CS4271 Datasheet, PDF (13/53 Pages) Cirrus Logic – 24-Bit, 192 kHz Stereo Audio CODEC

CS4271
DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
(cont) (Note 12)
Parameter
Single Speed Mode - 48 kHz
Passband (Note 9)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
De-emphasis Error (Note 11)
(Relative to 1 kHz)
Double Speed Mode - 96 kHz
Passband (Note 9)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
Quad Speed Mode - 192 kHz
Passband (Note 9)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
Slow Roll-Off (Note 8)
Min
Typ
Max
Unit
to -0.01 dB corner
to -3 dB corner
(Note 10)
Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
0
0
-0.01
.583
64
-
-
-
-
-
-
-
-
-
6.5/Fs
-
-
-
0.417
Fs
0.499
Fs
+0.01
dB
-
Fs
-
dB
-
s
±0.23
dB
±0.14
dB
±0.09
dB
to -0.01 dB corner
to -3 dB corner
(Note 10)
0
0
-0.01
.792
70
-
-
-
-
-
-
3.9/Fs
.296
Fs
.499
Fs
0.01
dB
-
Fs
-
dB
-
s
to -0.01 dB corner
to -3 dB corner
(Note 10)
0
0
-0.01
.868
75
-
-
-
-
-
-
4.2/Fs
.104
Fs
.481
Fs
0.01
dB
-
Fs
-
dB
-
s
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.
DS592F1
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