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AK4616VQ Datasheet, PDF (15/46 Pages) Asahi Kasei Microsystems – 24bit 3ch/5ch Audio CODEC with Mic Amplifier | |||
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[AK4616]
åä½èª¬æ
â ã·ã¹ãã ã¯ããã¯
ã¹ã¬ã¼ãã¢ã¼ãæã«å¿
è¦ãªã¯ããã¯ã¯ãMCLK, LRCK, BICK ã§ããMCLKã¨LRCKã¯åæããå¿
è¦ã¯ããã¾
ããä½ç¸ãåãããå¿
è¦ã¯ããã¾ãããé»æºONçã®ãªã»ãã解é¤æ(PDN pin = âââ) ã¯MCLK, LRCK, BICKã
å
¥åãããã¾ã§ãã¯ã¼ãã¦ã³ç¶æ
ã«ãªãã¾ãã
é常åä½æã«ã¯ããã¯ã®ä¾çµ¦ãåæ¢ãã¦å度ã¯ããã¯ãä¾çµ¦ãããå ´åãåºåã«ç°é³ãçºçããå¯è½æ§ãã
ãã¾ãã®ã§ãç°é³ãåé¡ã«ãªãå ´åã¯å¤é¨ã§ãã¥ã¼ããã¦ãã ããã
LRCK
fs
8.0kHz
16.0kHz
32.0kHz
44.1kHz
48.0kHz
256fs
2.0480
4.0960
8.1920
11.2896
12.2880
MCLK (MHz)
384fs
3.0720
6.1440
12.2880
16.9344
18.4320
512fs
4.0960
8.1920
16.3840
22.5792
24.5760
BICK (MHz)
64fs
0.5120
1.0240
2.0480
2.8224
3.0720
Table 1. ã·ã¹ãã ã¯ããã¯ä¾
â å
¥åã»ã¬ã¯ã¿
AK4616ã¯ADCã®4chã¹ãã¬ãªå
¥åã»ã¬ã¯ã¿ãã¢ãã©ã«ADCããã·ã³ã°ã¹ã¤ãããDAC1/2 å
¥åã»ã¬ã¯ã¿ãå
èµãã¾ããADCç¨ã®å
¥åã»ã¬ã¯ã¿ã¯4:1ã§AIN1-0 bits (Table 2)ã§è¨å®ãã¾ããã¢ãã©ã«ADC ã¨ããã·ã³ã°ã¹ã¤
ããã¯MOMIX bit ã§è¨å®ãã¾ã (Table 3)ã ADCã¨ã¢ãã©ã«ADCã®ããã·ã³ã°ä¿¡å·ã0dBãè¶
ããã¨åºåã¯ã
ã«ã¹ã±ã¼ã«ã§ã¯ãªãããã¾ãããã®ã¯ãªããã³ã°ãé¿ããããã«ADCã¾ãã¯ã¢ãã©ã«ADCã®ããªã¥ã¼ã ã調
æ´ãã¦ãã ãããDAC1, DAC2ã®å
¥åã»ã¬ã¯ã¿ã¯DACIN bitã§è¨å®ãã¾ã (Table 4)ã
AIN1 bit
0
0
1
1
AIN0 bit
Input Selector
0
AIN1L /AIN1R
1
AIN2L /AIN2R
0
AIN3L /AIN3R
1
AIN4L /AIN4R
Table 2. ADCå
¥åã»ã¬ã¯ã¿
(default)
MOMIX bit
Monaural ADC mixing
0
Off
(default)
1
On
Table 3. ADC & ã¢ãã©ã«ADC ããã·ã³ã°ã¹ã¤ãã
DACIN bit
Input Selector
0
ADC
1
DOUT L/R
Table 4. DAC1/DAC2 å
¥åã»ã¬ã¯ã¿
(default)
* DACIN bit = â0âã®æãADCã®åºå㯠DACã®ãã£ã¸ã¿ã«å
¥åã«æ¥ç¶ããã¾ãããã®å ´åãSDTI1-2 pinsã®
å
¥åãã¼ã¿ã¯ç¡è¦ããã¾ãã ã«ã¼ãããã¯ã¢ã¼ãã§ã®SDTOãªã¼ãã£ãªãã©ã¼ãããã¯ã«ã¼ãããã¯ã¢
ã¼ã0/1/2/3 ã®æã¢ã¼ã3ã§ãã«ã¼ãããã¯ã¢ã¼ã4ã®æã¢ã¼ã4ã«ãªãã¾ã (Table 5)ã TDM mode ã§ã¯
DACIN bitã â1â ã«è¨å®ãã¦ãã ããã
MS1437-J-01
- 15 -
2012/11
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