[AK4685]
ANALOG CHARACTERISTICS
(Ta=25°C; TVDD = 3.3V; DVDD1-3=AVDD1-3= 5.0V; PVDD = 3.3V; VSS1-7 = 0V; fs=48kHz; BICK=64fs; Signal
Frequency=1kHz; 24bit Data; Measurement Frequency = 20Hz∼ 20kHz at fs=48kHz, 20Hz~40kHz at fs=96kHz;
20Hz~40kHz at fs=192kHz, all blocks are synchronized, unless otherwise specified)
Parameter
min
typ
max
Units
ADC Characteristics
Feedback Resistance
10
50
kΩ
Resolution
24
Bits
S/(N+D) (-1dBFS.
fs=48kHz
82
95
dB
DR
(-60dBFS.
fs=48kHz, A-weighted
93
102
dB
S/N
(input off)
fs=48kHz, A-weighted
93
102
dB
Interchannel Isolation
90
100
dB
Interchannel Gain Mismatch
0.6
dB
Gain Drift
50
-
ppm/°C
Input Range
Vpp
(Pre-Amp output) =
±3.3
x AVDD1/5
±2.97
±3.3
±3.63
Power Supply Rejection
60
dB
DAC to Analog Output Characteristics (Differential Mode)
Resolution
24
Bits
S/(N+D)
(0dBFS)
fs=48kHz
82
95
dB
fs=96kHz
-
95
dB
fs=192kHz
-
95
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
98
107
dB
fs=96kHz
-
102
dB
fs=96kHz, A-weighted
-
107
dB
fs=192kHz
-
102
dB
fs=192kHz, A-weighted
-
107
dB
S/N
(“0” data)
fs=48kHz, A-weighted
98
108
dB
fs=96kHz
-
102
dB
fs=96kHz, A-weighted
-
107
dB
fs=192kHz
-
102
dB
fs=192kHz, A-weighted
-
107
dB
Interchannel Isolation
90
100
dB
Interchannel Gain Mismatch
0.5
dB
Gain Drift
50
-
ppm/°C
Output Voltage
Vpp
(AOUT+ -AOUT-)=
±2.56
x AVDD2/5
±2.30
±2.56
±2.82
Load Resistance
(AC Load,
5
kΩ
Load Capacitance
30
pF
Power Supply Rejection
50
dB
DAC to Analog Output Characteristics (Single End Mode)
Resolution
24
Bits
S/(N+D)
(0dBFS)
fs=48kHz
80
90
dB
fs=96kHz
-
90
dB
fs=192kHz
-
90
dB
DR
(-60dBFS)
fs=48kHz, A-weighted
98
105
dB
fs=96kHz
-
99
dB
fs=96kHz, A-weighted
-
105
dB
fs=192kHz
-
99
dB
fs=192kHz, A-weighted
-
105
dB
S/N
(“0” data)
fs=48kHz, A-weighted
98
106
dB
fs=96kHz
-
99
dB
fs=96kHz, A-weighted
-
105
dB
fs=192kHz
-
99
dB
fs=192kHz, A-weighted
-
105
dB
Interchannel Isolation
90
100
dB
Interchannel Gain Mismatch
0.5
dB
MS1106-E-00
-9-
2009/08
AKM [ ASAHI KASEI MICROSYSTEMS ]
