AK4532_04 Datasheet, PDF (6/17 Pages) Asahi Kasei Microsystems – Internet/Network/General Purpose Multimedia Audio CODEC

ASAHI KASEI
[AK4532]
FILTER CHARACTERISTICS
(Ta=25 °C; VA, VD = 5.0V ± 10%; fs = 44.1 kHz)
Parameter
Symbol min typ
max Units
A/D Digital Filter
(Decimation LPF)
Passband (Note 1)
+/- 0.1 dB PB
0
16.5 kHz
-0.5 dB
0
19.0 kHz
-1.2 dB
0
20.0 kHz
-6.7 dB
0
22.05 kHz
Stopband
SB
26.0
kHz
Passband Ripple
PR
+/- 0.1 dB
Stopband Attenuation
SA
68
dB
Group Delay Distortion
Delta GD
0
uS
Group Delay (Note 2)
GD
16.1
1/fs
A/D Digital Filter (HPF)
Frequency Response
-3 dB
FR
6.85
Hz
(Note 1)
-0.5 dB
19.6
Hz
-0.1 dB
44.9
Hz
D/A Digital Filter
Passband (Note 1)
+/- 0.1 dB PB
0
18.0 kHz
-6.0 dB
0
22.05 kHz
Stopband
SB
26.1
kHz
Passband Ripple
PR
+/- 0.1 dB
Stopband Attenuation
SA
65
dB
Group Delay (Note 2)
GD
14.4
1/fs
D/A Digital Filter
+ Analog Filter
Frequency Response
0 to 20 kHz FR
+/- 1.0
dB
Note: 1. The passband and stopband frequencies scale with fs.
2. The calculating delay time which occurred by digital filtering. This time is from the input of
analog signal to setting the 16bit data of both channels to the output register of ADC.
For DAC, this time is from setting 16bit data of both channels on input register to the output of
analog signal.
DIGITAL CHARACTERISTICS
(Ta=25 °C; VA, VD = 5.0V±10%)
Parameter
Symbol min
typ
High-Level Input Voltage
VIH
2.2
-
Low-Level Input Voltage
VIL
-
-
High-Level Output Voltage (Iout=-80uA) VOH VD-0.4 -
Low-Level Output Voltage (Iout=80uA) VOL -
-
Input Leakage Current
Iin
-
-
max
-
0.8
-
0.4
+/-10
Units
V
V
V
V
uA
0178-E-02
6
2004/12