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AK4414EQ Datasheet, PDF (20/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
2. Auto Setting Mode (ACKS pin = âHâ)
MCLKå¨æ³¢æ°ã¨ãµã³ããªã³ã°ã¹ãã¼ãã¯èªåæ¤åºããã¾ã(Table 4)ãåã¹ãã¼ãã§ã®MCLKå¨æ³¢æ°ã¯Table 5
ã§ç¤ºãããå¨æ³¢æ°ãå¤é¨ããä¾çµ¦ãã¦ä¸ããã
MCLK
Sampling Speed
1152fs
Normal (fsâ¤32kHz)
512fs
768fs
Normal
256fs
384fs
Double
128fs
192fs
Quad
Table 4. Sampling Speed (Auto Setting Mode @Parallel Mode)
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
MCLK (MHz)
128fs
192fs
256fs
384fs
512fs
768fs
1152fs
N/A
N/A (8.1920*) (12.2880*) 16.3840 24.5760 36.8640
N/A
N/A (11.2896*) (16.9344*) 22.5792 33.8688
N/A
N/A
N/A (12.2880*) (18.4320*) 24.5760 36.8640
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
N/A
N/A
Table 5. System Clock Example (Auto Setting Mode @Parallel Mode) (N/A: Not available)
Sampling
Speed
Normal/
(Double*)
Double
Quad
MCLK= 256fs/384fsã®ã¨ããAuto Setting Modeã¯32kHz~96kHzã®ãµã³ããªã³ã°ã¬ã¼ãã¾ã§å¯¾å¿ãã¾ã(Table 6)ã
ä½ãã32kHz~48kHzã®ãµã³ããªã³ã°ã¬ã¼ãã§ã¯ãMCLK= 256fs/384fsã§ã®DR, S/Nã¯ãMCLK= 512fs/768fsã®æ
ã«æ¯ã¹ã¦3dBç¨åº¦å£åãã¾ãã
ACKS pin
MCLK
DR,S/N
L
256fs/384fs/512fs/768fs
120dB
H
256fs/384fs
117dB
H
512fs/768fs
120dB
Table 6. MCLKå¨æ³¢æ°ã¨DR, S/Nã®é¢ä¿(fs = 44.1kHz)
3. Digital Filter Setting
SD pin
0
0
1
1
SLOW pin
Mode
0
Sharp roll-off filter
1
Slow roll-off filter
0
Short delay sharp roll-off
1
Short delay slow roll-off
Table 7. ãã£ã¸ã¿ã«ãã£ã«ã¿è¨å® (Parallel Mode)
MS1476-J-00
- 20 -
2013/01
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