ak4121 AKM Semiconductor, Inc., ak4121 Datasheet - Page 6

• Manufacturer Part Number: ak4121
• Description: Asynchronous Sample Rate Converter
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
(Ta= 40 85 C; VDD=3.0~3.6V; TVDD=3.0~5.5V; C
Note 8. Min is 8kHz when BYPASS=“H”.
Note 9. BICK rising edge must not occur at the same time as LRCK edge.
Note 10. The AK4121 must be reset by bringing PDN “L” to “H” upon power-up.
MS0191-E-03
Parameter
Master Clock Input (MCLK)
L/R clock for Input data (ILRCK)
L/R clock for Output data (OLRCK)
Audio Interface Timing
Power-down & Reset Timing
PDN Pulse Width
Input
IBICK Period
IBICK Pulse Width Low
IBICK Pulse Width High
ILRCK Edge to IBICK “ ”
BICK “ ” to ILRCK Edge
SDTI Hold Time from IBICK “ ”
SDTI Setup Time to IBICK “ ”
Output (Slave Mode)
OBICK Period
OBICK Pulse Width Low
OBICK Pulse Width High
OLRCK Edge to OBICK “ ”
OBICK “ ” to OLRCK Edge
OLRCK to SDTO (MSB)
OBICK “ ” to SDTO
Output (Master Mode)
BICK Frequency
BICK Duty
BICK “ ” to LRCK
BICK “ ” to SDTO
Frequency
Duty Cycle
Frequency
Duty Cycle
Frequency
Duty Cycle
(Note 9)
Slave Mode
Master Mode
SWITCHING CHARACTERISTICS
(Note 9)
(Note 10)
(Note 9)
(Note 9)
(Note 9)
L
=20pF)
- 6 -
Symbol
tMBLR
tBCKL
tBCKH
tBCKL
tBCKH
dCLK
dBCK
fCLK
tBCK
tBCK
fBCK
tBLR
tLRB
tSDH
tBLR
tLRB
tBSD
tBSD
tSDS
tLRS
Duty
Duty
Duty
tPD
fs
fs
1/64fs
1/64fs
8.192
min
150
40
48
32
48
65
65
30
30
30
30
65
65
30
30
8
20
20
64fs
typ
50
50
50
50
-
-
36.864
max
60
96
52
96
52
30
30
20
30
[AK4121]
2004/08
Units
MHz
kHz
kHz
Hz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%