CS4245 데이터 시트보기 (PDF) - Cirrus Logic

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CS4245

104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

Cirrus Logic 

ADC DIGITAL FILTER CHARACTERISTICS

CS4245

Parameter (Notes 15, 17)

Single-Speed Mode

Passband

(-0.1 dB)

Passband Ripple

Stopband

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

Double-Speed Mode

Passband

(-0.1 dB)

Passband Ripple

Stopband

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

Quad-Speed Mode

Passband

(-0.1 dB)

Passband Ripple

Stopband

Stopband Attenuation

Total Group Delay (Fs = Output Sample Rate)

High-Pass Filter Characteristics

Frequency Response

-3.0 dB

-0.13 dB

Phase Deviation

@ 20 Hz

Passband Ripple

Filter Settling Time

Symbol Min Typ Max Unit

tgd

tgd

tgd

(Note 16)

(Note 16)

0

- 0.4896 Fs

-

-

0.035 dB

0.5688 -

-

Fs

70

-

-

dB

- 12/Fs

-

s

0

- 0.4896 Fs

-

-

0.025 dB

0.5604 -

-

Fs

69

-

-

dB

-

9/Fs

-

s

0

- 0.2604 Fs

-

-

0.025 dB

0.5000 -

-

Fs

60

-

-

dB

-

5/Fs

-

s

-

1

-

Hz

20

-

Hz

-

10

-

Deg

-

-

0

dB

105/Fs

s

15. Filter response is guaranteed by design.

16. Response shown is for Fs = 48 kHz.

17. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 33 to 44) are

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

16

DS656F2

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