CXAD4173是SOP8封装的3W高效率无滤波器单D类音频功率放大器，具有高PSRR和差分输入，消除了噪声和RF整流。
CXAD4173具有90%的效率和较小的PCB面积，使CXAD4173 D类放大器成为蜂窝手机的理想选择。低噪声、无滤波器的PWM结构消除了输出滤波器，减少了外部元件的数量，降低了系统成本，简化了设计。
CXAD4173具有短路保护和OTP（过热保护）热关机和UVLO（欠压锁定）功能。
1.）10%THD+N时的采购订单，VDD=5V
RL=4Ω3.0W（典型值）
RL=8Ω1.8W（典型值）
2.）1%THD+N时的PO，VDD=5V
RL=4Ω2.5W（典型值）
RL=8Ω1.45W（典型值）
3）超低噪音
4.）无滤波器低电磁干扰
5.）所需外部组件较少
6.）效率高达90%
7.）热保护和过电流保护
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[ CXAD4173 ]
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7.相关产品
产品概述 返回TOP
The CXAD4173 is a 3W high efficiency filterless mono class-D audio power amplifier in a SOP8 package,it has high PSRR and differential input that eliminate noise and RF rectification.
The CXAD4173 features like 90% efficiency and small PCB area make the CXAD4173 class-D amplifier ideal for cellular handsets. A low noise, filterless PWM architecture eliminates the output filter, reducing exte rnal component count , system cost, and simplifying design.
The CXAD4173 features short circuit protection and OTP(over temperature protection) thermal shutdown and UVLO(under voltage lockout). The CXAD4173 is available in SOP-8 package.
产品特点 返回TOP
1.)PO at 10% THD+N, VDD = 5V
RL = 4 Ω 3.0W (typ)
RL = 8 Ω 1.8W (typ)
2.)PO at 1% THD+N, VDD = 5V
RL = 4 Ω 2.5W (typ)
RL = 8 Ω 1.45W (typ)
3.)Superior Low Noise
4.)Filterless and Low EMI
5.)Less external components required
6.)High efficiency up to 90%
7.)Thermal and over current Protections
8.)RoHS compliant and 100% lead(Pb)-free Applications
应用范围 返回TOP
Mobile Phones PDA,
GPS Portable Electrolic
Devices Desktop Speaker
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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| D类音频放大IC | ||||||
| 型号 | 电压范围 | 静态电流 | 输出功率 | 静态输出电压 | 纹波抑制比 | 封装 |
| CXAD4173 | 2.4V-5.5V | 3.8mA | 3.0W/Vcc=5V Rl=4ohm | 1mV/Vcc=5V | 75dB | MSOP-8 SOP-8 |
| CXAD4158 | 2.5V-6.5V | 4mA | 4.7W/Vcc=6.5V Rl=4ohm | 6mV/Vcc=5V | 70dB | SOP8 |
| CXAD4159 | 2.7V-5.5V | 0.1uA | 3.2W/Vcc=5VRl=4ohm | 10mV/Vcc=5V | 75dB | MSOP8 |
| CXAD4160 | 2V-5.5V | 5W/Vcc=5V Rl=2ohm | ESOP8 | |||
| CXAD4161 | 2.0V-5.5V | 16mA | 2*3.2W/Vcc=5V Rl=4ohm | 5mV/Vcc=6V | 58dB | SOP16 |
| CXAD4162 | 2.8V-5.0V | 8mA | 2*5.2W/Vcc=5V Rl=2ohm | 10mV/Vcc=6V | 80dB | ESOP16 |
| CXAD4163 | 3.0V-9.0V | 21mA | 2*9.5W/Vcc=8.5V Rl=4ohm | 6.5mV/Vcc=6V | 91dB | ESOP16 |
| CXAD4164 | 2.5V-6.5V | 6.5mA | 2*4.7W/Vcc=6.5V Rl=4ohm | 6mV/Vcc=6V | 91dB | SOP16 |
| 带升压的D类音频放大IC | ||||||
| 型号 | 电压范围 | 静态电流 | 输出功率 | 静态输出电压 | 纹波抑制比 | 封装 |
| CXAD4165 | 2.5V-5.5V | 8mA | 7W/Vcc=4.2V，Rl=3ohm | 90dB | SOP16-PP | |
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