- 制造厂商：TI
- 产品类别：音频
- 技术类目：音频放大器 - 耳机放大器
- 功能描述：具有数字音量控制的 105mW 立体声、模拟输入耳机放大器
- 点击这里打开及下载LM4811的技术文档资料
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The LM4811 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16? 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.
- Digital Volume Control Range from +12dB to ?33dB
- WSON and VSSOP Surface Mount Packaging
- "Click and Pop" Suppression Circuitry
- No Bootstrap Capacitors Required
- Low Shutdown Current
- THD+N at 1kHz, 105mW Continuous Average Output Power into 16? 0.1 % (typ)
- THD+N at 1kHz, 70mW Continuous ?Average Power into 32? 0.1 % (typ)
- Shutdown Current 0.3 μA (typ)
All trademarks are the property of their respective owners.
- Output power (W)
- 0.105
- Analog supply (Min) (V)
- 2
- Analog supply (Max) (V)
- 5.5
- PSRR (dB)
- 60
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 85
- Headphone channels
- Stereo
- Volume control
- Yes
- Shutdown current (ISD) (uA)
- 0.3
- Architecture
- Class-AB
- Iq per channel (Typ) (mA)
- 0.65
LM4811的完整型号有：LM4811MM/NOPB、LM4811MMX/NOPB，以下是这些产品的关键参数及官网采购报价：
LM4811MM/NOPB，工作温度：-40 to 85，封装：VSSOP (DGS)-10，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM4811MM/NOPB的批量USD价格：.487（1000+）
LM4811MMX/NOPB，工作温度：-40 to 85，封装：VSSOP (DGS)-10，包装数量MPQ：3500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM4811MMX/NOPB的批量USD价格：.406（1000+）
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