MF4CN-50 ,MF4 4th Order Switched Capacitor Butterworth Lowpass FilterPin Descriptions8 FILTER The input to the low-pass filter. ToPin Pin FunctionIN minimize gain error ..
MF4CWM100 ,4TH ORDER SWITCHED CAPACITOR BUTTERWORTHElectrical Characteristics The following specifications apply for ICLK s 250 kHz (see Note 5) unles ..
MF4CWM100 ,4TH ORDER SWITCHED CAPACITOR BUTTERWORTHFeatures
I Low Cost
I Easy to use
I 8-pin mini-DIP or 14-pin wide-body so.
I No external co ..
MF4CWM-100 ,4TH ORDER SWITCHED CAPACITOR BUTTERWORTHElectrical Characteristics The following specifications apply for ICLK s 250 kHz (see Note 5) unles ..
MF4CWM50 ,4TH ORDER SWITCHED CAPACITOR BUTTERWORTHMF4
National
Semiconductor
MF4 4th Order Switched Capacitor Butterworth
Lowpass Filter
..
MF4CWM-50 ,4TH ORDER SWITCHED CAPACITOR BUTTERWORTHapplications, or for tighter cutoff frequency control an
externaI TTL or CMOS logic compatible clo ..
MIC5255-3.1BM5 , 150mA Low Noise UCap CMOS LDO
MIC5255-3.1BM5 , 150mA Low Noise UCap CMOS LDO
MIC5255-3.1BM5 , 150mA Low Noise UCap CMOS LDO
MIC5255-3.1BM5 , 150mA Low Noise UCap CMOS LDO
MIC5255-3.1YM5 , 150mA Low Noise UCap CMOS LDO
MIC5255-3.1YM5 , 150mA Low Noise UCap CMOS LDO
MF4CN-50
MF4 4th Order Switched Capacitor Butterworth Lowpass Filter
MF4 4th Order Switched Capacitor Butterworth
Lowpass Filter
General DescriptionThe MF4isa versatile, easyto use, precision4th order But-
terworthlow-pass filter. Switched-capacitor techniqueselimi-
nate external component requirements and allowa
clock-tunable cutoff frequency. The ratioofthe clockfre-
quencyto thelow-pass cutofffrequency isinternallyset to501.A Schmitt trigger clock input stage allowstwo clocking
options, either self-clocking(viaan external resistorandca-
pacitor)for stand-alone applications,orfor tighter cutofffre-
quency controlan external TTLor CMOS logic compatible
clockcan beapplied.The maximallyflat passbandfrequency
response togetherwithaDC gainof1V/V allows cascading
MF4 sections togetherfor higher order filtering.
Features Low Cost Easytouse 8-pin mini-DIPor 14-pin wide-body S.O.No external components5Vto 14V supply voltage Cutoff frequency rangeof0.1Hzto20kHz Cutoff frequency accuracyof± 0.3% typical Cutoff frequencysetby external clock Separate TTLand CMOS/Schmitt-trigger clock inputs
Connection Diagram
Block DiagramTRI-STATE®isa registeredtrademark ofNationalSemiconductorCorp.
Dual-In-Line PackageDS005064-2
Order Number MF4CN-50
SeeNS Package Number N08EDS005064-1
July 1999
MF4
4th
Order
Switched
Capacitor
Butterworth
Lowpass
Filter©1999 National Semiconductor Corporation DS005064
