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參數資料
| 型號： | LMF380CMJ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬濾波器 |
| 英文描述： | LMF380 Triple One-Third Octave Switched-Capacitor Active Filter |
| 中文描述： | TRIPLE SWITCHED CAPACITOR FILTER, CHEBYSHEV, BANDPASS, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數： | 9/12頁 |
| 文件大小： | 232K |
| 代理商： | LMF380CMJ |
Typical Applications
(Continued)
(a)
TL/H/11123–9
(b)
TL/H/11123–10
(c)
TL/H/11123–11
(d)
TL/H/11123–12
FIGURE 4. Examples of detectors for audio signals. (a) Half-wave peak detector. (b) Half-wave average detector.
(c) Full-wave peak detector. (d) Full-wave average detector. All diodes are 1N914 or 1N4148. Input RC low-pass filters
attenuate clock noise from switched-capacitor filters; values shown are for 1 kHz cutoff frequency. C
IN
should be at
least 0.27
m
F for frequency bands below 50 Hz and 0.1
m
F for higher frequencies. Power supplies (not shown) should
be bypassed with at least 0.1
m
F close to the amplifiers.
9
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