|
AK5701KN_17 Datasheet, PDF (29/64 Pages) Asahi Kasei Microsystems – PLL & MIC-AMP内蔵16-Bit Stereo ADC | |||
|
◁ |
[AK5701]
â ãªã¼ãã£ãªã¤ã³ã¿ãã§ã¼ã¹ãã©ã¼ããã
4種é¡ã®ãã¼ã¿ãã©ã¼ããã(Table 15)ãDIF1-0 bitã§é¸æã§ãã¾ããå
¨ã¢ã¼ãã¨ãMSBãã¡ã¼ã¹ãã2âsã³ã³ã
ãªã¡ã³ãã®ãã¼ã¿ãã©ã¼ãããã§ãããªã¼ãã£ãªã¤ã³ã¿ãã§ã¼ã¹ã¯ãã¹ã¿ã¢ã¼ãã¨ã¹ã¬ã¼ãã¢ã¼ãã«å¯¾å¿ã
ã¾ãããã ããDSP Mode 1ã¯PLL Master Modeã®ã¿å¯¾å¿ãã¾ãããã¹ã¿ã¢ã¼ãã§ã¯LRCK, BCLK, SDTOã使ç¨
ããã¹ã¬ã¼ãã¢ã¼ãã§ã¯EXLRCK, EXBCLK, SDTOã使ç¨ãã¾ããMode 2ã¨Mode 3ã§ã¯SDTOã¯
BCLK/EXBCLKã® âï¯âã§åºåããã¾ãã
Mode
0
1
2
3
DIF1 bit
0
0
1
1
DIF0 bit
0
1
0
1
SDTO
BCLK, EXBCLK
DSP Mode 0
32fs
DSP Mode 1
åè©°ã
I2Säºæ
ï³ 32fs
ï³ 32fs
ï³ 32fs
Table 15. Audio Interface Format
Figure
See Table 16
Figure 34
Figure 35 (default)
Mode 0, 1 (DSPã¢ã¼ã0, 1)ã§ã¯ãBCKP, MSBS bitã«ããããªã¼ãã£ãªI/Fã®ã¿ã¤ãã³ã°ãå¤æ´ãããã¨ãã§ã
ã¾ãã
BCKP bit = â0âã®å ´åãSDTOã¯BCLK/EXBCLKã® âïâã§åºåããã¾ãã
BCKP bit = â1âã®å ´åãSDTOã¯BCLK/EXBCLKã® âï¯âã§åºåããã¾ãã
MSBS bitã¯ãMSBãã¼ã¿ã®ä½ç½®ãBCLK/EXBCLKã®åå¨æåã·ãããããã¨ãã§ãã¾ãã
DIF1
0
0
DIF0
0
1
MSBS
0
0
1
1
0
0
1
1
BCKP
Audio Interface Format
0
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
BCLK/EXBCLK âïâã§åºåããã¾ãã(Figure 26)
1
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
BCLK/EXBCLK âï¯âã§åºåããã¾ãã(Figure 27)
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
0 BCLK/EXBCLK âï¯â ã®æ¬¡ã®BCLK/EXBCLK âïâã§åºåããã¾
ãã(Figure 28)
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
1 BCLK/EXBCLK âïâ ã®æ¬¡ã®BCLK/EXBCLK âï¯âã§åºåããã¾
ãã(Figure 29)
0
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
BCLK/EXBCLK âïâã§åºåããã¾ãã(Figure 30)
1
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
BCLK/EXBCLK âï¯âã§åºåããã¾ãã(Figure 31)
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
0 BCLK/EXBCLK âï¯â ã®æ¬¡ã®BCLK/EXBCLK âïâã§åºåããã¾
ãã(Figure 32)
SDTOã®MSBãã¼ã¿ã¯LRCK/EXLRCK âïâå¾ã®1åç®ã®
1 BCLK/EXBCLK âïâ ã®æ¬¡ã®BCLK/EXBCLK âï¯âã§åºåããã¾
ãã(Figure 33)
Table 16. Audio Interface Format in Mode 0, 1
(default)
ADCããåºåããã16bitãã¼ã¿ã8bitãã¼ã¿ã¸å¤æãä¿åããå ´åã16bitãã¼ã¿ãåç´ã«åãæ¨ã¦ãã¨ã16bit
ãã¼ã¿ã® âï1âã¯8bitãã¼ã¿ã§ âï1âã«å¤æããã¾ãããã®8bitãã¼ã¿ã® âï1âãDACã«ã¦åçãããã16bitãã¼
ã¿ã«åå¤æãã㨠ââ256âã¨ãªã大ããªãã¤ãºã«ãªãã¾ãã8bitãã¼ã¿ã¸å¤æããåã«ã16bitãã¼ã¿ã«ãªãã»
ãã(128)ãå ç®ãããã¨ãæ¨å¥¨ãã¾ãã
MS0404-J-04
- 29 -
2015/10
|
▷ |