[ASAHI KASEI]
[AK4543]
AK4543 Analog Characteristics
Ta=25°C,AVdd=5.0V±5%, DVdd=3.3V±5% or 5V±5%, fs=48KHz, Signal Frequency =1kHz
All volume setting for ADC/DAC performance measurement is 0dB.
Parameter
min
Typ
Audio-ADC
Resolution
S/N (A weighted)
85
90
S/(N+D)
(-1dB analog input)
70
77
Inter Channel Isolation
70
77
Inter Channel Gain Mismatch
Full Scale Input Voltage
0.88
1.0
Power Supply Rejection
50
Audio DAC:
measured at AOUTL/AOUTR via MIXER path
Resolution
S/N (A weighted)
: mixer+DAC measured at AOUT
84
89
S/(N+D)
(-1dB digital input)
75
83
Inter Channel Isolation
70
80
Inter Channel Gain Mismatch
Full Scale Output Voltage
0.83
0.95
Total Out-of-Band Noise (28.8kHz - 100kHz)
-70
Power Supply Rejection
50
MIC Amplifier / MUX
Gain : 20dB is selected
18
20
Master volume (Mono, Stereo, True Line Level Out) : 1.5dB x 32 step
Step Size
-1.5
Attenuation Control Range
-46.5
Load Resistance
10
PC Beep : 3dB x 16 step
Step Size
-3.0
Attenuation Control Range
-45
Analog Mixer : 1.5dB x 32 step
Step Size
-1.5
Gain Control Range
-34.5
Record Gain : 1.5dB x 16 step
Step Size
+1.5
Gain Control Range
0
Mixer
Input Voltage (except for MIC)
1.0
Input Voltage
MIC : Gain = 0dB
1.0
MIC : Gain = 20dB
0.1
S/N(A weighed) : 0dB setting, 1 path is selected at Mixer
CD to AOUT:
85
95
Other analog input to AOUT
95
Input Impedance (Input gain=0dB,Rec_MUTE=off)
PC_BEEP only
(10)
80
Others(PHONE, LINE, CD, AUX, VIDEO)
(10)
40
Input Impedance (MIC1 and MIC2)
(10)
22
Power Supplies
Analog Power Supply Current(AVdd1 & AVdd2)
All ON mode(all PR_bits are 0)
36
Cold Reset status(Reset#=L, Vref is ON)
2.5
All OFF mode(all PR_bits are 1)
0
Digital Power Supply Current(DVdd1 & DVdd2)
All ON mode(all PR_bits are 0) at DVDD=5V
13
All ON mode(all PR_bits are 0) at DVDD=3.3V
6.6
All OFF mode(all PR_bits are 1)
0
max
18
Units
Bits
dB
dBFS
dB
dB
Vrms
dB
Bits
dB
dBFS
dB
dB
Vrms
dB
dB
dB
dB
dB
kΩ
dB
dB
dB
dB
dB
dB
Vrms
Vrms
Vrms
dB
dB
kΩ
kΩ
kΩ
0.5
1.12
18
1.0
1.07
22
0
0
+12
+22.5
54
5
0.2
20
10
0.2
mA
mA
mA
mA
mA
mA
<M0046-E-01>
-5-
1999/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
