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LMV1099

不推荐用于新设计

具有远场噪声抑制、SNR 增强功能和耳机驱动器的双输入麦克风前置放大器

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LMV1099

不推荐用于新设计
数据表 立即订购

产品详情

Operating temperature range (°C) -40 to 85 Rating Catalog
Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZR) 25 7.5625 mm² 2.75 x 2.75
  • Noise Reduction Without DSP-Type Artifacts
  • Adapting AGC (Automatic Gain Control) on Ambient Noise Level and Downlink Signal Strength
  • Downlink Adjustable Noise-reducing High Pass Filter
  • Separate Uplink and Downlink Enable Functions
  • No Added Process Delays
  • Low Power Consumption
  • Shutdown Function
  • Maximum AGC Limiter
  • Differential Inputs and Outputs for Noise Immunity
  • Earpiece Amplifier
  • Available in a 25-Bump DSBGA Package

Key Specifications

  • Uplink Far Field Noise Suppression (Electrical FFNSE at f = 1kHz) 33dB (typ)
  • Near-Field SNR Enhancement 6 to 18dB (typ)
  • Downlink SNRIE 16dB (typ)
  • Supply Voltage Range 2.7V to 5.5V
  • Supply Current (VDD = 3.6V) 3.8mA (typ)
  • Shutdown Current 0.06μA (typ)
  • Uplink PSRR (f = 217Hz) 106dB (typ)
  • Downlink SNR (A-weighted) 102dB (typ)
  • Downlink THD+N 0.03% (typ)
  • Earpiece Output Power (RL = 32Ω) 83mW (typ)

All trademarks are the property of their respective owners.

  • Noise Reduction Without DSP-Type Artifacts
  • Adapting AGC (Automatic Gain Control) on Ambient Noise Level and Downlink Signal Strength
  • Downlink Adjustable Noise-reducing High Pass Filter
  • Separate Uplink and Downlink Enable Functions
  • No Added Process Delays
  • Low Power Consumption
  • Shutdown Function
  • Maximum AGC Limiter
  • Differential Inputs and Outputs for Noise Immunity
  • Earpiece Amplifier
  • Available in a 25-Bump DSBGA Package

Key Specifications

  • Uplink Far Field Noise Suppression (Electrical FFNSE at f = 1kHz) 33dB (typ)
  • Near-Field SNR Enhancement 6 to 18dB (typ)
  • Downlink SNRIE 16dB (typ)
  • Supply Voltage Range 2.7V to 5.5V
  • Supply Current (VDD = 3.6V) 3.8mA (typ)
  • Shutdown Current 0.06μA (typ)
  • Uplink PSRR (f = 217Hz) 106dB (typ)
  • Downlink SNR (A-weighted) 102dB (typ)
  • Downlink THD+N 0.03% (typ)
  • Earpiece Output Power (RL = 32Ω) 83mW (typ)

All trademarks are the property of their respective owners.

The LMV1099 is an uplink and downlink voice intelligibility enhancing analog IC, ideally suited for mobile handsets. Uplink voice intelligibility is improved by rejecting far-field noise through a unique two-microphone solution. Downlink voice intelligibility is improved by enhancing the SNR (Signal-to-Noise Ratio) between the downlink voice and the ambient noise environment at the user’s earpiece.

The LMV1099 preserves uplink near-field voice signals within close range of the microphones while rejecting far-field acoustic noise greater than 0.5m from the microphones.

The LMV1099 also enhances downlink voice intelligibility by improving near-field SNR based on the user’s environment. The analog circuitry adapts dynamically to both the user’s ambient noise environment as well as the downlink signal amplitude to ensure optimum SNRI (signal-to-noise ratio improvement). The downlink path also provides uplink noise attenuation through an adjustable high pass filter before the SNR enhanced downlink voice reaches the user’s earpiece.

Unlike digital-based noise reduction solutions, the all-analog low power consuming LMV1099 increases both uplink and downlink voice intelligibility without DSP-type artifacts, distortions or processing delays.

The LMV1099 is an uplink and downlink voice intelligibility enhancing analog IC, ideally suited for mobile handsets. Uplink voice intelligibility is improved by rejecting far-field noise through a unique two-microphone solution. Downlink voice intelligibility is improved by enhancing the SNR (Signal-to-Noise Ratio) between the downlink voice and the ambient noise environment at the user’s earpiece.

The LMV1099 preserves uplink near-field voice signals within close range of the microphones while rejecting far-field acoustic noise greater than 0.5m from the microphones.

The LMV1099 also enhances downlink voice intelligibility by improving near-field SNR based on the user’s environment. The analog circuitry adapts dynamically to both the user’s ambient noise environment as well as the downlink signal amplitude to ensure optimum SNRI (signal-to-noise ratio improvement). The downlink path also provides uplink noise attenuation through an adjustable high pass filter before the SNR enhanced downlink voice reaches the user’s earpiece.

Unlike digital-based noise reduction solutions, the all-analog low power consuming LMV1099 increases both uplink and downlink voice intelligibility without DSP-type artifacts, distortions or processing delays.

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* 数据表 Uplink Far Field Noise Suppression and Downlink SNR Enhancing Microphone Amp 数据表 (Rev. D) 2013年 5月 2日

设计和开发

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IDE、配置、编译器或调试器

LMV1099APP-SW — LMV1099 软件

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DSBGA (YZR) 25 查看选项
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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

支持和培训

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