CS4271 datasheet(13/53 Pages) CIRRUS

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CS4271

DS592F1

DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

(cont) (Note 12)

Notes: 8. Slow Roll-Off interpolation filter is only available in control port mode.

9. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 21 to 44) have

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

10. 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.

11. De-emphasis is available only in Single Speed Mode; Only 44.1 kHz De-emphasis is available in Stand-

Alone Mode.

12. Plots of this data are contained in the “Appendix” on page 47. See Figure 21 through Figure 44.

Parameter

Slow Roll-Off (Note 8)

Unit

Min

Typ

Max

Single Speed Mode - 48 kHz

Passband (Note 9)

to -0.01 dB corner

to -3 dB corner

0.417

0.499

Frequency Response 10 Hz to 20 kHz

-0.01

+0.01

StopBand

.583

StopBand Attenuation

(Note 10)

Group Delay

6.5/Fs

De-emphasis Error (Note 11)

Fs = 32 kHz

(Relative to 1 kHz)

Fs = 44.1 kHz

Fs = 48 kHz

±0.23

±0.14

±0.09

Double Speed Mode - 96 kHz

Passband (Note 9)

to -0.01 dB corner

to -3 dB corner

.296

.499

Frequency Response 10 Hz to 20 kHz

-0.01

0.01

StopBand

.792

StopBand Attenuation

(Note 10)

Group Delay

3.9/Fs

Quad Speed Mode - 192 kHz

Passband (Note 9)

to -0.01 dB corner

to -3 dB corner

.104

.481

Frequency Response 10 Hz to 20 kHz

-0.01

0.01

StopBand

.868

StopBand Attenuation

(Note 10)

Group Delay

4.2/Fs

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