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SGM4823

量产

Single/Dual-Input, Fixed-Gain Microphone Amplifier with Integrated Bias

Preview Image
Preview Image

The SGM4822/SGM4825 (single-input) and SGM4823/SGM4826 (dual-input) are low noise, low power, rail-to-rail, fixed-gain microphone amplifiers with integrated bias. The SGM4822/SGM4823 support power supply voltage from 3.3V to 5.5V and the SGM4825/SGM4826 support wide power supply voltage from 2.7V to 5.5V. The devices are suitable for portable audio applications. They feature low THD+N = 0.009% in active mode, 2.6MHz bandwidth and forced shutdown mode.

The SGM4822/SGM4823 power-saving features include automatic switching between low power monitor mode and low noise active mode, and the devices also provide latched push-pull output to wake up external MCU in sleeping mode. Two inputs of the SGM4823/SGM4826 allow two microphones to be multiplexed into one output.

The devices operate over an ambient temperature range of -40 to +85.

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特性
  • Very Low Noise: 30nV/√Hz at 1kHz, Gain = 20dB

  • Very Low THD+N: 0.009%, Gain = 20dB

  • Wide Supply Voltage Range: 3.3V to 5.5V

  • Low Quiescent Current:

    0.1μA in Forced Shutdown Mode

    4μA in Monitor Mode at VCC = 3.3V

    660μA in Active Mode

  • Low Noise Microphone Bias Voltage: 2.3V

  • Rail-to-Rail Outputs

  • 20dB Fixed-Gain

  • Automatic Switching between Low Power Monitor Mode and Low Noise Active Mode 

  • Latched Push-Pull Output to Wake Up External MCU in Sleeping Mode

  • -40 to +85 Operating Temperature Range

应用

Laptop Computers

Smart Phones

Digital Cameras

VCRs

订购信息
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM4823B-23YMS10G/TR
量产
MSOP-10
10
Yes
YesYesYesMSL3
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1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 28 days
100K-999K : 70 days
1000K and above : 119 days

* 价格仅供参考。请联系我们的经销商获取正式报价。

** 交货时间仅供参考,可能会根据不同情况而发生变化。

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圣邦微电子 (SGMICRO) 是一家综合性的高性能和高可靠性模拟及混合信号处理和系统电源管理集成电路供应商,为工业自动化、新能源、汽车、通信、计算机、消费电子和医疗设备等应用提供各类模拟信号调理和电源创新解决方案。
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