Figure 14. 2- and 3-pole butterworth filters, Figure 16. hybrid analog/digital attenuation, Figure 14 – Cirrus Logic CS4224 User Manual

Page 29: And 3-pole butterworth filters, Figure 16, Hybrid analog/digital attenuation

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CS4223 CS4224

DS290F1

29

Figure 14. 2- and 3-Pole Butterworth Filters

Gain
dB

-10 dB

0 dB

Frequency

T2 = 15 µs

T1 = 50 µs

F1

F2

Figure 15. De-emphasis Curve

Signal

Noise

0

0

-113.5

Attenuation (dB)

Am

p

lit

ude

(d

B

)

Analog

Digital

Figure 16. Hybrid Analog/Digital Attenuation

This manual is related to the following products:

CS4223