5.14 Switching Characteristics — DSD Slave Input Port
CS48500 Data Sheet
32-bit Audio Decoder DSP Family
Parameter
Symbol
Min
Typ Max Unit
MCLK Duty Cycle
-
40
-
60
%
DSD_SCLK Pulse Width Low
DSD_SCLK Pulse Width High
DSD_SCLK Frequency
(64x Oversampled)
tsclkl
tsclkh
-
78
78
1.024
-
-
ns
-
-
ns
-
3.2
MHz
(128x Oversampled) -
2.048
-
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
DSD clock to data transition (Phase Modulation mode)
tsdh
tdpm
20
-
-
ns
DRAFT -20
-
20
ns
IAL HI Figure 8. Direct Stream Digital - Serial Audio Input Timing
IDENTDELP DSD_SCLK
(128Fs)
DSD_SCLK
F(64Fs)
CONDSD_A, DSD_B
t dpm
t dpm
Figure 9. Direct Stream Digital - Serial Audio Input Timing for Phase Modulation Mode
DS734A3
©Copyright 2006 Cirrus Logic, Inc.
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