AK5381 Datasheet, PDF (5/20 Pages) Asahi Kasei Microsystems – 24Bit 96kHz ΔΣ ADC

ASAHI KASEI
[AK5381]
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
Input Voltage
(Note 4)
2.7
S/(N+D)
(−1dBFS)
fs=48kHz
88
fs=96kHz
82
DR
(−60dBFS)
fs=48kHz, A-weighted
100
fs=96kHz
94
S/N
fs=48kHz, A-weighted
100
fs=96kHz
94
Input Resistance
fs=48kHz
10
fs=96kHz
6
Interchannel Isolation
90
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection
(Note 5)
24
Bits
3.0
3.3
Vpp
96
dB
90
dB
106
dB
102
dB
106
dB
102
dB
15
kΩ
9
kΩ
110
dB
0.1
0.5
dB
100
150
ppm/°C
50
-
dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
VA
16
24
mA
VD
(fs=48kHz)
8
12
mA
VD
(fs=96kHz)
14
21
mA
Power down mode (PDN pin = “L”)
VA+VD
(Note 6)
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. All digital input pins are held VD or DGND.
MS0200-E-02
-5-
2006/01