
[AK4646EZ]
MS0630-E-00
2007/06
- 11 -
FILTER CHARACTERISTICS
(Ta = 25
°
C; AVDD =2.2
~
3.6V, DVDD =1.6
~
3.6V, SVDD =2.2
~
4.0V; fs=44.1kHz; DEM=OFF)
Parameter
Symbol
ADC Digital Filter (Decimation LPF):
Passband (Note 25)
±
0.16dB
0.66dB
1.1dB
6.9dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 26)
Group Delay Distortion
Δ
GD
DAC Digital Filter (LPF):
Passband (Note 25)
±
0.05dB
6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 26)
DAC Digital Filter (LPF) + SCF:
Frequency Response: 0
~
20.0kHz
Note 25. The passband and stopband frequencies scale with fs (system sampling rate).
For example, ADC is PB = 20.0kHz = 0.454*fs (@-1.0dB). Each response refers to that of 1kHz.
Note 26. The calculation delay time caused by digital filtering. This time is from the input of analog signal to setting of the
16-bit data of both channels to the output register of the ADC. This time includes the group delay of the HPF. For
the DAC, this time is from setting the 16-bit data of both channels from the input register to the output of analog
signal.
DC CHARACTERISTICS
(Ta = 25
°
C; AVDD =2.2
~
3.6V, DVDD =1.6
~
3.6V, SVDD =2.2
~
4.0V)
Parameter
Symbol
High-Level Input Voltage (DVDD
≥
2.2V)
(DVDD < 2.2V)
Low-Level Input Voltage (DVDD
≥
2.2V)
(DVDD < 2.2V)
High-Level Output Voltage (Iout=
80
μ
A)
Low-Level Output Voltage (Iout= 80
μ
A)
VOL
Input Leakage Current
Iin
min
typ
max
Units
PB
SB
PR
SA
GD
0
-
-
-
-
17.3
-
-
-
-
±
0.1
-
-
-
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
μ
s
19.4
19.9
22.1
-
-
-
19
0
26.1
-
73
-
-
PB
SB
PR
SA
GD
0
-
-
20.0
-
-
±
0.02
-
-
kHz
kHz
kHz
dB
dB
1/fs
22.05
-
-
-
20
24.1
-
54
-
FR
-
±
1.0
-
dB
min
typ
-
-
-
-
-
-
-
max
-
-
Units
V
V
V
V
V
V
μ
A
VIH
VIL
VOH
70%DVDD
80%DVDD
-
-
DVDD
0.4
-
-
30%DVDD
20%DVDD
-
0.4
±
10