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AK4495SEQ Datasheet, PDF (10/58 Pages) Asahi Kasei Microsystems – Quality-oriented Premium 32-Bit 2ch DAC | |||
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[AK4495S]
â ã¢ããã°ç¹æ§
8. é»æ°çç¹æ§
(Ta=25ï°C; AVDD=DVDD=3.3V; AVSS=DVSS=VSSL/R=0V; VREFHL/R=VDDL/R=5V, VREFLL/R=
VSSL/R=0V; Input data = 24bit; RL ï³ 1kï; BICK=64fs; Signal Frequency = 1kHz; Sampling Frequency =
44.1kHz; Measurement bandwidth = 20Hz ~ 20kHz; External Circuit: Figure 31; unless otherwise specified.)
Parameter
min
typ
max Unit
Resolution
-
-
32
Bits
Dynamic Characteristics (Note 5)
THD+N
fs=44.1kHz 0dBFS
-
BW=20kHz ï60dBFS
-
fs=96kHz
0dBFS
-
BW=40kHz ï60dBFS
-
fs=192kHz 0dBFS
-
BW=40kHz ï60dBFS
-
BW=80kHz ï60dBFS
-
Dynamic Range (ï60dBFS with A-weighted)
(Note 6)
114
S/N (A-weighted)
(Note 7)
114
S/N (A-weighted, VDDL/R=7.0V)
100
S/N (Mono mode, A-weighted, VDDL/R=7.0V)
100
Interchannel Isolation (1kHz)
110
-101
-93
dB
-57
-47
dB
-98
-88
dB
-54
-44
dB
-98
-88
dB
-54
-44
dB
-51
-41
dB
120
-
dB
120
-
dB
123
-
dB
126
-
dB
120
-
dB
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Capacitance
Load Resistance
(Note 8)
(Note 9)
(Note 10)
-
-
ï±2.65
-
1
0.15
0.3
dB
-
20 ppm/ï°C
ï±2.8
ï±2.95 Vpp
-
25
pF
-
-
kï
Power Supplies
Power Supply Current
Normal operation (PDN pin = âHâ)
VDDL/R
-
33
42
mA
AVDD
-
1
2
mA
DVDD (fs= 44.1kHz)
-
8
12
mA
DVDD (fs= 96kHz)
-
14
20
mA
DVDD (fs = 192kHz)
-
15
23
mA
Power down (PDN pin = âLâ)
(Note 11)
AVDD+VDDL/R+DVDD
-
10
100
ïA
Note 5. Audio Precision System Two使ç¨ãå¹³åå¤æ¸¬å®ã測å®çµæã¯è©ä¾¡ãã¼ãããã¥ã¢ã«ãåç
§ä¸ããã
SC2:SC1:SC0 bit = 0:1:0ã®ã¨ãã
Note 6. Figure 31 (åè·¯ä¾2)使ç¨æã 101dB at 16bit data and 118dB at 20bit data.
Note 7. Figure 31 (åè·¯ä¾2)使ç¨æã S/Næ¯ã¯å
¥åãããé·ã«ä¾åãã¾ããã
Note 8. (VREFH ï VREFL)ã®é»å§ã¯+5Vä¸å®ã
Note 9. ãã«ã¹ã±ã¼ã«é»å§(0dB)ãåºåé»å§ã¯(VREFHL/R ï VREFLL/R)ã®é»å§ã«æ¯ä¾ãã¾ãã
AOUT (typ.@0dB) = (AOUT+) ï (AOUTï) = ï±2.8Vpp ï´ (VREFHL/R ï VREFLL/R)/5.
Note 10. Load Resistanceã«ã¤ãã¦ã¯ãACè² è·(DCã«ããç¨ã³ã³ãã³ãµãã)ã«å¯¾ãã¦1k ohm (min)ã§ããFigure 31
ãåç
§ãã¦ãã ãããDCè² è·(DCã«ããç¨ã³ã³ãã³ãµãªã)ã«å¯¾ãã¦1.5k ohm (min)ã§ããFigure 30ãåç
§
ãã¦ãã ãããLoad Resistanceã¯ã°ã©ã³ãã«å¯¾ããå¤ã§ããã¢ããã°ç¹æ§ã¯åºåãã³ã«æ¥ç¶ããã容é
æ§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
MS1560-J-01
- 10 -
2013/11
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