AK4571 Datasheet, PDF (7/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
Ta=25°C,VA=VD=3.3V, Signal Frequency=1kHz, Sampling Frequency Fs=44.1kHz BW=20Hz – 20kHz, TEST mode; unless otherwise
specified
Parameter
Min
typ
Max
Units
Mono ADC (1 channel)
Resolution
16
bits
S/N (A weight) @44.1kHz
(PGA is set to 0dB) AMP2I input : USB Normal mode
83
dBA
S/(N+D)
(-1.0dB analog input) USB Normal mode
73
dB
Full scale input Voltage
0.53
0.6
0.67
Vrms
MIC amplifier
S/N (A weight)
MICIN input AMP1O output
76
84
dBA
Gain 20dB Selected
+17
+20
+23
dB
Input Impedance
10
20
kΩ
StereoDAC (2 channel)
Resolution
S/N (A weight) @44.1kHz (DAC volume &master volume is set to 0dB)
16
bits
84
dBA
USB Normal mode
S/(N+D)
(-1.0dB digital input) USB Normal mode
75
dB
Full scale output Voltage
0.53
0.6
0.67
Vrms
PGA
Step size
0
1.0
2.0
dB
Attenuation control range
-31
+24
dB
Input Impedance AMP2I input
10
20
kΩ
Master volume:
step size
0
1.0
2.0
dB
Attenuation control range
-47
0
dB
Output Load Resistance
Output Load Capacitance
10
kΩ
5
pF
Bass Boost
Internal Resistance
40
kΩ
External Resistance
External Capacitance
360
400
kΩ
5
pF
MIC Bias (Buffer Amp)
Output Voltage
1.94
2.2
2.46
Vdc
Output Current
2
mA
Power Supplies
Analog
35
52
mA
Digital
Total
Power Down(Suspend)
15
23
mA
50
75
mA
0
150
uA
MS0153-J-02
-7 -
2003/3