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参数资料
| 型号： | LM1894MX/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 3/19页 |
| 文件大小： | 0K |
| 描述： | IC NOISE REDUCT SYS DYNAM 14SOIC |
| 标准包装： | 2,500 |
| 类型： | 动态噪音抑制 |
| 应用： | 车载系统，播放器，电视 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOICN |
| 包装： | 带卷 (TR) |
| 配用： | LM1894MTBD-ND - BOARD EVALUATION LM1894 |
| 其它名称： | *LM1894MX *LM1894MX/NOPB LM1894MX |
SNAS551C – DECEMBER 1994 – REVISED APRIL 2013
Figure 15. Technique for Measuring S/N Improvement of the DNR System
FOR FURTHER READING
Tape Noise Levels
1. “A Wide Range Dynamic Noise Reduction System”, Blackmer, “dB” Magazine,August-September 1972,
Volume 6, #8.
2. “Dolby B-Type Noise Reduction System”, Berkowitz and Gundry, Sert Journal,May-June 1974, Volume 8.
3. “Cassette vs Elcaset vs Open Reel”, Toole, Audioscene Canada, April 1978.
4. “CCIR/ARM: A Practical Noise Measurement Method”, Dolby, Robinson, Gundry, JAES,1978.
Noise Masking
1. “Masking and Discrimination”, Bos and De Boer, JAES, Volume 39, #4, 1966.
2. “The Masking of Pure Tones and Speech by White Noise”, Hawkins and Stevens, JAES, Volume 22, #1,
1950.
3. “Sound System Engineering”, Davis Howard W. Sams and Co.
4. “High Quality Sound Reproduction”, Moir, Chapman Hall, 1960.
5. “Speech and Hearing in Communication”, Fletcher, Van Nostrand, 1953.
Copyright 1994–2013, Texas Instruments Incorporated
11
Product Folder Links: LM1894
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