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The TS472 is a differential-input microphone preamplifier optimized for high-performance PDA and notebook audio systems.
This device features an adjustable gain from 0 to 40 dB with excellent power-supply and commonmode rejection ratios. In addition, the TS472 has a very low noise microphone bias generator of 2 V.
It also includes a complete shutdown function, with active low standby mode.主要特性
- Available in flip-chip lead-free package and in QFN24 4 x 4 mm package
- Low noise 2.0 V microphone bias output
- ESD protection (2 kV)
- 40 kHz bandwidth regardless of the gain
- Low distortion: 0.1% typ.
- Low noise: 10 nV/√Hz typ. equivalent input noise at F = 1 kHz
- 2.2 to 5.5 V single supply operation
- Fully-differential input/output
- Fast start up time at 0 dB: 5 ms typ.
- Active low standby mode function (1 μA max)
- Low power consumption at 20 dB: 1.8 mA
样片和购买
| 产品型号 | 封装 | 包装类型 | 温度（ºC） | 供货状态 | ECCN (US) | Country of Origin | Approximate Price (US$)* / Qty | 从ST订购 | 从分销商订购 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||
| TS472IQT | VFQFPN2 24 4x4x1.0 | Tape And Reel | -40 | 85 | 批量生产 | EAR99 | PHILIPPINES | 1.29 / 1k | 立即购买 | 查看供货情况 |
| TS472EIJT | Chip Scale Package 0.5mm pitch | Tape And Reel | -40 | 85 | 批量生产 | EAR99 | CHINA | 1.19 / 1k | 立即购买 | 查看供货情况 |
评估工具
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图片 产品型号 制造商 描述 
STEVAL-CCA023V1 -- Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472 产品型号Demonstration board for low noise microphone preamplifier with 2 V bias based on the TS472
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| TS472EIJT | 批量生产 | Chip Scale Package 0.5mm pitch | Industrial | Ecopack3 | |
| TS472IQT | 批量生产 | VFQFPN2 24 4x4x1.0 | Industrial | Ecopack3 |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
