The LM4811 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4811 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The LM4811 features a digital volume control that sets the amplifier's gain from +12dB to −33dB in 16 discrete steps using a two−wire interface.
The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism.
参数 | LM4811 |
---|---|
Output Power (W) | 0.105 |
PSRR (dB) | 60 |
Rating | Catalog |
Operating Temperature Range (C) | -40 to 85 |
Approx. Price (US$) | 0.38 | 1ku |
Headphone Channels | Stereo |
Volume Control | Yes |
Shutdown Current (ISD) (uA) | 0.3 |
标题 | 类型 | 大小 (KB) | 日期 |
---|---|---|---|
LM4811 Dual 105mW Headphone Amp w/Dig Vol Control & Shutdown Mode | 1608 | 2013年 4月 5日 |
标题 | 类型 | 大小 (KB) | 日期 |
---|---|---|---|
AN-1849 An Audio Amplifier Power Supply Design | 1858 | 2013年 5月 1日 | |
Guidelines for Measuring Audio Power Amplifier Performance | 765 | 2001年 10月 30日 |
型号 | 试生产 / 生产材料 | 状态 | 温度(oC) | 价格(美元) | Quantity | 封装 | 引脚 | 器件标记 | 封装数量 | 载体 |
---|---|---|---|---|---|---|---|
LM4811MM/NOPB | 生产 | ACTIVE | -40 to 85 | 0.38 | 1ku | VSSOP (DGS) | G11 | 1000 | LARGE T&R |
LM4811MMX/NOPB | 生产 | ACTIVE | -40 to 85 | 0.38 | 1ku | VSSOP (DGS) | G11 | 3500 | LARGE T&R |