CXAR41261是专门为提供高质量的输出功率而设计的，只需少量的外部组件。它不需要输出耦合电容，完全满足了手机等低电压应用对功耗要求最小的场合的需要，CXAR41261可以提供低待机电流和零关机电流。此外，放大器的唤醒时间足够快，可以将关机模式用作静音功能，CXAR41261具有先进的弹出式和点击式电路，可消除设备打开和关闭时的噪音。这是一款音频功率放大器，主要设计用于移动电话和其他便携式通信的高要求应用设备应用。它能够从5V直流电源向8ΩBTL负载提供1瓦的连续平均功率，失真小于1%（THD+N）。
1%THD+N时的PO，VDD=5V RL=8Ω1.2W
10%THD+N时的PO，VDD=5V RL=8Ω1.50W
1%THD+N时的PO，VDD=3.0V RL=8Ω0.36W（典型值）
1%THD+N时的PO，VDD=2.6V RL=8Ω0.27W（典型值）
2.5-5.5V操作
0.1μA超低电流关机模式
所需外部组件更少
热保护和过电流保护
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[ CXAR41261 ]
目录
7.相关产品
产品概述 返回TOP
The CXAR41261 were specifically designed to provide high quality output power with a minimal amount of external components. It requires no output coupling capacitors, for this reason, it is perfectly meet the needs of mobile phone and other low voltage applications where require the consumption of power in the smallest amount.The CXAR41261 can offer a low standby current and a zero shutdown current. Furthermore, the wake up time of the amplifier is fast enough to use shutdown mode as a mute function，The CXAR41261 has an advanced pop & click circuitry that eliminates the noise during turning on and turning off of the device.The is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watts of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5V DC power supply.
产品特点 返回TOP
PO at 1% THD+N, VDD = 5V RL = 8Ω 1.2W
PO at 10% THD+N, VDD = 5V RL = 8Ω 1.50W
PO at 1% THD+N, VDD = 3.0V RL = 8Ω 0.36W (typ)
PO at 1% THD+N, VDD = 2.6V RL = 8Ω 0.27W (typ)
2.5-5.5V operation
0.1μA ultra low current shutdown mode
Less external components required
Thermal and over current protections
Space saving package DFN 2X2_8L
RoHS compliant and 100% lead(Pb)-free
应用范围 返回TOP
Mobile Phones
PDAs
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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| Class AB | ||||
| 型号 | 操作电压（v） | 通道数 | 输出功率（w） | 封装 |
| CXAR41259 | 2.5~5.5 | 1 | 1.3 | DFN2X2-8L |
| CXAR41260 | 2.5~5.5 | 2 | 2.2 | SOP16/TSSOP20 |
| CXAR41261 | 2.4~5.5 | 1 | 1.2 | DFN2X2-8L |
◀ 上一篇:CXAR41260立体声耳机放大器模式 点击和弹出抑制电路单位增益稳定双桥连接的音频功率放大器当连接到5V电源时小于1.0%THD+N的功率向4Ω负载输出2.2W或向3Ω负载输出2.5W。
下一篇▶:CXAF4101高效升压单声道AB/D类可选式音频功率放大电路单节3.7V锂电池供电给2Ω阻抗的喇叭提供持续5W功率1MHz的固定频率的电流模式升压转换器带宽积高达2.5MHz单位增益稳定
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