Cirrus Logic CS4352 User Manual
Page 7
DS684F2
7
CS4352
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. Amplitude vs. frequency plots of the data in the table below
are available in
“Digital Filter Response Plots” on page 16
.)
Notes:
3.
Response is clock-dependent and will scale with Fs.
4.
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.
5.
De-emphasis is available only in Single-Speed Mode.
Parameter
Min Typ
Max
Unit
Combined Digital and On-chip Analog Filter Response - Single-Speed Mode - 48 kHz
to -0.01 dB corner
to -3 dB corner
0
0
-
-
.454
.499
Fs
Fs
Frequency Response 10 Hz to 20 kHz
-0.01
-
+0.01
dB
StopBand
0.547
-
-
Fs
StopBand Attenuation
102
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
-
9.4/Fs
-
s
Intra-channel Phase Deviation
-
-
±0.56/Fs
s
Inter-channel Phase Deviation
-
-
0
s
De-emphasis Error
(Relative to 1 kHz)
Fs = 44.1 kHz
-
-
±0.14
dB
Combined Digital and On-chip Analog Filter Response - Double-Speed Mode - 96 kHz
to -0.01 dB corner
to -3 dB corner
0
0
-
-
.430
.499
Fs
Fs
Frequency Response 10 Hz to 20 kHz
-0.01
-
0.01
dB
StopBand
.583
-
-
Fs
StopBand Attenuation
80
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
-
4.6/Fs
-
s
Intra-channel Phase Deviation
-
-
±0.03/Fs
s
Inter-channel Phase Deviation
-
-
0
s
Combined Digital and On-chip Analog Filter Response - Quad-Speed Mode - 192 kHz
to -0.01 dB corner
to -3 dB corner
0
0
-
-
.105
.490
Fs
Fs
Frequency Response 10 Hz to 20 kHz
-0.01
-
0.01
dB
StopBand
.635
-
-
Fs
StopBand Attenuation
90
-
-
dB
Total Group Delay (Fs = Output Sample Rate)
-
4.7/Fs
-
s
Intra-channel Phase Deviation
-
-
±0.01/Fs
s
Inter-channel Phase Deviation
-
-
0
s