-28 封装
• 符合RoHS规范，Pb-Free及 Halogen-Free
2.7V-5.0V Operation
Integrated Charge-Pump Power Supply
14VP-P Voltage Swing into Piezoelectric Speaker
Click-and-Pop Suppression
Available in TQFN-28 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
应用范围 返回TOP
• 移动电话/智能机
• 个人媒体播放器
• 平板电脑
• 掌上游戏机
• 笔记本电脑
Mobile Phones/ Smartphones
Personal Media Players
Tablet PC
Handheld Gaming
Notebook Computers
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
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电路原理图 返回TOP
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音频放大器 > G类 |
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Part Number |
remark |
Vin (V) |
Speaker (Ω) |
Headphone |
No of Speaker Channel |
THD +N @ 1KHz (%) |
IQ (mA)(Typ) |
PSRR (dB) |
Package |
|
2.4W, Mono Class G Audio Power Amplifier with AGC |
2.7 ~ 5.0 |
8 |
N/A |
1 |
0.1 |
4.6 |
64 |
TQFN-28 |
|
|
14VP-P, Mono, Class G Ceramic Speaker Driver |
2.7 ~ 5.5 |
p to 4uF |
N/A |
1 |
0.1 |
4.6 |
64 |
TQFN-28 |
|
|
Advanced Stereo Headphone Amplifier |
2.7 ~ 5.5 |
N/A |
Yes |
N/A |
0.03 |
3.8 |
80 |
TDFN-12 WCSP-12 |
|
