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AK4591VQ Datasheet, PDF (7/41 Pages) Asahi Kasei Microsystems – 入力セレクタ付24bit 4ch ADC + 24bit 6ch DAC | |||
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[AK4591]
ï¼ï¼é»æ°çç¹æ§
(1) ã¢ããã°ç¹æ§
ï¼ç¹è¨ãªãå ´åã¯Ta=25â; AVDD=DVDD=3.3V; VREFH=AVDD; VREFL=AVSS; BITCLK=64fs;
ä¿¡å·å¨æ³¢æ°1kHz; 測å®å¨æ³¢æ°=20Hz~20kHz(@48kHz)ã20Hz~40kHz(@96kHz);
MCLK=12.288MHz(256fs@48kHz)ã24.576MHz(256fs@96kHz); ADCå
¨å·®åå
¥å;
オーï¾ï¾ï½¨ï½µï½²ï¾ï¾ï½°ï¾ï½ªï½°ï½½ï¾ï½«ï½°ï¾ï½¯ï¾å¾è©°ã16Bitsæãããã³BITCLK32fsæã¯é¤ã)
ãã©ã¡ã¼ã¿
min
typ
max
åä½
ADCé¨ å解è½
24
Bits
ãã¤ãããã¯ç¹æ§
S/(N+D)
fs = 48kHz (-1dBFS) (注1)
82
92
dB
fs = 96kHz (-1dBFS) (注1)
88
dB
ï¾ï¾ï½²ï¾
ï¾ï½¯ï½¸ï¾ï¾ï½¼ï¾ fs = 48kHz (Aï¾ï½¨ï¾ï¾) (注1,2)
87
97
dB
fs = 96kHz
(注1,2)
93
dB
S/N
fs = 48kHz (Aï¾ï½¨ï¾ï¾) (注1)
87
97
dB
fs = 96kHz
(注1)
93
dB
ï¾ï½¬ï¾ï¾ï¾éアイソï¾ï½°ï½¼ï½®ï¾
(f=1kHz) (注3)
90
115
dB
DC精度
ï¾ï½¬ï¾ï¾ï¾éï½¹ï¾ï½²ï¾ï¾ï½½ï¾ï½¯ï¾
0.1
0.3
dB
DACé¨
ã¢ããã°å
¥å
å
¥åé»å§ï¼å·®åå
¥åï¼
å
¥åé»å§ï¼ï½¼ï¾ï½¸ï¾ï¾ï½´ï¾ï¾ï¾å
¥åï¼
å
¥åï½²ï¾ï¾ï¾ï½°ï¾ï¾ï¾ï½½
å解è½
(注4)
(注5)
ï¼æ³¨6ï¼
±1.85
1.85
22
±2.00
2.00
33
±2.15
2.15
24
Vp-p
Vp-p
kΩ
Bits
ãã¤ãããã¯ç¹æ§
S/(N+D)
fs = 48kHz (0dBFS)
80
90
dB
fs = 96kHz (0dBFS)
88
dB
ï¾ï¾ï½²ï¾
ï¾ï½¯ï½¸ï¾ï¾ï½¼ï¾ fs = 48kHz (Aï¾ï½¨ï¾ï¾) (注2)
97
107
dB
fs = 96kHz
(注2)
102
dB
S/N
fs = 48kHz (Aï¾ï½¨ï¾ï¾)
97
108
dB
fs = 96kHz
103
dB
ï¾ï½¬ï¾ï¾ï¾éアイソï¾ï½°ï½¼ï½®ï¾
(f=1kHz) (注7)
90
105
dB
DC精度
ï¾ï½¬ï¾ï¾ï¾éï½¹ï¾ï½²ï¾ï¾ï½½ï¾ï½¯ï¾
0.2
0.5
dB
ã¢ããã°åºå
åºåé»å§ (AOUT+)-(AOUT-) ï¼æ³¨8ï¼
3.36
3.66
3.96
Vp-p
è² è·æµæ
5
kΩ
è² è·å®¹é
20
pF
注æ
1ï¼ï½¼ï¾ï½¸ï¾ï¾ï½´ï¾ï¾ï¾å
¥åã®å ´åãç¹æ§ã¯æªããªãã¾ãã
2ï¼-60dBFSã®ä¿¡å·ãå
¥åããã¨ãã®S/(N+D)ã§ãã
3ï¼åå
¥åã»ã¬ã¯ã¿ãã¨ã®L、Rã«å¯¾ãã¦,-1dBFSã®ä¿¡å·ãå
¥åããå ´åã®Lï¼Réã®ï½±ï½²ï½¿ï¾ï½°ï½¼ï½®ï¾ã§ãã
4ï¼å¯¾è±¡ã¨ãªãå
¥åï¾ï¾ï¾ã¯ãAINL1+,AINL1-,AINR1+,AINR1-, AINL2+,AINL2-,AINR2+,AINR2-ã§ãã
å°,å·®åå
¥åé»å§(â³VAIN=(AIN+)-(AIN-))ã®ï¾ï¾ï½½ï½¹ï½°ï¾ã¯(±FS=±(VREFH-VREFL)Ã(2.0/3.3))ã§ãã
5ï¼å¯¾è±¡ã¨ãªãå
¥åï¾ï¾ï¾ã¯ãAINL3~L9,AINR3~R9ã§ãã
å°ãï½¼ï¾ï½¸ï¾ï¾ï½´ï¾ï¾ï¾å
¥åé»å§ã®ï¾ï¾ï½½ï½¹ï½°ï¾ã¯(FS=(VREFH-VREFL)Ã(2.0/3.3))ã§ãã
6ï¼å¯¾è±¡ã¨ãªãå
¥åï¾ï¾ï¾ã¯ãAINL1+,AINL1-,AINR1+,AINR1-,AINL2+,AINL2-,AINR2+,AINR2-,
AINL3~L9,AINR3~R9ã§ãã
7ï¼åDACãã¨ã®L、Rã«å¯¾ãã¦ã0dBFSã®ä¿¡å·ãå
¥åããå ´åã®ãLï¼Réã®ï½±ï½²ï½¿ï¾ï½°ï½¼ï½®ï¾ã§ãã
8ï¼VREFH=AVDD,VREFL=AVSSæã®ï¾ï¾ï½½ï½¹ï½°ï¾åºåé»å§ã
[MS0295-J-01]
-7-
2012/12
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