Cirrus Logic CS4397 - Manual (Page 11)

CS4397
DS333F1 11
DSD - SWITCHING CHARACTERISTICS
(T
A
= -10 to 70°C; Logic 0 = AGND = DGND; Logic
1 = VD = 5.25 to 3.0 Volts; C
L
= 20 pF)
Parameter Symbol Min Typ Max Unit
Input Bit Rate per Channel (64x Oversampled)
(128x Oversampled)
1.024
2.048 -
- 3.2
6.4 Mb/s
Mb/s
Master Clock Frequency (CLKMODE = 0)
(CLKMODE = 1)
4.096
6.144 -
- 12.8
19.2 MHz
MHz
MCLK Duty Cycle (All DSD modes) 40 - 60 %
DSD_SCLK Pulse Width Low t
sclkl
20 - - ns
DSD_SCLK Pulse Width High t
sclkh
20 - - ns
DSD_SCLK Frequency (64x Oversampled)
(128x Oversampled)
1.024
2.048 -
- 3.2
6.4 MHz
MHz
DSD_LI_R valid to DSD_SCLK rising setup time t
sdlrs
20 - - ns
DSD_SCLK rising to DSD_L or DSD_R hold time t
sdh
20 - - ns
sclkh
t
sclkl
t
DSD_L, DSD_R
DSD_SCLK
sdlrs
t
sdh
t
Figure 2. Direct Stream Digital - Serial Audio Input Timing