
ASAHI KASEI
[AK4565]
MS0132-E-01
2003/05
- 6 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; VA, VD, VT=2.5V; fs=48kHz; Signal Frequency =1kHz; Measurement frequency = 10Hz
~
20kHz;
Unless otherwise specified)
Parameter
Input PGA Characteristics (IPGA):
Input Voltage
(INTL1-0, INTR1-0, EXTL, EXTR, LIN and RIN pins) (Note 7)
Input Resistance: MIC
(INTL1-0, INTR1-0, EXTL and EXTR pins)
LINE (LIN, RIN pins)
MIC
LINE
Step Size
-40dB
~
-52dB
-62dB
~
-74dB
ADC Analog Input Characteristics:
(Note 8)
Resolution
S/(N+D) (-2dBFS)
D-Range (-60dBFS, A-weighted)
S/N (A-weighted)
Interchannel Isolation (Note 9)
Interchannel Gain Mismatch
DAC Analog Output Characteristics:
Measured by LOUT/ROUT
Resolution
S/(N+D) (0dBFS)
D-Range (-60dBFS, A-weighted)
S/N (A-weighted)
Interchannel Isolation
Interchannel Gain Mismatch
Output Voltage (Note 10)
Load Resistance
Load Capacitance
Power Supplies
Power Supply Current: VA+VD+VT
Normal Operation (PDN= “H”)
All Power ON (PM3=“0”, PM2=PM1=PM0=“1”)
IPGA + ADC (PM3=PM2=“0”, PM1=PM0=“1”)
DAC (PM3=“0”, PM2 = “1”, PM1=PM0=“0”)
Power-down mode (PDN= “L”) (Note 11)
Note 7. Full-scale voltage of analog inputs when IPGA is set 0dB. Its voltage is proportional to VREF. Vin = 0.6 x VREF.
Note 8. ADC measurements are input from INTL0/INTR0, INTL1/INTR1, EXTL/EXTR or LIN/RIN and routed through
IPGA. The gain of IPGA is set 0dB.
The internal HPF cancels the offset of IPGA and ADC.
Note 9. This value is interchannel isolation between INTL0 and INTR0, between INTL1 and INTR1, between EXTL
EXTR, or between LIN and RIN.
Note 10. Analog output voltage is proportional to VREF. Vout = 0.6 x VREF.
Note 11. All digital input pins except for PDN pin are held at VT or DGND. PDN pin is held at DGND.
min
typ
max
Units
1.35
1.5
1.65
Vpp
6.5
80
0.1
0.1
0.1
-
-
10
125
0.5
1
2
2
4
14.5
176
0.9
1.9
3.9
-
-
k
+28dB
~
-8dB
-8dB
~
-16dB
-16dB
~
-32dB
-32dB
~
-40dB
+6dB
~
-30dB
-30dB
~
-38dB
-38dB
~
-54dB
-54dB
~
-62dB
dB
dB
dB
dB
dB
20
0.5
Bits
dB
dB
dB
dB
dB
74
81
81
85
83
87
87
100
0.2
20
0.5
1.65
20
Bits
dB
dB
dB
dB
dB
Vpp
k
pF
77
85
85
85
1.35
10
86
91
91
100
0.2
1.5
-
-
12.5
8.0
5.5
10
19
-
-
100
mA
mA
mA
μ
A