AK5367A Просмотр технического описания (PDF) - Asahi Kasei Microdevices
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AK5367A Datasheet PDF : 28 Pages
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[AK5367A]
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 RL
(Note 6)
15
kΩ
Load Capacitance CL
(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 RL and CL are load resistance and capacitance that the LOUT and ROUT pins can drive. RL does not
include the feedback resistor (Rf) and the input impedance of the LISEL/RISEL pins. The value of CL does not
include the internal impedance of the AK5367A.
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.
MS0967-E-00
-7-
2008/05
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