TIPD181
單電源供電、駐極體麥克風前置放大器參考設計
TIPD181
概覽
This TI Precision design details the design process for a preamplifier to be used with electret microphone capsules. It explains the basic construction and operation of an electret microphone and uses an OPA172 to amplify the output of the microphone to common analog line level voltages.
特點
- TI Precision Designs: Verified Design
- Designed for a single 9V battery power supply
- ~2mA supply current
- 68dB SNR with Microphone
- This design is tested and includes theory, component selection, TINA-TI simulation, PCB schematic & layout, bill of materials, and measured results.
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 使用指南 | Single-Supply Electret Microphone Preamplifier Reference Design | 2015/2/2 |