CS4397
ANALOG CHARACTERISTICS (Continued)
Parameter
Symbol
Min
Typ
Max
Unit
Combined Digital and On-chip Analog Filter Response - Single Speed Mode
Passband
(Note 4)
to -0.1 dB corner
to -3 dB corner
-
-
-
-
0.470
0.492
Fs
Fs
Frequency Response 10 Hz to 20 kHz
Passband Ripple
-.020
-
+0.015
dB
dB
Fs
dB
s
-
.5465
102
-
-
0.0001
StopBand
-
-
-
-
-
StopBand Attenuation
Group Delay
(Note 5)
(Note 6)
tgd
37/Fs
De-emphasis Error
(Note 7)
Fs = 32 kHz
Fs = 44.1 kHz
Fs = 48 kHz
-
-
-
-
-
-
0.10
0.10
0.13
dB
dB
dB
(Relative to 1 kHz)
Combined Digital and On-chip Analog Filter Response - Double Speed Mode
Passband
(Note 4)
to -0.1 dB corner
to -3 dB corner
0
0
-
-
0.448
0.486
Fs
Fs
Frequency Response 10 Hz to 20 kHz
Passband Ripple
-0.017
-
0.035
dB
dB
Fs
dB
s
-
.570
82
-
-
0.0008
StopBand
-
-
-
-
-
StopBand Attenuation
Group Delay
(Note 5)
tgd
20/Fs
Combined Digital and On-chip Analog Filter Response - Quad-Speed Mode
Passband
(Note 4)
to -0.1 dB corner
to -3 dB corner
-
-
-
-
0.385
0.472
Fs
Fs
Frequency Response 10 Hz to 20 kHz
Passband Ripple
0
-
+0.015
dB
dB
Fs
dB
s
-
0.635
83
-
0.00065
StopBand
-
-
-
-
-
StopBand Attenuation
Group Delay
(Note 5)
tgd
-
11/Fs
Notes: 4. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 9-28) have
been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.
5. For Single-Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 1.4 Fs.
For Double-Speed Mode, the Measurement Bandwidth is 0.570 Fs to 1.4 Fs.
For Quad-Speed Mode, the Measurement Bandwidth is 0.635 Fs to 1.3 Fs.
6. Group Delay for Fs=48 kHz 37/48 kHz=770 µs
7. De-emphasis is available only in Single Speed Mode.
6
DS333F1
CIRRUS [ CIRRUS LOGIC ]
