|
AK4643 Datasheet, PDF (17/104 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/RCV/SPK-AMP | |||
|
◁ |
ASAHI KASEI
[AK4643]
Parameter
Symbol
min
Control Interface Timing (3-wire Serial mode)
CCLK Period
tCCK
200
CCLK Pulse Width Low
Pulse Width High
CDTI Setup Time
CDTI Hold Time
CSN âHâ Time
CSN âââ to CCLK âââ
CCLK âââ to CSN âââ
Control Interface Timing (I2C Bus mode):
tCCKL
80
tCCKH
80
tCDS
40
tCDH
40
tCSW
150
tCSS
50
tCSH
50
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 39)
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
-
Capacitive Load on Bus
Cb
-
Pulse Width of Spike Noise Suppressed by Input Filter tSP
0
Power-down & Reset Timing
PDN Pulse Width (Note 40)
tPD
150
PMADL or PMADR âââ to SDTO valid (Note 41)
tPDV
-
Note 38. I2C is a registered trademark of Philips Semiconductors.
Note 39. Data must be held long enough to bridge the 300ns-transition time of SCL.
Note 40. The AK4643 can be reset by the PDN pin = âLâ.
Note 41. This is the count of LRCK âââ from the PMADL or PMADR bit = â1â.
typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1059
max
Units
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
400
kHz
-
µs
-
µs
-
µs
-
µs
-
µs
-
µs
-
µs
0.3
µs
0.3
µs
400
pF
50
ns
-
ns
-
1/fs
MS0476-E-01
- 17 -
2006/10
|
▷ |