AK4649 Datasheet, PDF (16/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK-AMP

[AK4649]
Parameter
Symbol min
typ
Audio Interface Timing
Master Mode
BICK “↓” to LRCK Edge (Note 25)
LRCK Edge to SDTO (MSB)
(Except I²S mode)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
Slave Mode
LRCK Edge to BICK “↑” (Note 25)
BICK “↑” to LRCK Edge (Note 25)
LRCK Edge to SDTO (MSB)
(Except I²S mode)
BICK “↓” to SDTO
SDTI Hold Time
SDTI Setup Time
tMBLR
−40
-
tLRD
−70
-
tBSD
−70
-
tSDH
50
-
tSDS
50
-
tLRB
50
-
tBLR
50
-
tLRD
-
-
tBSD
-
-
tSDH
50
-
tSDS
50
-
Control Interface Timing (3-wire Mode):
CCLK Period
tCCK
200
-
CCLK Pulse Width Low
tCCKL
80
-
Pulse Width High
tCCKH
80
-
CDTIO Setup Time
tCDS
40
-
CDTIO Hold Time
tCDH
40
-
CSN “H” Time
tCSW
150
-
CSN Edge to CCLK “↑” (Note 26)
tCSS
50
-
CCLK “↑” to CSN Edge (Note 26)
tCSH
50
-
CCLK “↓” to CDTIO (at Read Command)
tDCD
-
-
CSN “↑” to CDTIO (Hi-Z) (at Read Command)(Note 28) tCCZ
-
-
Control Interface Timing (I²C Bus Mode):
SCL Clock Frequency
fSCL
-
-
Bus Free Time Between Transmissions
tBUF
1.3
-
Start Condition Hold Time (prior to first clock pulse)
tHD:STA 0.6
-
Clock Low Time
tLOW
1.3
-
Clock High Time
tHIGH
0.6
-
Setup Time for Repeated Start Condition
tSU:STA 0.6
-
SDA Hold Time from SCL Falling (Note 29)
tHD:DAT
0
-
SDA Setup Time from SCL Rising
tSU:DAT 0.1
-
Rise Time of Both SDA and SCL Lines
tR
-
-
Fall Time of Both SDA and SCL Lines
tF
-
-
Setup Time for Stop Condition
tSU:STO 0.6
-
Capacitive Load on Bus
Cb
-
-
Pulse Width of Spike Noise Suppressed by Input Filter
tSP
0
-
Note 25. BICK rising edge must not occur at the same time as LRCK edge.
Note 26. CCLK rising edge must not occur at the same time as CSN edge.
Note 27. I²C-bus is a trademark of NXP B.V.
Note 28. R_L=1kΩ/10% change (pull-up or DVDD)
Note 29. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
max Units
40
ns
70
ns
70
ns
-
ns
-
ns
-
ns
-
ns
80
ns
80
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
70
ns
70
ns
400
kHz
-
μs
-
μs
-
μs
-
μs
-
μs
-
μs
-
μs
0.3
μs
0.3
μs
-
μs
400
pF
50
ns
MS1023-E-01
- 16 -
2010/08