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AK5730VQ_17 Datasheet, PDF (8/50 Pages) Asahi Kasei Microsystems – 4-Channel Differential Audio ADC for Line & Mic Inputs | |||
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[AK5730]
ã¢ããã°ç¹æ§
(Ta=25ï°C; AVDD=DVDD =3.3V; VSS1=VSS2 =0V; MCLK =512fs, fs=48kHz, BCLK=64fs; Signal Frequency=1kHz;
24bit Data; Measurement frequency=20Hz ï¾ 20kHz; unless otherwise specified; GAIN bit = â0â)
Parameter
min
typ
max
Unit
ADC Analog Characteristics (AC):
Resolution
-
-
24
Bits
Differential (Note 5)
1.55
1.65
1.75
Vrms
Input Voltage Single-ended (Note 6)
0.77
0.82
0.87
Vrms
Gain mode (Note 7)
0.51
0.55
0.59
Vrms
Input Impedance
1.0
1.4
Mï
ï0.5dBFS Differential
86
92
-
dB
S/(N+D)
ï0.5dBFS Single-ended
86
92
-
dB
ï0.5dBFS Gain mode
86
92
-
dB
ï60dBFS, A-weighted Differential
93
100
-
dB
Dynamic Range ï60dBFS, A-weighted Single-ended
92
99
-
dB
ï60dBFS, A-weighted Gain mode
92
98
-
dB
A-weighted Differential
93
100
-
dB
S/N
A-weighted Single-ended
92
99
-
dB
10mVrms input, A-weighted Gain mode
57
63
-
dB
Interchannel Isolation
90
100
-
dB
Interchannel Gain Mismatch
-
0
0.3
dB
1kHz, Differential (Note 8)
70
85
-
dB
20kHz, Differential (Note 8)
70
85
-
dB
CMRR
1kHz, Single-ended (Note 8)
20kHz, Single-ended (Note 8)
65
80
55
65
-
dB
-
dB
1kHz, Gain mode (Note 9)
65
80
-
dB
20kHz, Gain mode (Note 9)
65
80
-
dB
PSRR (1kHz, Note 10)
-
50
-
dB
MIC Power Supply:
MBS3-0 bits= â0000â
4.90
5
5.10
V
MBS3-0 bits= â0001â
5.39
5.5
5.61
V
MBS3-0 bits= â0010â
5.88
6
6.12
V
Output DC Voltage
(Note 11)
MBS3-0 bits= â0011â
MBS3-0 bits= â0100â
MBS3-0 bits= â0101â
6.37
6.5
6.63
V
6.86
7
7.14
V
7.35
7.5
7.65
V
MBS3-0 bits= â0110â
7.84
8
8.16
V
MBS3-0 bits= â0111â
8.33
8.5
8.67
V
MBS3-0 bits= â1000â
8.78
9
9.22
V
Microphone Current (for 4 channels)
0.1
-
40
mA
Output Noise Level (A-weighted)
-
-100
-94
dBV
SAR ADC Characteristics (DC):
Resolution
-
-
12
Bits
Input Voltage (Note 12)
3.2
3.3
3.4
V
Integral Nonlinearity (INL) Error
-4
-
+5
LSB
Differential Nonlinearity (DNL) Error
-2
-
+2
LSB
Note 5. IN*P pin 㨠IN*N pinã®é»ä½å·®ã§ã(*=1~4)ã å
¥åé»å§ã¯AVDDã«æ¯ä¾ããå¤ä»ãã®æµæã§èª¿ç¯ã§ãã¾
ããVin = 0.5 Ã AVDD Vrms (typ).
Note 6.ã·ã³ã°ã«ã¨ã³ãå
¥åæã¯IN*P pin 㨠IN*N pin ã¯ã³ã¢ã³é»å§ã«æ¥ç¶ãã¦ãã ãããå
¥åé»å§ã¯å¤ä»ãã®
æµæã§èª¿ç¯ã§ãã¾ããSTD* bit = â1âã®æãå
¥åé»å§ã¯AVDDã«æ¯ä¾ãã¾ãã
Vin = 0.25 Ã AVDD Vrms (typ).
Note 7. IN*P pin 㨠IN*N pin ã®é»ä½å·®ã§ããå
¥åé»å§ã¯å¤ä»ãã®æµæã§èª¿ç¯ã§ãã¾ãã
GAIN* bit = â1âã®æãå
¥åé»å§ = 0.55Vrms = 0.167 à AVDD Vrms (typ)ã§ãã
Note 8. 1kHz, 1.0Vpp ã®ä¿¡å·ãåä½ç¸ã§IN*N pin 㨠IN*P pin ã«å
¥åããæã®å¤ã§ãã
CMRR ã¯æ¸è¡°ã¬ãã«ã0dB = -7.5dBFS ã¨ãã¦è¨ç®ããã¾ãã(1Vpp= -7.5dBFS).
MS1577-J-03
-8-
2015/11
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