CXAB4110B是一款单声道AB类音频功率放大器，专为手机和其他便携式媒体设备的高要求应用而设计。它能够从5VDC电源向8ΩBTL负载提供1.25W的连续输出功率，失真小于1%（THD+N）。
CXAB4110B是专门为提供高质量的输出功率与最少的外部组件。CXAB4110B不需要输出耦合电容器或自举电容器，因此非常适合用于移动电话和其他低电压应用，其中最低功耗是一个主要要求。
CXAB4110B具有低功耗关机模式。在关机模式下，逻辑低应用到SD引脚，放大器完全关闭，没有电源电流将流经设备。
CXAB4110B还具有先进的弹出和点击电路，消除了在开关转换过程中可能出现的噪音。CXAB4110B是单位增益稳定的，可以通过外部增益设置电阻器进行配置。
停机模式下的超低电流
低静态电流
改进的点击式电路消除了开关转换过程中的噪音，同时支持单端和差分输入
宽工作电压范围：2.5~5.5V
无需输出耦合电容器、缓冲网络或自举电容器
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[ CXAB4110B ]
目录
产品概述 返回TOP
The CXAB4110B is a mono Class-AB audio power amplifier designed for demanding applications in mobile phones and other portable media devices. It is capable of delivering 1.25W of continuous output power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.
The CXAB4110B is specifically designed to provide high quality output power with a minimal number of external components. The CXAB4110B does not require output coupling capacitors or bootstrap capacitors, and is therefore ideal for use in mobile phones and other low voltage applications where minimal power consumption is a primary requirement.
The CXAB4110B features a low-power shutdown mode. In the shutdown mode where a logic low is applied onto the SD pin, the amplifier is completely turned off and no supply current will flow through the device.
The CXAB4110B also features advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions. The CXAB4110B is unity-gain stable and can be configured by external gain-setting resistors.
产品特点 返回TOP
Ultra low current in shutdown mode
Low quiescent current
Improved pop & click circuitry eliminates noise during turn-on and turn-off transitions Supports both single-end and differential inputs
Wide operating voltage range: 2.5 ~ 5.5V
No output coupling capacitors, snubber networks or bootstrap capacitors required
Available in space-saving package COL1.5X1.5-9L MSOP-8L
应用范围 返回TOP
Mobile phone
PDA
Portable electronic devices
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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AB类音频放大IC |
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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 |
通道隔 离度 |
封装 |
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2V-5.5V |
6mA |
2*2.5W/Vcc=5V Rl=3ohm |
50mV/Vcc=5V |
67dB |
90dB |
TSSOP20-PP/SOP16/DIP16 |
|
|
2.5V-5.5V |
4mA |
1W/Vcc=5V Rl=8ohm |
7mV/Vcc=5V |
62dB |
MSOP8 |
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2.5V-5.5V |
2.5mA |
1.25W/Vcc=5VRl=8ohm |
7mV/Vcc=5V |
62dB |
MSOP-8 |
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2V-5.5V |
6.5mA |
2.5W/Vcc=5V Rl=4ohm |
5mV/Vcc=5V |
60dB |
SOP8 |
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|
2V-5.5V |
3.5mA |
2W/Vcc=5V Rl=4ohm |
5mV/Vcc=5V |
65dB |
SOP8 |
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2V-5.0V |
7.5mA |
3W/Vcc=5V Rl=4ohm |
5mV/Vcc=5V |
70dB |
SOP8 |
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2V-5.0V |
7.5mA |
3.1W/Vcc=5VRl=4ohm |
5mV/Vcc=5V |
70dB |
ESOP8 |
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4.5V-22V |
30mA |
32W/Vcc=+-22V Rl=4ohm |
45dB |
TO-220B-5L |
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2V-5.5V |
6.5mA |
2W/Vcc=5V Rl=3ohm |
5mV/Vcc=5V |
60dB |
SOP8 |
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8V-18V |
44mA |
10W/Vcc=15V Rl=2.0ohm |
30dB |
TO-220B-5L |
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6V-22V |
50mA |
14W/Vcc=19V Rl=4ohm |
2mV |
54dB |
TO220B-5L |
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4.5V-22V |
30mA |
32W/Vcc=+-22V |
45dB |
TO-220B-5L |
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1.8V--6V |
6mA |
2*0.35W/Vcc=3V |
1.2V/Vcc=3V |
30dB |
50dB |
SOP8/DIP8 |
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3V--12V |
40mA |
2*2.3W/Vcc=9V Rl=4ohm |
4.5V/Vcc=9V |
46dB |
55dB |
DIP16/SOP16 |
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3V--9V |
40mA |
2*2.3W/Vcc=9V Rl=4ohm |
4.5V/Vcc=9V |
46dB |
55dB |
DIP16 |
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