ak4620b AKM Semiconductor, Inc., ak4620b Datasheet - Page 18

• Manufacturer Part Number: ak4620b
• Description: 24-bit 192khz Audio Codec With Ipga
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0401-E-00
CMODE bit
1-2. Parallel mode (P/S pin= “H”)
0
0
0
0
1
1
The Auto Setting Mode detects MCLK/LRCK ratio and selects Normal/Double/Quad speed mode automatically.
As shown in Table 5, Table 6 and Table 7, select the MCLK frequency with the CKS0-1 and DFS0 pins. These
pins should be changed when the PDN pin = “L”.
The Auto Setting Mode detects MCLK/LRCK ratio and selects Normal/Double/Quad speed mode automatically.
Table 4. Auto Setting Mode in serial mode (DFS1-0 = “01”, CMODE bit = “0”, CKS1-0 bit = “11”)
Table 7. Auto Setting Mode in parallel mode (DFS0 pin = “H”, CKS1 pin = “H”, CKS0 pin = “L”)
CKS1 bit
0
0
1
1
0
0
MCLK/LRCK ratio
MCLK/LRCK ratio
Table 6. Master clock frequency in parallel mode (“*”; refer to Table 7.)
CKS1 pin
Table 3. Master clock frequency in serial mode (“*”: refer to Table 4)
DFS0 pin
512 or 768
256 or 384
128 or 192
512 or 768
256 or 384
128 or 192
H
H
L
L
CKS0 bit
H
L
0
1
0
1
0
1
Table 5. Sampling speed in parallel mode
CKS0 pin
(DFS1-0 = “00”)
Normal Speed
H
H
L
L
Normal speed
Double speed
MCLK
1024fs
256fs
512fs
384fs
768fs
N/A
Mode
Normal speed
Normal speed
Double speed
Double speed
Quad speed
Quad speed
(DFS0 pin = “L”)
Normal Speed
Mode
Mode
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MCLK
1024fs
256fs
512fs
384fs
Auto Setting Mode (*)
(DFS1-0 = “01”)
Double Speed
MCLK
256fs
512fs
384fs
N/A
N/A
Auto Setting Mode (*)
54kHz-108kHz
Sampling Rate
32kHz-54kHz
(DFS0 pin = “H”)
Double Speed
108kHz-216kHz
108kHz-216kHz
54kHz-108kHz
54kHz-108kHz
Sampling Rate
Sampling Rate
32kHz-54kHz
32kHz-54kHz
MCLK
256fs
512fs
N/A
(DFS1-0 = “10”)
Quad Speed
MCLK
128fs
256fs
192fs
N/A
N/A
N/A
[AK4620B]
Default
2005/07