Cirrus Logic CS4397 - Manual (Page 12)

CS4397
12 DS333F1
8X INTERPOLATOR - 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)
Notes: 10. Fs refers to the input sample rate to the Digital-to-Analog converter, i.e. Fs = 44.1 kHz × 8 = 352.8 kHz.
Parameter Symbol Min Typ Max Unit
Input Sample Rate (Note 10) Fs 128 - 400 kHz
MCLK Frequency (MCLK = 32×Fs)
(MCLK = 48×Fs)
(MCLK = 64×Fs)
(MCLK = 96×Fs)
4.096
6.144
8.192
12.288
-
-
-
- 12.8
19.2
25.6
28.4 MHz
MHz
MHz
MHz
MCLK Duty Cycle 40 - 50 %
WCKI Duty Cycle 25 - 75 %
BCKI Frequency 32xFs MHz
BCKI rising to WCKI edge delay t
slrd
20 - - ns
BCKI rising to WCKI edge setup time t
slrs
20 - - ns
SDATA valid to BCKI rising setup time t
sdlrs
20 - - ns
BCKI rising to DIL/DIR hold time t
sdh
20 - - ns
sclkh
t
slrs
t
slrd
t
sdlrs
t sdh
t
sclkl
t
DIL/DIR
BCKI
WCKI
Figure 3. Serial Audio Input Timing