AK5357_09 Datasheet, PDF (5/20 Pages) Asahi Kasei Microsystems – 24Bit 96kHz ΔΣ ADC

[AK5357]
ANALOG CHARACTERISTICS
(Ta=25°C; VA=VD=5.0V; AGND=DGND=0V; fs=48kHz, 96kHz; SCLK=64fs; Signal Frequency=1kHz; 24bit Data;
Measurement frequency=20Hz ∼ 20kHz at fs=48kHz, 40Hz ∼ 40kHz at fs=96kHz; unless otherwise specified)
Parameter
min
typ
max
Units
ADC Analog Input Characteristics:
Resolution
24
Bits
Input Voltage (Note 4)
VA=5V
fs=48kHz
AK5357ET
AK5357VT
fs=96kHz
2.7
2.85
3.0
3.0
3.3
3.15
Vpp
Vpp
2.7
3.0
3.3
VA=3V
-
1.8
-
Vpp
S/(N+D) (−1dBFS) VA=5V fs=48kHz
78
88
dB
fs=96kHz
-
86
dB
VA=3V fs=48kHz
-
86
dB
fs=96kHz
-
84
dB
DR
(−60dBFS) VA=5V fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
97
dB
VA=3V fs=48kHz, A-weighted
-
100
dB
fs=96kHz
-
95
dB
S/N
VA=5V fs=48kHz, A-weighted
94
102
dB
fs=96kHz
88
97
dB
VA=3V fs=48kHz, A-weighted
-
100
dB
fs=96kHz
-
95
dB
Input Resistance
fs=48kHz
13
20
kΩ
fs=96kHz
9
14
kΩ
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0.1
0.5
dB
Gain Drift
100
-
ppm/°C
Power Supply Rejection
(Note 5)
-
50
dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
VA
11
17
mA
VD
(fs=48kHz)
(Note 6)
3
5
mA
VD
(fs=96kHz)
(Note 7)
6
9
mA
Power down mode (PDN pin = “L”)
(Note 8)
VA+VD
10
100
μA
Note 4. This value is the full scale (0dB) of the input voltage. Input voltage is proportional to VA voltage.
Vin = 0.6 x VA (Vpp).
Note 5. PSR is applied to VA and VD with 1kHz, 50mVpp.
Note 6. VD=2mA@3V
Note 7. VD=4mA@3V
Note 8. All digital input pins are held VD or DGND.
MS0294-E-03
-5-
2009/03