AK4950 Datasheet, PDF (17/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
Parameter
Symbol min
typ
max Unit
Digital Audio Interface Timing; C_L=100pF
DMCLK Output Timing
Period
tSCK
-
1/(64fs)
-
ns
Rising Time
tSRise
-
-
10
ns
Falling Time
tSFall
-
-
10
ns
Duty Cycle
dSCK
40
50
60
%
Audio Interface Timing
DMDAT Setup Time
tSDS
50
-
-
ns
DMDAT Hold Time
tSDH
0
-
-
ns
Power-down & Reset Timing
PDN Pulse Width
(Note 31)
tPD
150
-
-
ns
PMADL or PMADR “↑” to SDTO valid (Note 32)
ADRST bit = “0”
tPDV
-
1059
-
1/fs
ADRST bit = “1”
tPDV
-
267
-
1/fs
Note 31. The AK4950 can be reset by the PDN pin = “L”. When restart the AK4950 after powered-down, set the PDN pin
to “L” and change to “H” after a 10ms interval.
Note 32. This is the count of LRCK “↑” from the PMADL or PMADR bit = “1”.
MS1320-E-00
- 17 -
2011/10