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参数资料
| 型号： | MF4 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | MF4 4th Order Switched Capacitor Butterworth Lowpass Filter |
| 中文描述： | MF4四阶巴特沃斯低通开关电容滤波器 |
| 文件页数： | 3/14页 |
| 文件大小： | 481K |
| 代理商： | MF4 |
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
+
–V
)
Voltage At Any Pin
14V
V
+
+ 0.2V
V
0.2V
5 mA
20 mA
500 mW
Input Current at Any Pin (Note 14)
Package Input Current (Note 14)
Power Dissipation (Note 15)
Storage Temperature
ESD Susceptibility (Note 13)
Soldering Information (10 sec.)
150C
800 V
260C
Operating Ratings
(Note 2)
Temperature Range
MF4CN-50
Supply Voltage (V
+
–V
)
T
min
≤
T
A
0C
≤
T
A
≤
70C
5V to 14V
≤
T
max
Filter Electrical Characteristics
The following specifications apply for f
≤
250 kHz (Note 5) unless otherwise specified.
Boldface limits apply for T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C.
Parameter
Conditions
Typical
(Note 10)
Tested
Limit
(Note 11)
Design
Limit
(Note 12)
Unit
V
+
= +5V, V
= 5V
f
c
, Cutoff Frequency
Range (Note 3)
Supply Current
Maximum Clock
Feedthrough
(Peak-to-Peak)
H
o
, DC Gain
f
clk
/f
c
, Clock to Cutoff
Frequency Ratio
f
clk
/f
c
Temperature
Coefficient
Stopband Attenuation (Min)
DC Offset Voltage
Minimum Output Swing
Min
Max
0.1
20k
3.5
Hz
f
clk
= 250 kHz
V
in
= 0V
2.5
3.5
mA
Filter Output
25
mV
R
source
≤
2 k
0.0
49.96
±
0.3%
±
15
±
0.15
49.96
±
1%
±
0.15
dB
ppm/C
at 2 f
c
25.0
200
+4.0
4.5
50
1.5
80
24.0
24.0
dB
mV
V
V
mA
mA
dB
R
L
= 10 k
+3.5
4.0
+3.5
4.0
Output Short Circuit
Current (Note 8)
Dynamic Range (Note 4)
Additional Magnitude
Response Test Points
(Note 6)
f
clk
= 250 kHz
Source
Sink
f = 6000 Hz
7.57
±
0.47
1.44
±
0.12
7.57
±
0.47
1.44
±
0.12
dB
f = 4500 Hz
f = 3000 Hz
dB
f = 2250 Hz
V
+
= +2.5V, V
= 2.5V
f
c
Cutoff Frequency
Range (Note 3)
Supply Current
Maximum Clock
Feedthrough
(Peak-to-Peak)
H
o
, DC Gain
f
clk
/f
c
, Clock to Cutoff
Frequency Ratio
f
CLK
/f
C
Temperature
Coefficient
min
max
0.1
10k
2.25
Hz
f
clk
= 250 kHz
1.5
2.25
mA
Filter Output
V
in
= 0V
15
mV
R
source
≤
2 k
0.0
50.07
±
0.3%
±
25
±
0.15
50.07
±
1.0%
±
0.15
dB
ppm/C
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