LM1894
- Non-Complementary Noise Reduction, “Single Ended”
- Low Cost External Components, No Critical Matching
- Compatible with All Prerecorded Tapes and FM
- 10 dB Effective Tape Noise Reduction CCIR/ARM Weighted
- Wide Supply Range, 4.5V to 18V
- 1 Vrms Input Overload
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The LM1894 is a stereo noise reduction circuit for use with audio playback systems. The DNR system is non-complementary, meaning it does not require encoded source material. The system is compatible with virtually all prerecorded tapes and FM broadcasts. Psychoacoustic masking, and an adaptive bandwidth scheme allow the DNR to achieve 10 dB of noise reduction. DNR can save circuit board space and cost because of the few additional components required.
技术文档
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| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM1894 Dynamic Noise Reduction System DNR 数据表 (Rev. C) | 2013-4-3 | |||
| 应用手册 | AN-390 DNR Applications of the LM1894 (Rev. C) | 2013-5-1 | ||||
| 应用手册 | AN-386 A Non-Complementary Audio Noise Reduction System (Rev. C) | 2013-5-1 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 14 | Ultra Librarian |