beautypg.com

Digital filter characteristics, Cs5346 digital filter characteristics – Cirrus Logic CS5346 User Manual

Page 11

background image

DS861PP3

11

CS5346

DIGITAL FILTER CHARACTERISTICS

7. Response is clock-dependent and will scale with Fs. Note that the response plots (

Figures 17

to

28

) are

normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

8. Response shown is for Fs = 48 kHz.

Parameter (Note

7

)

Symbol

Min

Typ

Max

Unit

Single-Speed Mode

Passband

(-0.1 dB)

0

-

0.4896

Fs

Passband Ripple

-

-

0.035

dB

Stopband

0.5688

-

-

Fs

Stopband Attenuation

70

-

-

dB

Total Group Delay (Fs = Output Sample Rate)

t

gd

-

12/Fs

-

s

Double-Speed Mode

Passband

(-0.1 dB)

0

-

0.4896

Fs

Passband Ripple

-

-

0.025

dB

Stopband

0.5604

-

-

Fs

Stopband Attenuation

69

-

-

dB

Total Group Delay (Fs = Output Sample Rate)

t

gd

-

9/Fs

-

s

Quad-Speed Mode

Passband

(-0.1 dB)

0

-

0.2604

Fs

Passband Ripple

-

-

0.025

dB

Stopband

0.5000

-

-

Fs

Stopband Attenuation

60

-

-

dB

Total Group Delay (Fs = Output Sample Rate)

t

gd

-

5/Fs

-

s

High-Pass Filter Characteristics

Frequency Response

-3.0 dB

-0.13 dB

(Note 8)

-

1

20

-

-

Hz

Hz

Phase Deviation

@ 20 Hz

(Note 8)

-

10

-

Deg

Passband Ripple

-

-

0

dB

Filter Settling Time

10

5

/Fs

s