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AK4414EQ Datasheet, PDF (8/51 Pages) Asahi Kasei Microsystems – High Performance 120dB 32-Bit 4ch DAC | |||
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[AK4414]
ã¢ããã°ç¹æ§
(Ta=25°C; AVDD=DVDD=3.0V, VDD1/2=5.0V; AVSS=VSS1/2=DVSS=0V; VREFH1/2=VDD1/2, VREFL1/2=
AVSS; Input data = 24bit; RL ⥠1kΩ; BICK=64fs; Signal Frequency = 1kHz; Sampling Frequency = 44.1kHz;
Measurement bandwidth = 20Hz ~ 20kHz; External Circuit: Figure 27; unless otherwise specified.)
Parameter
min
typ
max
Unit
Resolution
-
-
24
Bits
Dynamic Characteristics (Note 5)
THD+N
fs=44.1kHz
BW=20kHz
0dBFS
â60dBFS
-
-107
-98
dB
-
-57
-
dB
fs=96kHz
0dBFS
-
-104
-
dB
BW=40kHz â60dBFS
-
-54
-
dB
fs=192kHz
BW=40kHz
0dBFS
â60dBFS
-104
-
dB
-54
-
dB
BW=80kHz â60dBFS
-51
-
dB
Dynamic Range (â60dBFS with A-weighted)
(Note 6)
113
120
dB
S/N (A-weighted)
(Note 7)
113
120
dB
Interchannel Isolation (1kHz)
100
110
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Capacitance
Load Resistance
-
0.15
0.3
dB
(Note 8)
-
20
-
ppm/°C
(Note 9)
±2.65
±2.8
±2.95
Vpp
-
-
10
pF
(Note 10)
1
-
-
kΩ
Power Supplies
Power Supply Current
Normal operation (PDN pin = âHâ)
VDD1+VDD2
-
AVDD
-
DVDD (fs ⤠44.1kHz)
-
DVDD (fs=96kHz)
DVDD (fs = 192kHz)
-
Power down (PDN pin = âLâ)
(Note 11)
AVDD+VDD1/2+DVDD
-
41
60
mA
1
1.5
mA
7
11
mA
12
18
mA
18
27
mA
1
100
μA
Note 5. Audio Precision System Two使ç¨ãå¹³åå¤æ¸¬å®ã測å®çµæã¯è©ä¾¡ãã¼ãããã¥ã¢ã«ãåç
§ä¸ããã
Note 6. Figure 27 (åè·¯ä¾2)使ç¨æã 100dB at 16bit data.
Note 7. Figure 27 (åè·¯ä¾2)使ç¨æã S/Næ¯ã¯å
¥åãããé·ã«ä¾åãã¾ããã
Note 8. (VREFH â VREFL)ã®é»å§ã¯+5Vä¸å®ã
Note 9. ãã«ã¹ã±ã¼ã«é»å§(0dB)ãåºåé»å§ã¯(VREFH1/2 â VREFL1/2)ã®é»å§ã«æ¯ä¾ãã¾ãã
AOUT (typ.@0dB) = (AOUT+) â (AOUTâ) = ±2.8Vpp à (VREFH1/2 â VREFL1/2)/5.
Note 10. Load Resistanceã«ã¤ãã¦ã¯ãACè² è·(DCã«ããç¨ã³ã³ãã³ãµãã)ã«å¯¾ãã¦1kΩ (min)ã§ããFigure 27ãåç
§ã
ã¦ãã ãããDCè² è·(DCã«ããç¨ã³ã³ãã³ãµãªã)ã«å¯¾ãã¦1.5kΩ (min)ã§ããFigure 26ãåç
§ãã¦ãã ããã
Load Resistanceã¯ã°ã©ã³ãã«å¯¾ããå¤ã§ããã¢ããã°ç¹æ§ã¯åºåãã³ã«æ¥ç¶ããã容éæ§è² è·ã«ææãªããã
容éæ§è² è·ã極åå°ãããªãããã«ãã¦ãã ããã
Note 11. ãã¯ã¼ãã¦ã³æãPSN pin = DVDDããã以å¤ã®å¤é¨ã¯ããã¯(MCLK, BICK, LRCK)ãå«ã
å
¨ã¦ã®ãã£ã¸ã¿ã«å
¥åãDVSSã«åºå®ããå ´åã®å¤ã§ãã
MS1476-J-00
-8-
2013/01
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