AKD4620B Datasheet, PDF (7/60 Pages) Asahi Kasei Microsystems – Evaluation board AK4620B

ASAHI KASEI
[AKD4620B-B]
b) serial mode
SW1-1
(P/S)
L
L
L
L
DFS1
bit
0
0
0
1
DFS0
bit
0
0
1
0
CMODE CKS1 CKS0 SW3-4 SW3-5
bit
bit bit (OCKS1) (OCKS0)
Sampling
Speed of
AK4620B
0
0
0
OFF
OFF
Normal
Speed
0
0
1
ON
OFF
Normal
Speed
0
0
1
OFF
OFF
Double
Speed
0
0
1
ON
ON Quad Speed
Table 14. Sampling Speed & Master clock Frequency in serial mode
MCLK
Frequency of
AK4620B
256fs
512fs
256fs
128fs
* In serial mode, SW1-4(DFS0), SW1-6(CKS1) and S1-7(CSK0) should be always “OFF”, and DFS1, DFS0, CKS1,
CKS0 and CMODE bits in the AK4620B should be set via the printer port (PORT3).
3-4) AK4114’s master clock mode & reference X’tal frequency
3-4-1) PLL is used as clock source
Synchronized signal should be set via PORT1(optical) or J6(BNC).
Mode
0
SW3-6
(CM1)
OFF
SW3-7
(CM0)
PLL
X'tal Clock source
OFF ON
OFF
PLL
Table 15. Clock Operation Mode ( PLL)
SDTO
RX
SW3-1
(XTL1)
1
SW3-2
(XTL0)
X’tal Frequency
1
OFF
Table 16. Reference X’tal frequency(PLL)
3-4-2) X’tal is used as clock source
Mode
1
SW3-6
(CM1)
OFF
SW3-7
(CM0)
PLL
X'tal Clock source
ON
OFF
ON
X’tal
Table 17. Clock Operation Mode ( X’tal)
SDTO
DAUX
SW3-1 SW3-2
(XTL1) (XTL0)
X’tal Frequency
1
0
24.576MHz
Table 18. Reference X’tal frequency ( X’tal)
<KM078900>
-7-
2005/05