Delp, Confidenti a l dra ft d elphi – Cirrus Logic CS48DV2B User Manual
Page 18
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
18
Copyright 2009 Cirrus Logic
DS875F2
CONFIDENTIAL
CONFIDENTI
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5.13 Switching Characteristics — Digital Audio Slave Input Port
Figure 7. Digital Audio Input (DAI) Port Timing Diagram
5.14 Switching Characteristics — DSD Slave Input Port
Figure 8. Direct Stream Digital - Serial Audio Input Timing
Parameter
Symbol
Min
Max
Unit
DAI_SCLK period
T
daiclkp
40
-
ns
DAI_SCLK duty cycle
-
45
55
%
Setup time DAI_DATAn
t
daidsu
10
-
ns
Hold time DAI_DATAn
t
daidh
5
-
ns
Parameter
Symbol Min Typ
Max
Unit
DSD_SCLK Pulse Width Low
t
sclkl
78
-
-
ns
DSD_SCLK Pulse Width High
t
sclkh
78
-
-
ns
DSD_SCLK Frequency
(64x Oversampled)
-
1.024
-
3.2
MHz
DSD_A / _B valid to DSD_SCLK rising setup time
t
sdlrs
20
-
-
ns
DSD_SCLK rising to DSD_A or DSD_B hold time
t
sdh
20
-
-
ns
DAI_SCLK
DAI_DATAn
t
daidh
t
daidsu