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AK4634 Datasheet, PDF (54/77 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP | |||
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[AK4634]
Output frequency of BEEP Generator [Hz]
BPFR1-0 bit
fs = 48kHz system
fs = 44.1kHz system
(Note 34)
(Note 35)
00
4000
4009
(default)
01
2000
2005
10
1000
1002
11
N/A
Note 34. Sampling frequency is 8kHz, 16kHz, 32kHz or 48kHz.
Note 35. Sampling frequency is 11.025kHz, 22.05kHz or 44.1kHz.
Table 38. Beep signal frequency (PLL Master/Slave Mode: reference clock: MCKI) (N/A: Not available)
Output frequency of BEEP Generator [Hz]
BPFR1-0 bit FS3-2 bits = â00â FS3-2 bits = â01â FS3-2 bits = â10â
00
fs/2.75
fs/5.5
fs/11
(default)
01
fs/5.5
fs/11
fs/22
10
fs/11
fs/22
fs/44
11
N/A
Table 39. Beep signal frequency ( PLL Slave Mode: reference clock : FCK/BICK) (N/A: Not available)
BPFR1-0 bit
00
01
10
11
Output frequency of BEEP Generator [Hz]
FS1-0 bits = â00â FS1-0 bits = â01â FS1-0 bits = â10â FS1-0 bits = â11â
fs/11
fs/2.75
fs/55
fs/11
fs/22
fs/5.5
fs/11
fs/22
fs/44
fs/11
fs/22
fs/44
N/A
Table 40. Beep signal frequency (EXT Slave/Master Mode) (N/A: Not available)
(default)
ON Time of BEEP Generator [msec]
Step [msec]
BPON7-0 bit
fs = 48kHz
fs = 44.1kHz
fs = 48kHz fs = 44.1kHz
system
system
system
system
(Note 34)
(Note 35)
(Note 34) (Note 35)
0H
8.0
7.98
8.0
7.98
(default)
1H
16.0
15.86
2H
24.0
23.95
3H
32.0
31.93
4H
40.0
39.9
:
:
:
FDH
2032
2027.3
FEH
2040
2035.3
FFH
2048
2043.4
Note 34. Sampling frequency is 8kHz, 16kHz, 32kHz or 48kHz.
Note 35. Sampling frequency is 11.025kHz, 22.05kHz or 44.1kHz.
Table 41. Beep output ON-time (PLL Master/Slave Mode reference clock: MCKI)
Rev. 0.5
- 54 -
2007/10
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