MF6CWM-50 National Semiconductor, MF6CWM-50 Datasheet - Page 17

• Manufacturer Part Number: MF6CWM-50
• Description: IC FILTER 6TH ORER SW CAP SO14
• Manufacturer: National Semiconductor

Specifications of MF6CWM-50

• Filter Type: Butterworth, Lowpass Switched Capacitor
• Frequency - Cutoff Or Center: 20kHz
• Number Of Filters: 1
• Max-order: 6th
• Voltage - Supply: 5 V ~ 14 V
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *MF6CWM-50

2.0 Designing with the MF6
2.4 CHANGING CLOCK FREQUENCY
INSTANTANEOUSLY
The MF6 will respond favorably to a sudden change in clock
frequency. Distortion in the output signal occurs at the tran-
sition of the clock frequency and lasts approximately three
cutoff frequency (f
control signal is low the MF6-50 has a 100 kHz clock making
f
changes to 50 kHz yielding 1 kHz f
c
= 2 kHz; when this signal goes high the clock frequency
c
) cycles. As shown in Figure 17 , if the
FIGURE 16. MF6-50 “Notch” Filter Amplitude Response
c
.
(Continued)
FIGURE 15. “Notch” Filter
17
The transient response of the MF6 seen in Figure 18 is also
dependent on the f
The MF6 responds as a classical sixth order Butterworth
lowpass filter.
DS005065-29
c
and thus the f
CLK
DS005065-28
applied to the filter.
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