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80-mW 无需耦合电容器 立体声耳机放大器_BD88400FJ

BD88400FJ是无需输出耦合电容器的耳机放大器。本IC内置有稳压电荷泵型负电源发生电路,可从电源电压直接生成稳定的-2.4V负电压。通过采用+2.4V的正电压与该负电压的两种电压来驱动耳机放大器,以ground level为基准进行输出。因此,无需大容量的输出耦合电容器,可直接连接耳机。由此,可降低成本,缩减电路板面积,降低部件的高度。此外,没有因输出耦合电容器与输出负载阻抗引起的低音区域的信号衰减,可输出丰富的低音。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD88400FJ-GE2 供应中 SOP-J14 2500 2500 Taping Yes
 
特性:
Vcc(Min.)[V] 2.4
Vcc(Max.)[V] 5.5
Ext. Gain Yes
Headphone Output Type Ground-Centered
Headphone THD+N[%] 0.0060
Headphone PSRR[dB] -80.0
Headphone Input Type Single
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
特点:
    • No Bulky DC-Blocking Capacitors Required
    • No Degradation of Low-Frequency Response Due to Output Capacitors
    • Ground-Referenced Outputs
    • Gain setting: Variable Gain with External Resistors
    • Low THD+N
    • Low Supply Current
    • Integrated Negative Power Supply
    • Integrated Short-Circuit and Thermal-Overload Protection
 
 
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技术信息
Application Note

BD88400FJ Evaluation Board Information

Application Note

Thermal Resistance