AK5367 Datasheet, PDF (7/28 Pages) Asahi Kasei Microsystems – 96kHz 24-Bit ΔΣ ADC with 0V Bias Selector

[AK5367]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=5.0V, DVDD=CVDD=3.3V; VSS1=VSS2=0V; fs=48kHz,96kHz; BICK=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
Pre-Amp Characteristics:
Feedback Resistance
10
50
kΩ
S/(N+D)
(Note 5)
-
100
dB
S/N (A-weighted)
(Note 5)
-
108
dB
Load Resistance R_L
(Note 6)
15
kΩ
Load Capacitance C_L
(Note 6)
20
pF
ADC Analog Input Characteristics: (Note 7)
Resolution
Input Voltage
(Note 8)
2.7
S/(N+D)
fs=48kHz
−1dBFS
82
BW=20kHz
−60dBFS
-
fs=96kHz
−1dBFS
-
BW=40kHz
−60dBFS
-
DR
(−60dBFS, A-weighted)
94
S/N
(A-weighted)
94
24
Bits
3.0
3.3
Vpp
90
dB
39
dB
90
dB
37
dB
102
dB
102
dB
Interchannel Isolation (fs=48kHz)
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection
(Note 9)
85
(Note 10)
-
96
dB
0.1
0.5
dB
100
-
ppm/°C
50
dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
AVDD
15.5
23
mA
CVDD
2.5
4
mA
DVDD
(fs=48kHz)
2
3
mA
DVDD
(fs=96kHz)
4
6
mA
Power down mode (PDN pin = “L”)
(Note 11)
AVDD+DVDD
10
100
μA
Note 5. This value is measured at LOUT and ROUT pins using Ri= 47kΩ, Rf= 24 kΩ when the input signal voltage is
2Vrms.
Note 6. This value of R_L and C_L are load resistance and capacitance that the LOUT and ROUT pins can drive. R_L does not
include the feedback resistor (Rf) and the input impedance of the LISEL/RISEL pins. The value of C_L does not
include the internal impedance of the AK5367.
Note 7. This value is measured via the following path. Pre-Amp → ADC.(Ri= 47kΩ, Rf= 24 kΩ)
Note 8. Input voltage to LISEL and RISEL pins is proportional to AVDD voltage. typ. Vin = 0.6 x AVDD (Vpp)
Note 9. 93dB(typ.) at fs=96kHz.
Note 10. PSR is applied to AVDD and DVDD with 1kHz, 50mVpp Sine wave.
Note 11. All digital input pins are held DVDD or VSS2.
MS0694-E-00
-7-
2007/12