FEDL2201-01

1Semiconductor

ML2201–XXX

14/20

Low Pass Filter

ML2201’s analog output goes through the built-in Low Pass Filter. The Figure 4 below shows Frequency

Characteristics and the Table 3 shows Cut-Off Frequency of the LPF.

The LPF’s Frequency Characteristics and Cut-Off Frequency change in proportion to the sampling frequency. No

analog output directly from the D/A converter is unavailable on this chip.

20

10

0

–10

–20

–30

–40

–50

–60

–70

–80

10

100

1 k

10 k

[Hz]

[dB]

Figure 4 LPF Frequency Characteristics (f

Table 3 LPF Cut-Off Frequency

Sampling Frequency (kHz)

(f

Cut-Off Frequency (kHz)

(f

4.0

1.2

5.3

1.6

6.4

2.0

8.0

2.5

10.6

3.2

12.8

4.0

16.0

5.0