ASAHI KASEI
[AK4528]
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 = 20Hz
∼
20kHz at fs=44.1kHz, 40Hz
∼
40kHz at fs=96kHz; unless otherwise specified)
Parameter
min
typ
max
Units
Input PGA Characteristics:
ADC Analog Input Characteristics: Analog Source impedance = 330Ω
Resolution
24
Bits
Input Voltage
(Note 3)
±2.6
±2.8
±3.0
Vpp
Input Resistance
fs=44.1kHz
16
27
kΩ
fs=96kHz
7
12
kΩ
S/(N+D)
(−0.5dBFS)
fs=44.1kHz
88
94
dB
fs=96kHz
84
92
dB
DR
(−60dBFS)
fs=44.1kHz, A-weighted
100
108
dB
fs=96kHz
95
103
dB
S/N
fs=44.1kHz, A-weighted
100
108
dB
fs=96kHz
95
103
dB
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
20
-
ppm/°C
Input Voltage
(Note 3)
±2.6
±2.8
±3.0
Vpp
Input Resistance
fs=44.1kHz
16
27
kΩ
fs=96kHz
7
12
kΩ
Input DC Bias Voltage
(Note 4)
0.56VA
-
0.60VA
V
Power Supply Rejection
(Note 5)
-
50
-
dB
DAC Analog Output Characteristics:
Resolution
24
Bits
S/(N+D)
(0dBFS)
fs=44.1kHz
88
94
dB
fs=96kHz
85
93
dB
DR
(−60dBFS)
fs=44.1kHz, A-weighted
104
110
dB
fs=96kHz
96
104
dB
S/N
fs=44.1kHz, A-weighted
104
110
dB
fs=96kHz
96
104
dB
Interchannel Isolation
90
110
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
20
-
ppm/°C
Output Voltage
(Note 6)
5.0
5.4
5.8
Vpp
Load Resistance
(In case of AC load)
1
kΩ
Output Current
1.5
mA
Load Capacitance
25
pF
Power Supply Rejection
(Note 5)
50
-
dB
Note: 3. This voltage is input to AIN+ and AIN− pin, and is proportional to VREF. Vin = 0.56 x VREF.
4. Measured by Figure 12. DC Bias Voltage, Vb = 4.7k / (3.3k + 4.7k) x VA = 0.5875VA.
5. PSR is applied to VA, VD, VT with 1kHz, 50mVpp. VREF pin is held a constant voltage.
6. 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.
MS0011-E-01
-6-
2004/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
