MF6CWM-100 National Semiconductor, MF6CWM-100 Datasheet - Page 17

• Manufacturer Part Number: MF6CWM-100
• Manufacturer: National Semiconductor

Specifications of MF6CWM-100

• Architecture: Switched Capacitor
• Dual Supply Voltage (typ): ±3/±5V
• Power Supply Requirement: Single/Dual
• Single Supply Voltage (min): 5V
• Dual Supply Voltage (min): ±2.5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Package Type: SOIC W
• Filter Type: Low Pass Filter
• Lead Free Status / RoHS Status: Not Compliant

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.
www.national.com