Cs4350 – Cirrus Logic CS4350 User Manual
Page 11
DS691F2
11
CS4350
2.5
Combined Interpolation and On-Chip Analog Filter Response
The filter characteristics have been normalized to the sample rate (Fs) and is referenced to the desired sam-
ple rate by multiplying the given characteristic by Fs. Amplitude vs. Frequency plots of this data are available
in the
Notes: 6. Response is clock dependent.
7. The Measurement Bandwidth is from stopband to 3 Fs.
8. De-emphasis is available only in Single-Speed Mode; Only 44.1 kHz De-emphasis is available in Stand-
Alone Mode.
9. Slow Roll-off interpolation filter is only available in Control Port Mode.
Table 5. Combined Interpolation and On-Chip Analog Filter Response
Parameter
Min Typ
Max
Unit
Fast Roll-Off
-0.01 dB corner (Single Speed)
0
-
.454
Fs
-0.1 dB corner (Double Speed)
0
-
.42
Fs
-0.2 dB corner (Quad Speed)
0
-
.27
Fs
-3 dB corner (All Speed Modes)
0
-
.499
Fs
Frequency Response 10 Hz to 20 kHz
Single Speed
-0.01
-
+0.01
dB
Double Speed, Quad Speed
-0.02
-
+0.02
dB
StopBand
0.547
-
-
Fs
Stop-Band Attenuation
102
-
-
dB
Total Group Delay (Fs - Output Sample Rate)
TDM Slot 0 Channel B
-
8.4/Fs
-
s
All Other Interface Formats and TDM Slots/Channels
-
9.4/Fs
-
s
Intrachannel Phase Deviation
-
-
±0.56/Fs
s
Interchannel Phase Deviation
-
-
0
s
De-emphasis Error
Fs = 32 kHz
-
-
±0.23
dB
(Relative to 1 kHz)
Fs = 44.1 kHz
-
-
±0.14
dB
Fs = 48 kHz
-
-
±0.09
dB
Slow Roll-Off
-0.01 dB corner (Single Speed)
0
-
0.417
Fs
-0.1 dB corner (Double Speed)
0
-
.37
Fs
-0.2 dB corner (Quad Speed)
0
-
.27
Fs
-3 dB corner (All Speed Modes)
0
-
.499
Fs
Frequency Response 10 Hz to 20 kHz
Single Speed
-0.01
-
+0.01
dB
Double Speed, Quad Speed
-0.02
-
+0.02
dB
StopBand
.583
-
-
Fs
Stop-Band Attenuation
64
-
-
dB
Total Group Delay (Fs - Output Sample Rate)
TDM Slot 0 Channel B
-
5.5/Fs
-
s
All Other Interface Formats and TDM Slots/Channels
-
6.5/Fs
-
s
Intrachannel Phase Deviation
-
-
±0.14/Fs
s
Interchannel Phase Deviation
-
-
0
s
De-emphasis Error
Fs = 32 kHz
-
-
±0.23
dB
(Relative to 1 kHz)
Fs = 44.1 kHz
-
-
±0.14
dB
Fs = 48 kHz
-
-
±0.09
dB