English
Language : 

CS4244 Datasheet, PDF (17/63 Pages) Cirrus Logic – 4 In/4 Out Audio CODEC with PCM and TDM Interfaces
◁
CS4244
COMBINED DAC INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
Test Conditions (unless otherwise specified): VA_SEL = 0 for VA = 3.3 VDC, 1 for VA = 5.0 VDC. The filter charac-
teristics have been normalized to the sample rate (FS) and can be referenced to the desired sample rate by multi-
plying the given characteristic by FS.
Single-Speed Mode
Passband (Note 22)
Parameter
Frequency Response 20 Hz to 20 kHz
StopBand
StopBand Attenuation
DAC1-4 Group Delay (Note 24)
Double-Speed Mode
Passband (Note 22)
Frequency Response 20 Hz to 20 kHz
StopBand
StopBand Attenuation
DAC1-4 Group Delay (Note 24)
Min
to -0.05 dB corner
to -3 dB corner
(Note 23)
0
0
-0.01
0.5465
102
-
to -0.1 dB corner
to -3 dB corner
(Note 23)
0
0
-0.05
0.5770
80
-
Typ
-
-
-
-
-
11/Fs
-
-
-
-
-
7/Fs
Max Unit
0.4780 FS
0.4996 FS
+0.12 dB
-
FS
-
dB
-
s
0.4650 FS
0.4982 FS
+0.2
dB
-
FS
-
dB
-
s
Notes:
22. Response is clock-dependent and will scale with FS.
23. For Single-Speed Mode, the measurement bandwidth is 0.5465 FS to 3 FS.
For Double-Speed Mode, the measurement bandwidth is 0.577 FS to 1.4 FS.
24. The DAC group delay is measured from the FS/LRCK transition (rising or falling) before the first bit of
a (group of) sample(s) is transmitted on the SDINx pins to the time it appears on the AOUTx pins.
DS900F2
17
 ▷