AK4687 AKM [Asahi Kasei Microsystems], AK4687 Datasheet - Page 10

• Manufacturer Part Number: AK4687
• Description: Asynchronous Stereo CODEC with Capless Stereo Selector
• Manufacturer: AKM [Asahi Kasei Microsystems]

Parameter
Audio Interface Timing (Slave Mode)
PORT2(DAC)
PORT1 (ADC)
Audio Interface Timing (Master Mode)
Control Interface Timing (I
Note 13. BICK rising edge must not occur at the same time as LRCK edge.
Note 14. Data must be held for sufficient time to bridge the 300 ns transition time of SCL.
Note 15. I
MS1307-E-00
SDTI Hold Time
SDTI Setup Time
BICK1 “↓” to SDTO
BICK2 Period
BICK2 Pulse Width Low
LRCK2 Edge to BICK2 “↑”
BICK2 “↑” to LRCK2 Edge
BICK1 Period
BICK1 Pulse Width Low
LRCK1 Edge to BICK1 “↑”
BICK1 “↑” to LRCK1 Edge
LRCK1 to SDTO (MSB)
BICK1 Frequency
BICK1 Duty
BICK1 “↓” to LRCK1 Edge
BICK1 “↓” to SDTO
SCL Clock Frequency
Bus Free Time Between Transmissions
Start Condition Hold Time
Clock Low Time
Clock High Time
Setup Time for Repeated Start Condition
SDA Hold Time from SCL Falling
SDA Setup Time from SCL Rising
Rise Time of Both SDA and SCL Lines
Fall Time of Both SDA and SCL Lines
Setup Time for Stop Condition
Pulse Width of Spike Noise Suppressed by Input Filter
Capacitive load on bus
(prior to first clock pulse)
Pulse Width High
Pulse Width High
2
C-bus is a trademark of NXP B.V.
2
C Bus):
(Note
(Note
(Note
(Note
13)
13)
13)
13)
(Note
14)
- 10 -
tBCK
tBCKL
tBCKH
tLRB
tBLR
tSDH
tSDS
tBCK
tBCKL
tBCKH
tLRB
tBLR
tLRS
tBSD
fBCK
dBCK
tMBLR
tBSD
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
tF
tSU:STO
tSP
Cb
Symbol
min
324
128
128
-20
1.3
0.6
1.3
0.6
0.6
0.1
0.6
81
20
20
20
20
10
10
80
80
0
0
-
-
-
-
64fs
typ
50
max
400
400
0.3
0.3
80
80
20
20
50
-
-
-
-
-
-
-
-
[AK4687]
2011/05
Units
kHz
Hz
pF
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
ns
ns
ns