
ASAHI KASEI 
[AK4346] 
MS0531-E-00 
2006/07 
- 7 - 
SWITCHING CHARACTERISTICS 
 (Ta = 25
°
C; AVDD, DVDD = 2.7 
~
 3.6V; C
L 
= 20pF) 
Parameter 
Master Clock Frequency
         Duty Cycle 
LRCK Frequency
Normal Mode (TDM0= “0”, TDM1= “0”)
Normal Speed Mode 
Double Speed Mode 
Quad Speed Mode    
Duty Cycle
TDM256 mode (TDM0= “1”, TDM1= “0”)
Normal Speed Mode  
High time 
Low time
TDM128 mode (TDM0= “1”, TDM1= “1”)
Normal Speed Mode 
Double Speed Mode  
High time 
Low time
Audio Interface Timing 
BICK Period 
         BICK Pulse Width Low 
                    Pulse Width High 
         BICK “
↑
” to LRCK Edge         (Note 14) 
         LRCK Edge to BICK “
↑
”         (Note 14) 
         SDTI Hold Time 
         SDTI Setup Time 
Control Interface Timing (3-wire Serial mode): 
        CCLK Period 
        CCLK Pulse Width Low 
                    Pulse Width High 
        CDTI Setup Time 
        CDTI Hold Time 
        CSN High Time 
        CSN “
↓
” to CCLK “
↑
” 
        CCLK “
↑
” to CSN “
↑
” 
Control Interface Timing (I
2
C Bus mode):
SCL Clock Frequency 
Bus Free Time Between Transmissions 
Start Condition Hold Time (prior to first clock pulse) 
Clock Low Time 
Clock High Time 
Setup Time for Repeated Start Condition 
SDA Hold Time from SCL Falling             (Note 15) 
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 
Reset Timing 
         RSTB Pulse Width                      (Note 16) 
Symbol 
fCLK 
dCLK 
fsn 
fsd 
fsq 
Duty 
fsn 
tLRH 
tLRL 
fsn 
fsd 
tLRH 
tLRL 
tBCK 
tBCKL 
tBCKH 
tBLR 
tLRB 
tSDH 
tSDS 
tCCK 
tCCKL 
tCCKH 
tCDS 
tCDH 
tCSW 
tCSS 
tCSH 
fSCL 
tBUF 
tHD:STA
tLOW 
tHIGH 
tSU:STA 
tHD:DAT
tSU:DAT
tR 
tF 
tSU:STO 
tSP 
Cb 
tRST 
Min 
2.048 
40 
8 
60 
120 
45 
8 
1/256fs
1/256fs
8 
60 
1/128fs
1/128fs
81 
30 
30 
20 
20 
10 
10 
200 
80 
80 
40 
40 
150 
50 
50 
- 
1.3 
0.6 
1.3 
0.6 
0.6 
0 
0.1 
- 
- 
0.6 
0 
- 
150 
Typ 
11.2896 
Max 
36.864 
60 
48 
96 
192 
55 
48 
Units
MHz
% 
kHz
kHz
kHz
% 
kHz
ns 
ns 
kHz
kHz
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
ns 
kHz
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
μ
s 
ns 
pF 
ns 
48 
96 
400 
- 
- 
- 
- 
- 
- 
- 
0.3 
0.3 
- 
50 
400