
14
DS568F1
CS4398
SWITCHING CHARACTERISTICS - DSD
(Logic 0 = AGND = DGND; Logic 1 = VLS Volts; CL =20pF)
Parameter
Symbol
Min
Typ
Max
Unit
MCLK Duty Cycle
40
-
60
%
DSD_SCLK Pulse Width Low
tsclkl
160
-
ns
DSD_SCLK Pulse Width High
tsclkh
160
-
ns
DSD_SCLK Frequency
(64x Oversampled)
(128x Oversampled)
1.024
2.048
-
3.2
6.4
MHz
DSD_A / _B valid to DSD_SCLK rising setup time
tsdlrs
20
-
ns
DSD_SCLK rising to DSD_A or DSD_B hold time
tsdh
20
-
ns
DSD clock to data transition (Phase Modulation mode)
tdpm
-20
-
20
ns
sclkh
t
sclkl
t
DSD_A,DSD_B
DSD _SC LK
sdlrs
t
sdh
t
Figure 6. Direct Stream Digital - Serial Audio Input Timing
dp m
t
DSD_A, DSD_B
DS D _ S C L K
( 64F s )
DS D _ S C L K
( 128F s )
dpm
t
Figure 7. Direct Stream Digital - Serial Audio Input Timing for Phase Modulation Mode