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AK4958ECB Datasheet, PDF (24/35 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/VIDEO-AMP & LDO | |||
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[AK4958]
Parameter
Symbol min
typ
max Unit
Digital Audio Interface Timing; CL=100pF
DMCLK Output Timing
Period
tSCK
-
1/(64fs)
-
s
Rising Time
tSRise
-
-
10
ns
Falling Time
tSFall
-
-
10
ns
Duty Cycle
dSCK
40
50
60
%
Audio Interface Timing
DMDAT Setup Time
tDSDS
50
-
-
ns
DMDAT Hold Time
tDSDH
0
-
-
ns
Power-down & Reset Timing
PDN Accept Pulse Width
(Note 40)
tAPD
200
-
-
ns
PDN Reject Pulse Width
(Note 40)
tRPD
-
-
50
ns
PMADL or PMADR âïâ to SDTO valid (Note 41)
ADRST1-0 bits =â00â
tPDV
-
1059
-
1/fs
ADRST1-0 bits =â01â
tPDV
-
267
-
1/fs
ADRST1-0 bits =â10â
tPDV
-
531
-
1/fs
ADRST1-0 bits =â11â
tPDV
-
135
-
1/fs
VCOM Voltage
Rising Time
(Note 42)
tRVCM
-
0.6
2.0
ms
Note 40. åä½ä¸ã¯PDN pin = âLâãã«ã¹ã§ãªã»ããããããã¾ãã200ns以ä¸ã®PDN pin =âLâãã«ã¹ã§ãªã»ãã
ããããã¾ãã50ns以ä¸ã®PDN pin=âLâãã«ã¹ã§ã¯ãªã»ããã¯ãããã¾ããã
Note 41. PMADL bit ã¾ãã¯PMADR bit ãç«ã¡ä¸ãã¦ããã®LRCKã¯ããã¯ã® âïâã®åæ°ã§ãã
Note 42. ã¢ããã°å
¨ãããã¯(PLLãããã¯å«ã)ã¯ãVCOMé»å§(VCOM pin) ãç«ã¡ä¸ãã£ã¦ããåä½ãéå§
ãã¾ããVCOM pin å¤ä»ãã³ã³ãã³ãµ = 2.2ïFãREGFIL pin å¤ä»ãã³ã³ãã³ãµ = 2.2ïF ã§ã容éãã©
ã¤ã±50%ã®å ´åã§ãã
MS1558-J-01-PB
- 24 -
2013/10
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