AKD4125-A Datasheet, PDF (4/20 Pages) Asahi Kasei Microsystems – digital sample rate converter.

ASAHI KASEI
[AKD4125-A]
Mode
0
1
2
3
4
5
6
7
IDIF2
L
L
L
L
H
H
H
H
IDIF1
L
L
H
H
L
L
H
H
IDIF0
SDTI Format
ILRCK IBICK IBICK Freq
L
16bit, LSB justified
≥ 32fsi
H
20bit, LSB justified
≥ 40fsi
L
24/20bit, MSB justified _{Input Input}
H 24/16bit, I²S Compatible
≥ 48fsi
≥ 48fsi or
32fsi
L
24bit, LSB justified
≥ 48fsi
H
L
24bit, MSB justified
24bit, I²S Compatible
Output Output
64fs
64fs
H
Reserved
Table 4. Input Audio Interface Format (Input PORT)
Master / Slave
Slave
Master
(2) Setting for Output port
(1) When using DIT function of AK4114 (U4)
When using PORT4 (DIT) or J2 (TX), nothing should be connected to PORT3 (OUTPUT). When BICK and
LRCK frequencies are changed, the value of X’tal (X1) frequency should be changed.
JP6
JP7
OBICK OLRCK
• SW4 setting (See Table 5)
Upper-side is “H” and lower-side is “L”.
The audio interface format of the AK4114 is fixed to 24bit, MSB justified. ODIF2-0, CMODE2-0 and
OBIT1-0 of SW3 should be used by default setting.
SW4 No.
1
2
3
4
5
6
7
Name
ODIF1
ODIF0
CMODE2
CMODE1
CMODE0
OBIT1
OBIT0
ON (“H”)
OFF (“L”)
AK4125 Output Audio I/F Format Setting
Fixed to default
AK4125 Mode Setting
Fixed to default
AK4125 Output bit Length Setting
Fixed to default
Table 5. SW4 Setting
Default
H
L
H
L
L
H
H
<KM078701>
-4-
2006/04