CS42448 datasheet(17/64 Pages) CIRRUS

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DS648F2

CS42448

COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

Notes:

13. Response is clock-dependent and will scale with Fs. Note that the response plots (Figures 44 to 55) have

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

14. Single- and Double-Speed Mode Measurement Bandwidth is from Stopband to 3 Fs.

Quad-Speed Mode Measurement Bandwidth is from Stopband to 1.34 Fs.

15. De-emphasis is only available in Single-Speed Mode.

Parameter (Notes 8, 13)

Min

Typ

Max

Unit

Single-Speed Mode

Passband (Frequency Response)

to -0.05 dB corner

to -3 dB corner

0.4780

0.4996

Frequency Response 10 Hz to 20 kHz

-0.2

+0.08

StopBand

0.5465

StopBand Attenuation

(Note 14)

Group Delay

10/Fs

De-emphasis Error (Note 15)

Fs = 32 kHz

Fs = 44.1 kHz

Fs = 48 kHz

+1.5/+0

+0.05/-0.25

-0.2/-0.4

Double-Speed Mode

Passband (Frequency Response)

to -0.1 dB corner

to -3 dB corner

0.4650

0.4982

Frequency Response 10 Hz to 20 kHz

-0.2

+0.7

StopBand

0.5770

StopBand Attenuation

(Note 14)

Group Delay

5/Fs

Quad-Speed Mode

Passband (Frequency Response)

to -0.1 dB corner

to -3 dB corner

0.397

0.476

Frequency Response 10 Hz to 20 kHz

-0.2

+0.05

StopBand

0.7

StopBand Attenuation

(Note 14)

Group Delay

2.5/Fs

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