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CS8571/CS8571E
CS8571E is a 5.5W mono audio amplifier with FM interference free, AB power amplifier and D power amplifier.
The CS8571E uses the original AERC(Adaptive Edge Rate Control) technology to provide excellent full-bandwidth EMI rejection, and still has a margin of more than 20dB under the FCCPart15 Class B standard without any auxiliary design.
The CS8571E's filter-free PWM modulation structure and built-in gain reduce external components, PCB area and system costs, and simplify design. Up to 90% efficiency, fast startup time and tiny package size make the CS857
The CS8571E uses the original AERC(Adaptive Edge Rate Control) technology to provide excellent full-bandwidth EMI rejection, and still has a margin of more than 20dB under the FCCPart15 Class B standard without any auxiliary design.
The CS8571E's filter-free PWM modulation structure and built-in gain reduce external components, PCB area and system costs, and simplify design. Up to 90% efficiency, fast startup time and tiny package size make the CS857
CS8571/CS8571E Specification download
CS8571/CS8571E Overview:
CS8571/CS8571E Overview:
CS8571E is a 5.5W mono audio amplifier with FM interference free, AB power amplifier and D power amplifier.
The CS8571E uses the original AERC(Adaptive Edge Rate Control) technology to provide excellent full-bandwidth EMI rejection, and still has a margin of more than 20dB under the FCCPart15 Class B standard without any auxiliary design.
The CS8571E's filter-free PWM modulation structure and built-in gain reduce external components, PCB area and system costs, and simplify design. Up to 90% efficiency, fast startup time and small package size make the CS8571E an excellent choice for portable audio products.
CS8571E has built-in overcurrent protection, short circuit protection and overheat protection, which effectively protects the chip from being damaged under abnormal working conditions.
The CS8571E is available in an ESOP8 package with heat sink for customers to choose from, with a rated operating temperature range of -40 ° C to 85 ° C.
The CS8571E's filter-free PWM modulation structure in Class D mode reduces the number of external components, PCB area and system cost, and simplifies the design. The chip has built-in overcurrent protection, overheat protection and undervoltage protection functions, which ensure that the chip is turned off under abnormal working conditions, and effectively protect the chip from being damaged. When the abnormal conditions are eliminated, the CS8571E has a self-recovery function to make the chip work again. The switching mode of the output transistor determines the high efficiency of the CS8571E Class D amplifier.
In Class D mode, the output transistor acts as a current adjusting switch, and the additional power consumed during the switching process is basically negligible. The power loss associated with the output stage is mainly caused by the on-resistance of the MOSFET and the supply current.
The CS8571E has an efficiency of up to 90%. The Class D mode of CS8571E adopts the PWM modulation mode without filter, which eliminates the LC filter of traditional class D amplifier, improves the efficiency, and provides a smaller area and lower cost implementation scheme for the audio subsystem of portable equipment.
The CS8571E has a proprietary timing control circuit built in to achieve comprehensive Pop &Click suppression, which can effectively eliminate the transient noise that may occur during system power-on, downpoint,Wake up and Shutdown operations.
CS8571E In the process of application, when the chip output pin and power or ground short circuit, or short circuit fault between the output, the overcurrent protection circuit will turn off the chip to prevent the chip from being damaged. After the short circuit fault is eliminated, the CS8571 automatically recovers. When the chip temperature is too high, the chip will be shut down. After the temperature drops, the CS8571E can continue to work normally. When the power supply voltage is too low, the chip will also be turned off, and after the power supply voltage is restored, the chip will start again. Class B, Class D switching control function uses MODE pin control. When the feet are high, the CS8571E works in Class D mode. When the MODE pin is low, the CS8571E operates in Class AB mode. The CS8571E is a high-performance Class AB /D integrated audio amplifier that requires an appropriate power supply decoupling capacitor to ensure high efficiency and optimal total harmonic distortion. At the same time to get good. The decoupling capacitor should be placed as close as possible to the VDD of the chip in the layout. Placing the decoupling capacitor close to the CS8571E is important to improve the efficiency of the CS8571E. Because any resistance or self-inductance between the device and the capacitor will lead to a reduction in efficiency. If you want to better filter out low-frequency noise, you need to add a 10uF or larger decoupling capacitor depending on the specific application.
