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LMV1099
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LMV1099

  • Category:Audio amplifier
  • Product Name:Upstream far-field noise suppression and improved signal-to-noise ratio with headphone drivers to microphone amplifiers
  • Manufacturers:NSC
  • Production Batch Number:11+
  • Encapsulation:MICRO SMD
  • Stock Status:There is stock
  • Stock Quantity:35200
  • Minimum order quantity: 1
  • Details:点击查找LMV1099的pdf资料
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  • Product introduction

peculiarity

  • 没有DSP降噪型工件。
  • 适应于环境噪声水平和下行信号强度AGC（自动增益控制）
  • 下行可调节降噪的高通滤波器
  • 上行和下行启用独立的功能
  • 不添加过程中的延误
  • Low power consumption
  • Shutdown function
  • AGC的最大限
  • 差分输入和输出的抗干扰能力
  • Headphone amplifier
  • 可在一个25焊球的micro SMD

illustrate

该LMV1099是上行和下行的语音清晰度提高模拟IC，非常适用于手机的理想选择。 上行语音清晰度提高了拒绝通过一个独特的双麦克风解决方案远场噪声。 下行语音清晰度提高了提高下行之间的语音和用户的听筒周围的噪音环境SNR（信号噪声比）。

该LMV1099保持上行近场范围内的麦克风近距离语音信号，同时拒绝远场噪声比从麦克风0.5米更大。

该LMV1099也增强了提高近场SNR用户的环境为基础的下行语音清晰度。 模拟电路既适应动态用户的环境噪声环境以及下行信号的幅度，以确保最佳的SNRI（信号噪声比的改善）。 下行路径还通过一个可调节的高通滤波器的上行噪声衰减前的信噪比语音增强下行到达用户的听筒。

与数字化的降噪解决方案，全模拟低功耗LMV1099增加无DSP型工件，失真或延误处理上行和下行的语音清晰度。

Main specifications

■ 远场噪声抑制上行 （电器FFNS在f = 1kHz时E） 33分贝（典型值）
■ 近场信噪比增强 618分贝（典型值）
■ 下行SNRIË 16分贝（典型值）
■ Supply voltage range 2.7V to 5.5V
■ 电源电流（VDD= 3.6V） 3.8毫安（典型值）
■ Shutdown current 0.06μA（典型值）
■ 上行PSRR（F = 217Hz时） 106分贝（典型值）
■ 下行信噪比（A计权） 102分贝（典型值）
■ 下行THD + N 0.03％（典型值）
■ 耳机输出功率
（RL =32Ω） 83mW（典型值）


apply

  • Mobile phone
  • Mobile and handheld two-way radio communication equipment
  • 蓝牙和其它电源耳机

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