參數(shù)資料
型號(hào): AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述: 16位單聲道編解碼器ALC的
文件頁數(shù): 27/69頁
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 27 -
EXT Slave Mode (PMPLL bit = “0”, M/S bit = “0”)
PMPLL bit
“0”
ADC, DAC
(EXT Mode)
MCKI pin
CODEC
PLL
I/F
MCKI
MCKI (256fs, 512fs or 1024fs), BICK (
32fs), FCK(fs)
FCK
MCKI
FS3-0 bit
See Table 10
Mode
FS3-2 bits
FS1 bit
FS0 bit
MCKI Input
Frequency
256fs
1024fs
256fs
512fs
Sampling Frequency
Range
7.35kHz
fs
48kHz
7.35kHz < fs
13kHz
7.35kHz < fs
48kHz
7.35kHz < fs
26kHz
MCKI
0
1
2
3
Don’t care
Don’t care
Don’t care
Don’t care
Table 10. EXT Slave Mode (PMPLL bit = “0”, M/S bit = “0”)
0
0
1
1
0
1
0
1
Default
EXT Slave Mode
Mode 0
DAC
S/N
MCKI
AOUT
S/N
Table 11
DAC
S/N
MCKI
S/N
(fs=8kHz, 20kHzLPF +
A-weighted)
83dB
93dB
93dB
256fs
512fs
1024fs
Table 11. Relationship between MCKI and S/N of AOUT
ADC or DAC
PMADC bit = “1” or PMDAC bit = “1”
(MCKI, BICK, FCK)
PMADC bit
= PMDAC bit = “0”
AK4631
DSP or
μ
P
MCKI
BICK
FCK
SDTO
SDTI
BCLK
FCK
SDTI
SDTO
MCKO
1fs
32fs, 64fs
MCLK
256fs, 512fs or 1024fs
Figure 21. EXT Slave Mode
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