|
AK4413EQ Datasheet, PDF (22/48 Pages) Asahi Kasei Microsystems – High Performance 120dB 24-Bit 4ch DAC | |||
|
◁ |
[AK4413]
â ãªã¼ãã£ãªã¤ã³ã¿ãã§ã¼ã¹ãã©ã¼ããã
[1] PCM mode
(1) Parallel Control Mode (PSN pin = âHâ)
ãã©ã¬ã«ã³ã³ããã¼ã«ã¢ã¼ãã§ã¯20é¡ã®ãã©ã¼ããã (Table 13) ã DIF2-0pin 㨠TDM1-0 pinã§é¸æã§ãã¾ãã
ãã©ã¬ã«ã³ã³ããã¼ã«ã¢ã¼ãæã®ã¬ã¸ã¹ã¿è¨å®ã¯ç¡å¹ã§ããå
¨ã¢ã¼ãã¨ã MSB ãã¡ã¼ã¹ãã2âs Complement
ã®ãã¼ã¿ãã©ã¼ããã㧠BICK ã®ç«ã¡ä¸ããã§ã©ããããã¾ããMode 2 ã 16/20ãããã§ä½¿ã£ãå ´åã¯ãã¼
ã¿ã®ãªãLSB ã«ã¯ â0â ãå
¥åãã¦ä¸ããã
ãã©ã¬ã«ã³ã³ããã¼ã«ã¢ã¼ãæãTDM1 pinã âLâ, TDM0 pin ãâHâã«è¨å®ããã¨ããªã¼ãã£ãªI/Fã¯TDM256
ã¢ã¼ã (Table 13)ã«ãªããSDTI1 pinã«å
¨8chã®DACãã¼ã¿ãå
¥åãã¾ããSDTI2ã¸ã®å
¥åãã¼ã¿ã¯ç¡è¦ããã¾
ããBICKã¯256fsåºå®ãLRCKã® âHâå¹
ã âLâå¹
ã¯1/256fs(min)ã§ãããã¼ã¿ãã©ã¼ãããã¯MSBãã¡ã¼ã¹ãã
2âs complementã§ãSDTI1ã¯BICKã®ç«ã¡ä¸ããã§ã©ããããã¾ããDACãã¼ã¿ã¯æåã®4ãã£ã³ãã«ã®ã¿é¸æ
ãããã¢ããã°åºåã«å¤æããã¾ãã
TDM1-0 pins = âHHâ ã«è¨å®ããã¨ããªã¼ãã£ãªI/Fã¯TDM128ã¢ã¼ãã«ãªã(Table 13)ãSDTI1 pinã«4chã®DAC
ãã¼ã¿(L1, R1, L2, R2) ãå
¥åãã¾ãã
Mode
0
1
2
3
Normal
4
5
6
7
8
9
TDM256
10
11
12
13
14
15
TDM128
16
17
18
19
TDM1 TDM0 DIF2 DIF1 DIF0 SDTI Format
0
0
0 16-bit LSB justified
0
0
1 20-bit LSB justified
0
1
0 24-bit MSB justified
0
1
1 24-bit I2S compatible
-
0
1
0
0 24-bit LSB justified
1
0
1 32-bit LSB justified
1
1
0 32-bit MSB justified
1
1
1 32-bit I2S compatible
0
0
0 N/A
0
0
1 N/A
0
1
0 24-bit MSB justified
0
1
1 24-bit I2S compatible
0
1
1
0
0 24-bit LSB justified
1
0
1 32-bit LSB justified
1
1
0 32-bit MSB justified
1
1
1 32-bit I2S compatible
0
0
0 N/A
0
0
1 N/A
0
1
0 24-bit MSB justified
0
1
1 24-bit I2S compatible
1
1
1
0
0 24-bit LSB justified
1
0
1 32-bit LSB justified
1
1
0 32-bit MSB justified
1
1
1 32-bit I2S compatible
Table 13. ãªã¼ãã£ãªI/Fãã©ã¼ããã (Parallel mode)
LRCK
H/L
H/L
H/L
L/H
H/L
H/L
H/L
L/H
BICK
â¥32fs
â¥40fs
â¥48fs
â¥48fs
â¥48fs
â¥64fs
â¥64fs
â¥64fs
â 256fs
â 256fs
â 256fs
â 256fs
â 256fs
â 256fs
â 128fs
â 128fs
â 128fs
â 128fs
â 128fs
â 128fs
MS1495-J-00
- 22 -
2013/01
|
▷ |