
ASAHI KASEI
[AK4524]
M0050-E-01
1999/5
- 6 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; VA, VD, VT=5.0V; AGND=DGND=0V; VREF=VA; fs=44.1kHz; Signal Frequency =1kHz; 24bit Data;
Measurement frequency = 10Hz
~
20kHz at fs=44.1kHz, 10Hz
~
40kHz at fs=96kHz; unless otherwise specified)
Parameter
Input PGA Characteristics:
Input Voltage (Note 3)
Input Resistance
Step Size
Gain Control Range
ADC Analog Input Characteristics: IPGA=0dB
Resolution
S/(N+D) (-0.5dBFS)
fs=44.1kHz
fs=96kHz
min
typ
max
Units
2.7
5
0.2
0
2.9
10
0.5
3.1
15
0.8
18
Vpp
k
W
dB
dB
24
Bits
dB
dB
84
80
90
88
DR (-60dBFS)
fs=44.1kHz, A-weighted
fs=96kHz
fs=44.1kHz, A-weighted
fs=96kHz
94
88
94
88
90
100
96
100
96
105
0.2
20
50
dB
dB
dB
dB
dB
dB
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection (Note 4)
DAC Analog Output Characteristics:
Resolution
S/(N+D) (0dBFS)
0.5
-
-
ppm/
°
C
dB
24
Bits
dB
dB
dB
dB
dB
dB
dB
dB
ppm/
°
C
Vpp
k
W
mA
pF
fs=44.1kHz
fs=96kHz
fs=44.1kHz, A-weighted
fs=96kHz
fs=44.1kHz, A-weighted
fs=96kHz
88
85
104
96
104
96
100
94
93
110
104
110
104
110
0.2
20
5.4
DR (-60dBFS)
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Output Voltage (Note 5)
Load Resistance (In case of AC load)
Output Current (In case of AC load)
Load Capacitance
0.5
-
5.8
5.0
1
1.5
25
Note: 3. Full scale (0dB) of the input voltage at PGA=0dB.
This voltage is proportional to VREF. Vin=0.58 x VREF.
4. PSR is applied to VA, VD, VT with 1kHz, 50mVpp. VREF pin is held a constant voltage.
5. Full scale (0dB) of the output voltage when summing the differential outputs, AOUT+/- by unity gain.
This voltage is proportional to VREF. Vout=1.08 x VREF x Gain.