AKD4621-B Datasheet, PDF (8/50 Pages) Asahi Kasei Microsystems – AK4621 Evaluation board Rev.2

[AKD4621-B]
b) Serial mode
SW1-1
(P/S)
OFF
OFF
OFF
OFF
DFS1
bit
0
0
0
1
DFS0 CMODE CKS1 CKS0 SW3-4 SW3-5
bit
bit
bit bit (OCKS1) (OCKS0)
Sampling
Speed of
AK4621
0
0
0
0
OFF
OFF
Normal
Speed
0
0
0
1
ON
OFF
Normal
Speed
1
0
0
1
OFF
OFF
Double
Speed
0
0
0
1
ON
ON Quad Speed
Table 17. Sampling Speed & Master clock Frequency in serial mode
MCLK
Frequency of
AK4621
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 AK4621 should be set via the printer port (PORT3).
3-3) AK4114’s master clock mode & reference X’tal frequency
3-3-1) 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 18. Clock Operation Mode (PLL)
SDTO
RX
SW3-1 SW3-2
(XTL1) (XTL0)
X’tal Frequency
ON
ON
OFF
Table 19. Reference X’tal frequency (PLL)
3-3-2) X’tal is used as clock source (Default)
Mode
1
SW3-6
(CM1)
OFF
SW3-7
(CM0)
PLL
X'tal Clock source
ON OFF
ON
X’tal
Table 20. Clock Operation Mode (X’tal)
SDTO
DAUX
(Default)
SW3-1 SW3-2
(XTL1) (XTL0)
X’tal Frequency
ON
OFF
24.576MHz
(Default)
Table 21. Reference X’tal frequency (X’tal)
<KM100802>
-8-
2010/12