AK4524_12 Datasheet, PDF (6/32 Pages) Asahi Kasei Microsystems – 24Bit 96kHz Audio CODEC

[AK4524]
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
min
typ
max
Unit
Input PGA Characteristics:
Input Voltage
(Note 3)
2.7
2.9
3.1
Vpp
Input Resistance
5
10
15
kΩ
Step Size
0.2
0.5
0.8
dB
Gain Control Range
0
18
dB
ADC Analog Input Characteristics: IPGA=0dB
Resolution
S/(N+D)
(−0.5dBFS)
fs=44.1kHz
24
Bits
84
90
dB
fs=96kHz
80
88
dB
DR
(−60dBFS)
fs=44.1kHz, A-weighted
94
100
dB
fs=96kHz
88
96
dB
S/N
fs=44.1kHz, A-weighted
94
100
dB
fs=96kHz
88
96
dB
Interchannel Isolation
90
105
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
20
-
ppm/°C
Power Supply Rejection
(Note 4)
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
100
110
dB
Interchannel Gain Mismatch
0.2
0.5
dB
Gain Drift
20
-
ppm/°C
Output Voltage
(Note 5)
5.0
5.4
5.8
Vpp
Load Resistance
(In case of AC load)
1
kΩ
Output Current
(In case of AC load)
1.5
mA
Load Capacitance
25
pF
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.
M0050-E-04
-6-
2012/01