CXAD4168是一款3-W（VDD=5.0V，RL=4Ω）的高效率无滤波器D类音频功率放大器，采用晶片级封装（WLCSP）。
CXAD4168具有“专业的防夹输出控制电路”，可减少由于输入信号电平过高或电池供电电压降低而导致的输出信号失真。具有高效率、-80dB PSRR、过电流保护和热保护功能
CXAD4168是手机的理想选择。输出功率
-3.0W（VDD=5.0V，RL=4Ω，THD+N=10%）
-1.8W（VDD=5.0V，RL=8Ω，THD+N=10%）
★控制终端可选择四种模式：防夹1、防夹2，防夹断开，断电
★低THD+N，低噪音低电磁干扰
★改进的PSRR（–80dB）和宽电源电压（2.5 V至5.0 V）消除了需要调压器
★过流及热保护功能
★Pop降噪功能
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[ CXAD4168 ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（PDF文档）
一.产品概述
CXAD4168 is a 3-W (VDD=5.0V, RL=4Ω) high efficiency filter-free class-D audio power amplifier in a wafer chip scale package (WLCSP). CXAD4168 has a “Professional Anti-Clip output control circuit” which reducing distortion of output signal due to either the over level input signal or power supply voltage down with battery. Features like high efficiency, −80dB PSRR, overcurrent protection and thermal protection function make the CXAD4168ideal for cellular handsets.
二.产品特点
★Output Power
- 3.0W (VDD=5.0V, RL =4Ω, THD+N=10%)
- 1.8W (VDD=5.0V, RL =8Ω, THD+N=10%)
★Four mode can be selected with CTRL terminal: Anti-Clip 1, Anti-Clip 2, Anti-Clip off, Power-Down
★Low THD+N and Low Noise
★Low EMI
★Improved PSRR (−80dB) and Wide Supply Voltage (2.5 V to 5.0V) Eliminates
★Need for a Voltage Regulator
★Over-current and Thermal Protection function
★Pop noise reduction function
★Available in space-saving package: 9-Bump WLCSP
三.应用范围
★Mobile phone, PDA
★MP3/4, PMP, GPS
★Portable electronic devices
四.技术规格书（产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
五.产品封装图
六.电路原理图
七.相关芯片选择指南
| D类音频功放电路(Class D Audio Amplifier) | ||||||
| Part No. | Features | Output | PSRR | VDD | Package | Applications |
| CXAD4167 | Mono Filter-Free Class D Audio Power Amplifier | 2.6 W | 75dB | 2.5~5.5V | MSOP8 DFN8 SOP8 | (5) (6) (7) (8) |
| CXAD4168 | Mono Non-clip Class D Audio Power Amplifier | 3.0 W | 80dB | 2.5~5V | CSP9 | (1) (3) (6) (8) |
| CXAD4169 | Stereo Class D Audio Power Amplifier | 10W x 2 | 52dB | 4~12V | TSSOP28 | (7) (10) |
