ASAHI KASEI
[AK4560A]
Parameter
ALC1 Characteristics (IPGA):
Maximum Input Voltage (Note 16)
Input Resistance:
MIC(MIC_IN_L and MIC_IN_R pins) (Note 17)
LINE(LIN and RIN pins) (Note 18)
Step Size
MIC
LINE
+0dB
∼
-36dB
+26dB
∼
-10dB
-36dB
∼
-44dB
-10dB
∼
-18dB
-44dB
∼
-56dB
-18dB
∼
-30dB
-56dB
∼
-68dB
-30dB
∼
-42dB
-68dB
∼
-80dB
-42dB
∼
-54dB
ADC Analog Input Characteristics:
ALC1 = OFF
Resolution
Input Voltage (Note 19) (Note 20)
(Note 21)
S/(N+D) (-2.0dBFS Output) (Note 20)
(Note 21)
DR (-60dBFS Output, A-Weighted) (Note 20)
(Note 21)
S/N
(A-Weighted) (Note 20)
(Note 21)
Interchannel Isolation (Note 20)
(Note 21)
Interchannel Gain Mismatch (Note 20)
(Note 21)
min
typ
max
-0.5
Units
dBV
kΩ
kΩ
dB
dB
dB
dB
dB
5.6
117
0.1
0.1
0.1
-
-
9
184
0.5
1
2
2
4
13
260
-6.3
-32.3
74
68
80
73
80
73
80
80
-5.5
-31.5
80
74
86
79
86
79
100
100
16
-4.7
-30.7
0.5
0.5
Bits
dBV
dBV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
DAC Analog Output Characteristics:
Measured via OUT1/ROUT1. VOL=+7.5dB
Resolution
16
Bits
S/(N+D) (0dBFS Input)
76
82
dB
DR (-60dBFS Input, A-Weighted)
82
88
dB
S/N (A-Weighted)
82
88
dB
Output Voltage (Note 19)
+1.2
+2
+2.8
dBV
Interchannel Isolation
80
100
dB
Interchannel Gain Mismatch
0.5
dB
Load Resistance
10
kΩ
Load Capacitance (Note 22)
20
pF
Note 16. When ALC1 is enabled, maximum input voltage becomes typically (VA – 0.13V) Vpp.
E.g. 2.67Vpp = -0.5dBV @ VA = 2.8V
Note 17. Input impedance of MIC changes from 8kΩ to 10kΩ by setting GAIN value, typically.
Note 18. Input impedance of LINE changes from 168kΩ to 200kΩ by setting GAIN value, typically.
Note 19. Input/Output voltage are proportional to VA voltage. 0.54 x VA.
Note 20. Input from LIN/RIN pins. AIN = “1”. IPGA = 0dB.
Note 21. Input from MIC_IN_L and MIC_IN_R pins. AIN = “0”. IPGA = +26dB.
Note 22. When output pin drives some capacitive load, some resistor should be added in series between output pin and
capacitive load.
MS0028-E-00
-8-
2000/05
AKM [ ASAHI KASEI MICROSYSTEMS ]
