[AK4438]
8. Electrical Characteristics
(Ta=25C; AVDD =TVDD=3.3V; VSS1=VSS2 =0V; VREFH=AVDD; fs=48kHz; BICK=64fs; Signal
Frequency=1kHz; 32bit Data; Measurement Frequency=20Hz20kHz at 48kHz, 20Hz~40kHz at
fs=96kHz, 20Hz~40kHz at fs=192kHz, unless otherwise specified.)
Parameter
Min.
Typ.
Max.
Unit
DAC Analog Output Characteristics
Resolution
Output Voltage
32
3.11
bit
Vpp
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
k
pF
dB
(Note 7)
2.55
80
-
-
104
-
-
104
-
-
2.83
91
89
S/(N+D)
(0dBFS)
fs=48kHz
fs=96kHz
fs=192kHz
89
Dynamic Range
(-60dBFS)
fs=48kHz (A-weighted)
fs=96kHz
108
101
101
108
101
101
110
0
fs=192kHz
S/N
fs=48kHz (A-weighted)
fs=96kHz
fs=192kHz
Interchannel Isolation
Interchannel Gain Mismatch
Load Resistance
Load Capacitance
Power Supply Rejection
90
0.7
(Note 8)
(Note 9)
10
30
-
-
50
Note 7. Full-scale output voltage. The output voltage is always proportional to AVDD (AVDD x 0.86).
Note 8. AC Load
Note 9. This is a value when applying a 1kHz 50mVpp sine wave to AVDD.
Parameter
Min.
Typ.
Max.
Unit
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
AVDD
TVDD
TVDD
TVDD
fs=48kHz, 96kHz, 192kHz
27
3.4
4.9
8.0
36
4.5
6.4
mA
mA
mA
mA
fs=48kHz
fs=96kHz
fs=192kHz
10.4
Power-down mode
(PDN pin = “L”) (Note 10)
AVDD+TVDD
10
200
µA
Note 10. Quiescent Current. All digital input pins including clock pins are fixed to VSS.
016001925-E-00
2016/03
- 8 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
