Datasheet > NSC6272

NSC6272

更新时间： 2024-04-09 18:58:57

品牌	Logo	应用领域
纳芯微 - NOVOSENSE		放大器
页数	文件大小	规格书
5页	329K
描述
NSC6272/NSC6273是MEMS麦克风的前置放大器。NSC6272/NSC6273具有集成的低噪声偏置MEMS麦克风电路，以及高性能模拟前置放大器，可提供真正的声音质量并支持灵活的麦克风系

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NSC6272 数据手册

NSC6272: MEMS Microphone Preamp

Datasheet (EN) 1.0

Product Overview

The NSC6272 is a pre-amplifier for MEMS Microphone. The NSC6272 has integrated low noise bias circuit

for MEMS microphone, and high performance analog pre-amplifier deliver the genuine sound quality and

support flexible microphone systems. Both of the bias voltage and the analog pre-amplifier gain can be

trimmed by the internal fuse banks (OTP), so the NSC6272 can support MEMS transducers with different

parameters. It also improves the yield and provide better consistency of sensitivity. The NSC6272 has two

output pads for bias voltage with different location, either of which is chosen depending on the location of

top plate of MEMS microphone.

Key Features

⚫ Operating Voltage

⚫ Current Consumption

⚫ Input equivalent noise

⚫ Maximum output Voltage

⚫ Gain (OTP trimming)

⚫ Frequency response

⚫ Bias Voltage

1.6V~3.6V

125uA typ.

4µVrms (-108dBV)

550mVrms (-5.5dBV) at THD < 10%

-4.0dB ~ 11dB with 0.5dB/Step

20Hz ~ 20kHz

7.5V~16V

⚫ Operating temperature

⚫ Package

-40ºC ~ 85ºC

Chip (Wafer)

Applications

⚫ Portable Audio equipment

⚫ MEMS Microphone module

⚫ Cellular Phone

Block Diagram

BIAS2

VDD

Power Supply

Charge

Pump

OUT

Output (Analog output)

Ground

V_REG

BIAS1

MICIN

GND

BIAS1

MICIN

BIAS2

First Bias Voltage Output

Microphone Input (Analog input)

Second Bias Voltage Output

Preamp

2 OUT

GND

Novosense Confidential Page 1

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