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AK4414EQ Datasheet, PDF (21/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
(2) ã·ãªã¢ã«ã¢ã¼ã (PSN pin = âLâ)
1. Manual Setting Mode (ACKS bit = â0â)
MCLKå¨æ³¢æ°ã¯èªåè¨å®ããã¾ãããDFS1-0 bitã§ãµã³ããªã³ã°ã¹ãã¼ããè¨å®ãã¾ã(Table 8)ãåã¹ãã¼ã
ã§ã®MCLKå¨æ³¢æ°ã¯Table 9ã§ç¤ºãããå¨æ³¢æ°ãå¤é¨ããä¾çµ¦ãã¦ä¸ããããã¯ã¼ãã¦ã³è§£é¤æ(PDN pin = âLâ
â âHâ)ã¯Manual Setting Modeã«è¨å®ããã¾ããDFS1-0 bitãåãæ¿ããå ´åã¯RSTN bitã§ãªã»ãããã¦ä¸ããã
DFS1 bit DFS0 bit
Sampling Rate (fs)
0
0
Normal Speed Mode 30kHz â¼ 54kHz (default)
0
1
Double Speed Mode 54kHz â¼ 108kHz
1
0
Quad Speed Mode 120kHz â¼ 216kHz
Table 8. Sampling Speed (Manual Setting Mode @Serial 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
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
N/A
N/A
Table 9. System Clock Example (Manual Setting Mode @Serial Mode)
BICK
64fs
2.0480MHz
2.8224MHz
3.0720MHz
5.6448MHz
6.1440MHz
11.2896MHz
12.2880MHz
2. Auto Setting Mode (ACKS bit = â1â)
MCLKå¨æ³¢æ°ã¨ãµã³ããªã³ã°ã¹ãã¼ãã¯èªåæ¤åº(Table 10)ããããããDFS1-0 bitã®è¨å®ã¯ä¸è¦ã§ããåã¹ã
ã¼ãã§ã®MCLKå¨æ³¢æ°ã¯Table 11ã§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 10. Sampling Speed (Auto Setting Mode @Serial 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 11. System Clock Example (Auto Setting Mode @Serial Mode)
Sampling
Speed
Normal/
(Double*)
Double
Quad
MS1476-J-00
- 21 -
2013/01
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