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LM48860

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具有固定 1.5V/V 增益的 50mW 立体声模拟输入耳机放大器

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LM48860

正在供货
数据表 立即订购

产品详情

Output power (W) 0.04 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 80 Rating Catalog Operating temperature range (°C) -40 to 84 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.1 Architecture Class-AB (ground-centered) Iq per channel (typ) (mA) 2.1
Output power (W) 0.04 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Load (min) (Ω) 16 PSRR (dB) 80 Rating Catalog Operating temperature range (°C) -40 to 84 Headphone channels Stereo Volume control No Shutdown current (ISD) (µA) 0.1 Architecture Class-AB (ground-centered) Iq per channel (typ) (mA) 2.1
DSBGA (YZR) 12 3.9375 mm² 2.25 x 1.75
  • Fixed Logic Levels with Supply Voltage
  • Ground Referenced Outputs
  • High PSRR
  • Available in Space-Saving DSBGA Package
  • Ultra Low Current Shutdown Mode
  • Improved Pop & 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

Key Specifications

  • PSRR at 217Hz (VDD = 3.0V): 80dB (typ)
  • Stereo Power Output at VDD = 3V, RL = 16Ω, THD+N = 1%: 40mW (typ)
  • Shutdown Current 0.1μA (typ)
  • Internal Fixed Gain: 1.5V/V (typ)
  • Operating Voltage: 2.0V to 5.5V

All trademarks are the property of their respective owners.

  • Fixed Logic Levels with Supply Voltage
  • Ground Referenced Outputs
  • High PSRR
  • Available in Space-Saving DSBGA Package
  • Ultra Low Current Shutdown Mode
  • Improved Pop & 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

Key Specifications

  • PSRR at 217Hz (VDD = 3.0V): 80dB (typ)
  • Stereo Power Output at VDD = 3V, RL = 16Ω, THD+N = 1%: 40mW (typ)
  • Shutdown Current 0.1μA (typ)
  • Internal Fixed Gain: 1.5V/V (typ)
  • Operating Voltage: 2.0V to 5.5V

All trademarks are the property of their respective owners.

The LM48860 is a ground referenced, fixed-gain audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply.

The LM48860 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 amount of external components. The LM48860 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM48860 features a low-power consumption shutdown mode selectable for either channel separately. This is accomplished by driving either the SD_RC (Shutdown Right Channel) or SD_LC (Shutdown Left Channel) (or both) pins with logic low, depending on which channel is desired shutdown. Additionally, the LM48860 features an internal thermal shutdown protection mechanism.

The LM48860 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM48860 has an internal fixed gain of 1.5V/V.

The LM48860 is a ground referenced, fixed-gain audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply.

The LM48860 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 amount of external components. The LM48860 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM48860 features a low-power consumption shutdown mode selectable for either channel separately. This is accomplished by driving either the SD_RC (Shutdown Right Channel) or SD_LC (Shutdown Left Channel) (or both) pins with logic low, depending on which channel is desired shutdown. Additionally, the LM48860 features an internal thermal shutdown protection mechanism.

The LM48860 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM48860 has an internal fixed gain of 1.5V/V.
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* 数据表 Ground-Referenced, Ultra Low Noise, Fixed Gain Stereo Headphone Amplifier 数据表 (Rev. D) 2013年 5月 3日

设计和开发

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仿真模型

LM48860 PSpice Model

SNAM052.ZIP (25 KB) - PSpice Model
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仿真模型

LM48860 TINA-TI Reference Design

SNAM053.TSC (737 KB) - TINA-TI Reference Design
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仿真模型

LM48860 TINA-TI Spice Model

SNAM054.ZIP (12 KB) - TINA-TI Spice Model
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模拟工具

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订购和质量

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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