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Product

Product

Analog Output MEMS Microphone Signal Conditioning Chip

NSC6280 is a MEMS microphone preamplifier. The NSC6280 features an integrated low-noise offset MEMS microphone circuit, as well as a high-performance analog preamplifier that provides true sound quality and supports flexible microphone systems. The bias voltage and analog preamplifier gain can be adjusted via an internal fuse bank (OTP), so the NSC6280 can support MEMS sensors with different parameters. It can also increase yields and provide better sensitivity consistency. The NSC6280 has two output pads for bias voltage at different positions, one of which can be selected as required at the top plate of the MEMS microphone. In addition, the NSC6280 is used for relatively high-end mobile phone applications. This chip has been subjected optimization in respect of high-frequency EMI interference and yield in mass production.

Product Features

•  Working voltage: 1.6V~3.6V

•  Current drain: 120μA typ.

•  Equivalent input noise: 4μVrms(-108dBV)

•  Gain adjustment (OTP): -4dB~11dB with 0.5dB/Step

•  Frequency response: 20Hz~20kHz

•  Bias voltage: 6V~15.5V with 0.3V/Step

•  Working temperature: -40℃~85℃

Application

•  Cellphone

•  PAD products


Functional Block Diagram

6280.jpg

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