MF8CCJ National Semiconductor, MF8CCJ Datasheet - Page 22

• Manufacturer Part Number: MF8CCJ
• Manufacturer: National Semiconductor

Specifications of MF8CCJ

• Architecture: Switched Capacitor
• Cutoff Frequency: 20KHz
• Dual Supply Voltage (typ): ±5V
• Power Supply Requirement: Single/Dual
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Package Type: MDIP
• Lead Free Status / RoHS Status: Not Compliant

2 0 Design Tables for Multiple Feedback Loop Bandpass Filters
Note Multiple feedback loop filters of higher order than those specified in the tables will oscillate due to phase shift at the output of the summing amplifier This
phase shift is not the fault of the MF8 it is inherent in this type of multiple feedback loop topology In addition all filters marked with an asterisk ( ) will be unstable
for Q
Order
Order
Order
Order
Order
Order
Order
Order
s
4
6
4
6
4
6
4
6
4
6
4
6
4
6
4
6
1 due to phase shifts caused by the MF8’s switched-capacitor design approach
0 7176
0 3237
0 6968
0 3118
0 6769
0 3005
0 6577
0 2897
0 6392
0 2796
0 6213
0 2699
0 6041
0 2607
0 5875
0 2519
K
K
K
K
K
K
K
K
0
0
0
0
0
0
0
0
0 8744
0 2544
0 8438
0 2446
0 8148
0 2353
0 7871
0 2265
0 7607
0 2182
0 7356
0 2104
0 7116
0 2029
0 6886
0 1959
K
K
K
K
K
K
K
K
2
2
2
2
2
2
2
2
CHEBYSHEV RIPPLE 2 3 dB
CHEBYSHEV RIPPLE 2 4 dB
CHEBYSHEV RIPPLE 2 5 dB
CHEBYSHEV RIPPLE 2 6 dB
CHEBYSHEV RIPPLE 2 7 dB
CHEBYSHEV RIPPLE 2 8 dB
CHEBYSHEV RIPPLE 2 9 dB
CHEBYSHEV RIPPLE 3 0 dB
1 0016
0 9635
0 9275
0 8935
0 8612
0 8306
0 8016
0 7739
K
K
K
K
K
K
K
K
3
3
3
3
3
3
3
3
22
K
K
K
K
K
K
K
K
4
4
4
4
4
4
4
4
K
K
K
K
K
K
K
K
5
5
5
5
5
5
5
5
K
K
K
K
K
K
K
K
6
6
6
6
6
6
6
6
(Continued)
2 6737
4 3550
2 7350
4 4507
2 7962
4 5462
2 8573
4 6415
2 9183
4 7368
2 9792
4 8322
3 0402
4 9276
3 1013
5 0231
K
K
K
K
K
K
K
K
Q
Q
Q
Q
Q
Q
Q
Q