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AK5385AVS Datasheet, PDF (8/24 Pages) Asahi Kasei Microsystems – 24Bit 192kHz DS ADC | |||
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ASAHI KASEI
[AK5385A]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=5.0V, DVDD=3.3V; AVSS=BVSS=DVSS=0V; VREFL=VREFR=AVDD; fs=48kHz, 96kHz,
192kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Data; Measurement frequency=20Hz â¼ 20kHz at fs=48kHz,
40Hz â¼ 40kHz at fs=96kHz, 40Hz â¼ 40kHz at fs=192kHz; unless otherwise specified)
Parameter
min
typ
max
Units
Analog Input Characteristics:
Resolution
Input Voltage
(Note 4)
±2.7
S/(N+D)
â1dBFS (Note 5)
-
fs=48kHz
â1dBFS
92
BW=20kHz â20dBFS
-
â60dBFS
-
fs=96kHz
BW=40kHz
â1dBFS
â20dBFS
â60dBFS
90
-
-
fs=192kHz
BW=40kHz
â1dBFS
â20dBFS
â60dBFS
-
-
-
Dynamic Range
(â60dBFS with A-weighted)
107
S/N
(A-weighted)
107
Input Resistance
9
Interchannel Isolation
100
Interchannel Gain Mismatch
Power Supply Rejection
(Note 6)
24
Bits
±2.9
±3.1
Vpp
103
dB
100
dB
91
dB
51
dB
98
dB
86
dB
46
dB
98
dB
86
dB
46
dB
114
dB
114
dB
13
kâ¦
120
dB
0.1
0.5
dB
50
-
dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = âHâ)
AVDD
30
45
mA
DVDD
(fs=48kHz)
10
15
mA
DVDD
(fs=96kHz)
17
25
mA
DVDD
(fs=192kHz)
20
30
mA
Power down mode (PDN pin = âLâ)
AVDD+DVDD
(Note 7)
10
100
µA
Note 4. This value is (LIN+)â(LINâ) and (RIN+)â(RINâ). Input voltage is proportional to VREF voltage.
Vin = 0.58 x VREF (Vpp).
Note 5. 100µF capacitors are connected between the VREFL/R pins and AVSS.
Note 6. PSR is applied to AVDD and DVDD with 1kHz, 20mVpp. The VREFL and VREFR pins held a constant voltage.
Note 7. All digital input pins are held DVDD or DVSS.
MS0265-E-01
-8-
2003/11
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