
ASAHI KASEI
[AK5700]
MS0569-E-01
2006/12
- 7 -
FILTER CHARACTERISTICS
(Ta=25
°
C; AVDD=2.4
~
3.6V; DVDD=1.6
~
3.6V; fs=44.1kHz)
Parameter
ADC Digital Filter (Decimation LPF):
Passband (Note 14)
Stopband (Note 14)
Passband Ripple
Stopband Attenuation
Group Delay (Note 15)
Group Delay Distortion
ADC Digital Filter (HPF):
HPF1-0 bits = “00”
Frequency Response (Note 14)
Note 14. The passband and stopband frequencies scale with fs (system sampling rate).
For example, PB=0.454*fs (@
1.0dB). Each response refers to that of 1kHz.
Note 15. The calculated delay time caused by digital filtering. This time is from the input of analog signal to setting of the
16-bit data from the input register to the output register of the ADC. This time includes the group delay of the
HPF.
DC CHARACTERISTICS
(Ta=25
°
C; AVDD=2.4
~
3.6V; DVDD=1.6
~
3.6V)
Parameter
Symbol
High-Level Input Voltage
Except CSP pin; 2.2V
≤
DVDD
≤
3.6V
VIH
Except CSP pin; 1.6V
≤
DVDD <2.2V
VIH
CSP pin
VIH
Low-Level Input Voltage
Except CSP pin; 2.2V
≤
DVDD
≤
3.6V
VIL
Except CSP pin; 1.6V
≤
DVDD <2.2V
VIL
CSP pin
VIL
High-Level Output Voltage
(Iout=
200
μ
A)
VOH
Low-Level Output Voltage
(Iout= 200
μ
A)
VOL
Input Leakage Current (Note 16)
Iin
Note 16. When CSP pin is “H”, CCLK pin has internal pull-down device, normally 100k
Ω
.
Symbol
min
typ
max
Units
±
0.1dB
1.0dB
3.0dB
PB
SB
PR
SA
GD
Δ
GD
0
-
-
-
17.4
-
-
-
±
0.1
-
-
-
kHz
kHz
kHz
kHz
dB
dB
1/fs
μ
s
20.0
21.1
-
-
-
18
0
25.7
-
65
-
-
3.0dB
0.5dB
0.1dB
FR
-
-
-
3.4
10
22
-
-
-
Hz
Hz
Hz
min
typ
-
-
-
-
-
-
-
-
-
max
-
-
-
Units
V
V
V
V
V
V
V
V
μ
A
70
%
DVDD
80
%
DVDD
90
%
DVDD
-
-
-
30
%
DVDD
20
%
DVDD
10
%
DVDD
-
0.2
±
10
DVDD
0.2
-
-