User's Manual
45
Figure 21: Digital audio interface modes
The internal representation of audio samples within BlueCore5.Multimedia External is 16-bit and data on
SD_OUT is limited to 16-bit per channel.
Symbol
Parameter
Min
Typ
Max
Unit
-
SCK Frequency
-
-
6.2
MHz
-
WS Frequency
-
-
96
kHz
t
ch
SCK high time
80
-
-
ns
t
cl
SCK low time
80
-
-
ns
t
opd
SCK to SD_OUT delay
-
-
20
ns
t
ssu
WS to SCK set-up time
20
-
-
ns
t
sh
WS to SCK hold time
20
-
-
ns
t
isu
SD_IN to SCK set-up time
20
-
-
ns
t
ih
SD_IN to SCK hold time
20
-
-
ns
Table 20: Digital audio interface slave timing