AKD4621-B Datasheet, PDF (3/50 Pages) Asahi Kasei Microsystems – AK4621 Evaluation board Rev.2

[AKD4621-B]
„ Evaluation modes
Applicable evaluation modes
(1) Evaluation of A/D-D/A Loop back (Default)
(2) Evaluation of DAC
(3) Evaluation of ADC
1) Evaluation of A/D-D/A Loop back (Default)
1-1) Sampling speed & MCLK frequency
a) Parallel mode (Default)
SW1-1
(P/S)
ON
ON
SW1-4 SW1-6 SW1-7 SW3-4 SW3-5
(DFS0) (CKS1) (CKS0) (OCKS1) (OCKS0)
Sampling
Speed of
AK4621
MCLK
Frequency of
AK4621
OFF OFF ON
ON
OFF
Normal
Speed
512fs
ON OFF ON
OFF
OFF
Double
Speed
256fs
Table 2. Sampling Speed & Master clock Frequency in parallel mode
(Default)
* Parallel mode does not support quad speed mode.
b) Serial mode
SW1
(P/S)
OFF
OFF
OFF
DFS1
bit
0
0
1
DFS0
bit
0
1
0
CMODE CKS1 CKS0 SW3-4 SW3-5
bit
bit bit (OCKS1) (OCKS0)
Sampling
Speed of
AK4621
0
0
1
ON
OFF
Normal
Speed
0
0
1
OFF
OFF
Double
Speed
0
0
1
ON
ON Quad Speed
Table 3. Sampling Speed & Master clock Frequency in serial mode
MCLK
Frequency of
AK4621
512fs
256fs
128fs
* In serial mode, SW1-4 (DFS0), SW1-6 (CKS1) and SW1-7 (CSK0) should be always “OFF”, and DFS1, DFS0, CKS1,
CKS0 and CMODE bits in the AK4621 should be set via the printer port (PORT3).
<KM100802>
-3-
2010/12