The CS8571E uses the original AERC(Adaptive Edge Rate Control) technology to provide excellent full-bandwidth EMI rejection, and still has a margin of more than 20dB under the FCCPart15 Class B standard without any auxiliary design.
The CS8571E's filter-free PWM modulation structure and built-in gain reduce external components, PCB area and system costs, and simplify design. Up to 90% efficiency, fast startup time and small package size make the CS8571E an excellent choice for portable audio products.
CS8571E has built-in overcurrent protection, short circuit protection and overheat protection, which effectively protects the chip from being damaged under abnormal working conditions.
The CS8571E is available in an ESOP8 package with heat sink for customers to choose from, with a rated operating temperature range of -40 ° C to 85 ° C.
The CS8571E's filter-free PWM modulation structure in Class D mode reduces the number of external components, PCB area and system cost, and simplifies the design. The chip has built-in overcurrent protection, overheat protection and undervoltage protection functions, which ensure that the chip is turned off under abnormal working conditions, and effectively protect the chip from being damaged. When the abnormal conditions are eliminated, the CS8571E has a self-recovery function to make the chip work again. The switching mode of the output transistor determines the high efficiency of the CS8571E Class D amplifier.
In Class D mode, the output transistor acts as a current adjusting switch, and the additional power consumed during the switching process is basically negligible. The power loss associated with the output stage is mainly caused by the on-resistance of the MOSFET and the supply current.
The CS8571E has an efficiency of up to 90%. The Class D mode of CS8571E adopts the PWM modulation mode without filter, which eliminates the LC filter of traditional class D amplifier, improves the efficiency, and provides a smaller area and lower cost implementation scheme for the audio subsystem of portable equipment.
The CS8571E has a proprietary timing control circuit built in to achieve comprehensive Pop &Click suppression, which can effectively eliminate the transient noise that may occur during system power-on, downpoint,Wake up and Shutdown operations.
CS8571E In the process of application, when the chip output pin and power or ground short circuit, or short circuit fault between the output, the overcurrent protection circuit will turn off the chip to prevent the chip from being damaged. After the short circuit fault is eliminated, the CS8571 automatically recovers. When the chip temperature is too high, the chip will be shut down. After the temperature drops, the CS8571E can continue to work normally. When the power supply voltage is too low, the chip will also be turned off, and after the power supply voltage is restored, the chip will start again. Class B, Class D switching control function uses MODE pin control. When the feet are high, the CS8571E works in Class D mode. When the MODE pin is low, the CS8571E operates in Class AB mode. The CS8571E is a high-performance Class AB /D integrated audio amplifier that requires an appropriate power supply decoupling capacitor to ensure high efficiency and optimal total harmonic distortion. At the same time to get good. The decoupling capacitor should be placed as close as possible to the VDD of the chip in the layout. Placing the decoupling capacitor close to the CS8571E is important to improve the efficiency of the CS8571E. Because any resistance or self-inductance between the device and the capacitor will lead to a reduction in efficiency. If you want to better filter out low-frequency noise, you need to add a 10uF or larger decoupling capacitor depending on the specific application.
CS8571/CS8571E Features:
Output power
P at 10% THD+N, V DD = 5V O
RL = 4Ω 3.40W(typical value)
RL = 2Ω 5.50W(typical value)
P at 10% THD+N, V DD = 3.6V O
RL = 4Ω 1.70W(typical value)
RL = 2Ω 2.42W(typical value)
RL = 2Ω 5.50W(typical value)
P at 10% THD+N, V DD = 3.6V O
RL = 4Ω 1.70W(typical value)
RL = 2Ω 2.42W(typical value)
AB类/D类工作模式切换功能
独创的AERC技术,提供优异的全带宽EMI抑制能力
优异的"噼噗-咔嗒"(pop-noise)杂音抑制能力
优异的低噪抑制功能
工作电压范围：2.5V到5.5V
无需滤波的Class-D结构
高达90%的效率
高电源抑制比(PSRR)：在217Hz下为72dB
快速的启动时间 (35ms)
低静态电流 (3mA)
低关断电流 (＜0.1µA)
过流保护，短路保护和过热保护
CS8571/CS8571E符合Rohs标准的无铅封装
CS8571/CS8571E Typical application circuit diagram:
CS8571/CS8571E pin arrangement
CS8571/CS8571E pin definition
CS8571/CS8571E package diagram:
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