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LM48820

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具有固定 1.5V/V 增益的 95mW 立体声、模拟输入耳机放大器

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LM48820

正在供货
数据表 立即订购

产品详情

Supply voltage (max) (V) 4.5 Supply voltage (min) (V) 1.6 Rating Catalog Operating temperature range (°C) -40 to 85
Supply voltage (max) (V) 4.5 Supply voltage (min) (V) 1.6 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFR) 14 3.24 mm² 1.8 x 1.8
  • Available in Space Saving 0.4mm Pitch DSBGA Package
  • Fixed Logic Levels
  • Ground Referenced Outputs
  • High PSRR
  • Ultra Low Current Shutdown Mode
  • Improved Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors, or Gain-Setting Resistors Required
  • Shutdown Either Channel Independently
  • Soft Start Feature Reduces Start up Transient Current

Key Specifications

  • Improved PSRR at 217Hz: 80dB (typ)
  • Power Output at VDD = 3V, RL = 16Ω, THD+N = 1%: 95mW (typ)
  • Shutdown Current: 0.05μA (typ)
  • Internal Fixed Gain: 1.5V/V (typ)
  • Wide Operating Voltage Range: 1.6V to 4.5V

All trademarks are the property of their respective owners.

  • Available in Space Saving 0.4mm Pitch DSBGA Package
  • Fixed Logic Levels
  • Ground Referenced Outputs
  • High PSRR
  • Ultra Low Current Shutdown Mode
  • Improved Pop and Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors, or Gain-Setting Resistors Required
  • Shutdown Either Channel Independently
  • Soft Start Feature Reduces Start up Transient Current

Key Specifications

  • Improved PSRR at 217Hz: 80dB (typ)
  • Power Output at VDD = 3V, RL = 16Ω, THD+N = 1%: 95mW (typ)
  • Shutdown Current: 0.05μA (typ)
  • Internal Fixed Gain: 1.5V/V (typ)
  • Wide Operating Voltage Range: 1.6V to 4.5V

All trademarks are the property of their respective owners.

The LM48820 is a ground referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16Ω single-ended load, with less than 1% THD+N from a 3V power supply.

The LM48820 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM48820 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other portable applications.

The LM48820 features a low-power consumption shutdown mode selectable for each channel and a soft start function that reduces start-up current transients. Additionally, the LM48820 features an internal thermal shutdown protection mechanism.

The LM48820 contains advanced pop and click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM48820 has an internal fixed gain of 1.5V/V.

The LM48820 is a ground referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16Ω single-ended load, with less than 1% THD+N from a 3V power supply.

The LM48820 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM48820 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other portable applications.

The LM48820 features a low-power consumption shutdown mode selectable for each channel and a soft start function that reduces start-up current transients. Additionally, the LM48820 features an internal thermal shutdown protection mechanism.

The LM48820 contains advanced pop and click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM48820 has an internal fixed gain of 1.5V/V.
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类型 标题 下载最新的英语版本 日期
* 数据表 LM48820 Ground-Ref, Ultra Low Noise, Fixed Gain, 95mW Stereo Headphone Amp 数据表 (Rev. B) 2013年 5月 2日

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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