AKD4589 Datasheet, PDF (5/51 Pages) Asahi Kasei Microsystems – AK4589 Evaluation Board Rev.2

ASAHI KASEI
[AKD4589-B]
„ Setting of DIP-Switch
[SW2]: Setting of AK4589 (SW2:No.2~6 is ON: 1(H), OFF:0(L))
No. Pin
OFF
ON
Default
1
-
-
-
OFF
2 MASTER
Slave Mode
Master Mode
3
XTL1
Detection of Sampling frequency (Refer Table 4,5)
4 XTL0
ON(1,H)
ON(1,H)
ON(1,H)
5 CAD1
Setting of Chip Address (ADC/DAC PART)
OFF(0,L)
6 CAD0
Setting of Chip Address (ADC/DAC PART)
ON(1,H)
Table 2. Setting of SW2
(Note) Chip Address of ADC/DAC is fixed,CAD1,CAD0 is 0(L),1(H). (CAD10=01)
Therefore setting of CAD1,CAD0 is fixed, CAD1,CAD0 is OFF(0,L),ON(1,H).
„ Sampling frequency as follows
AK4589 has two methods for detecting the sampling frequency. Clock is compared between recovered clock and X’tal
oscillator by XTL1-0. This information outputs FS0, FS1, and FS2, FS3 bit for detecting the sampling frequency.
The compared X’tal frequency is selected by setting of XTL1-0 (Refer Table 4.) When XTL1-0 is ON(1,H),ON(1,H),
X’tal oscillator is stopped and the encored sampling frequency information of channel status output FS0, FS1, FS2, FS3,
PEM bit of resister control.
XTL1
OFF(0,L)
OFF(0,L)
ON(1,H)
ON(1,H)
XTL0
X’tal Frequency
OFF(0,L)
11.2896MHz
ON(1,H)
12.288MHz
OFF(0,L)
24.576MHz
ON(1,H) (use channel status)
Table 3. Reference X’tal frequency
Default
Except XTL1,0= “1,1”
XTL1, 0= “1,1”
Register output
fs
FS3 FS2 FS1 FS0
Clock comparison
(Note 1)
Consumer
mode
(Note 2)
Byte3
Bit3, 2,1,0
Professional mode
Byte0 Bit7, Byte4 Bit6,
6
5,4,3
0
0
00
44.1kHz
0
0
01
Reserved
0
0
10
48kHz
0
0
11
32kHz
1
0
00
88.2kHz
1
0
10
96kHz
1
1
0 0 176.4kHz
1
1
10
192kHz
44.1kHz
Reserved
48kHz
32kHz
88.2kHz
96kHz
176.4kHz
192kHz
0000
0001
0010
0011
(1000)
(1010)
(1100)
(1110)
01
0000
(Others)
10
0000
11
0000
00
1010
00
0010
00
1011
00
0011
Note1: At least ±3% range is identified as the value in the Table 4. In case of intermediate frequency of those two, FS3-0
bits indicate nearer value. When the frequency is much bigger than 192kHz or much smaller than 32kHz, FS3-0
bits may indicate “0001”.
Note2: When consumer mode, Byte3 Bit3-0 are copied to FS3-0 bits.
Table 4. Sampling frequency information
<KM076201>
-5-
2005/07