CS4364_08 Datasheet, PDF (11/50 Pages) Cirrus Logic – 103 dB, 192 kHz 6-Channel D/A Converter

CS4364
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired sam-
ple rate by multiplying the given characteristic by Fs.
(See (Note 12))
Fast Roll-Off
Parameter
Min
Typ
Combined Digital and On-chip Analog Filter Response - Single-Speed Mode - 48 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
0.547
-
StopBand Attenuation
(Note 10)
102
-
Group Delay
-
10.4/Fs
De-emphasis Error (Note 11)
Fs = 32 kHz
-
-
(Relative to 1 kHz)
Fs = 44.1 kHz
-
-
Fs = 48 kHz
-
-
Combined Digital and On-chip Analog Filter Response - Double-Speed Mode - 96 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
.583
-
StopBand Attenuation
(Note 10)
80
-
Group Delay
-
6.15/Fs
Combined Digital and On-chip Analog Filter Response - Quad-Speed Mode - 192 kHz
Passband (Note 9)
to -0.01 dB corner
0
-
to -3 dB corner
0
-
Frequency Response
10 Hz to 20 kHz -0.01
-
StopBand
.635
-
StopBand Attenuation
(Note 10)
90
-
Group Delay
-
7.1/Fs
Max
.454
.499
+0.01
-
-
-
±0.36
±0.21
±0.14
.430
.499
+0.01
-
-
-
.105
.490
+0.01
-
-
-
Unit
Fs
Fs
dB
Fs
dB
s
dB
dB
dB
Fs
Fs
dB
Fs
dB
s
Fs
Fs
dB
Fs
dB
s
Notes:
8. Slow Roll-off interpolation filter is only available in Software Mode.
9. Response is clock dependent and will scale with Fs.
10. For Single-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.
For Double-Speed Mode, the Measurement Bandwidth is from stopband to 3 Fs.
For Quad-Speed Mode, the 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 Hardware
Mode.
12. Amplitude vs. Frequency plots of this data are available in the “Filter Response Plots” on page 43.
DS619F1
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