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參數資料
| 型號： | LF580PLID |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數： | 1/4頁 |
| 文件大小： | 81K |
| 代理商： | LF580PLID |
DESCRIPTION
The LF580 continuous analog filter consists of two second
order (12 dB/oct), tunable (0.2 to 10 kHz) highpass Butterworth
filter blocks.
Tracking and corner frequency of each block are controlled
by a single potentiometer. Cascading the two blocks
together results in a single 24dB/oct high pass filter requiring
only two external 0.001
μ
F capacitors for the filter response.
The output noise of each filter stage is typically 5.6
μ
V.
Cascading the two filter blocks together will produce a
noise level which is
V
N
= (V
N1
)
2
+ (V
N2
)
2
Where V
N
is the total output noise of both filters, V
N1
and
V
N2
is the noise of each filter.
To improve the signal-to-noise ratio of the filter the LF580
should be placed after a preamplifier, provided that the
signal level does not exceed the maximum signal capability
of 50mV
RMS
Document No. 500 - 73 - 08
LF580 DATA SHEET
Dual, Continuous, Analog
Highpass Filter
FEATURES
only 2 small capacitors required
200 to 10 kHz adjustable corner frequency
dual 12 dB/Oct Butterworth filter (24 dB/Oct cascaded)
1.1 to 3.0 VDC operating range
adjustable by a single potentiometer
STANDARD PACKAGING
8 pin MICROpac
8 pin PLID
Chip (66 x 61mils)
All resistors in ohms, all capacitors in microfarads unless otherwise stated
BLOCK DIAGRAM
A
B
+
_
+
_
CONTROL
0.001
B
OUT
1.8k
GND
CONTROL
B
IN
A
OUT
A
IN
V
B
0.001
8
7
6
3
1
5
4
Revision Date: January 2001
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: hipinfo@gennum.com
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