AK5355 Datasheet, PDF (5/14 Pages) Asahi Kasei Microsystems – LOW POWER 16BIT ADC

ASAHI KASEI
[AK5355]
FILTER CHARACTERISTICS
(Ta=25°C; VA, VD=2.1 ∼ 3.6V; fs=44.1kHz)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 5) ±0.1dB
PB
0
17.4
kHz
-1.0dB
-3.0dB
20.0
kHz
21.1
kHz
Stopband
(Note 5)
SB
27.0
kHz
Passband Ripple
PR
±0.1
dB
Stopband Attenuation
SA
65
dB
Group Delay
(Note 6)
GD
17.0
1/fs
Group Delay Distortion
∆GD
0
µs
ADC Digital Filter (HPF):
Frequency Response (Note 5) -3dB
FR
3.4
Hz
-0.5dB
10
Hz
-0.1dB
22
Hz
Note 5. The passband and stopband frequencies scale with fs (sampling frequency).
For examples, PB=0.454 x fs(@ADC: -1.0dB).
Note 6. The calculated delay time caused by digital filtering. This time is from the input of an analog signal to setting the
16bit data of both channels to the output register of the ADC and includes the group delay of the HPF.
DC CHARACTERISTICS
(Ta=25°C; VA, VD=2.1 ∼ 3.6V)
Parameter
Symbol
min
typ
High-Level Input Voltage (Except for TST1 pin) VIH
75%VD
-
Low-Level Input Voltage (Except for TST1 pin) VIL
-
-
High-Level Output Voltage (Iout=-80µA)
VOH
VD-0.4
-
Low-Level Output Voltage (Iout=80µA)
VOL
-
Input Leakage Current (Note 7)
Iin
-
-
Note 7. TST1 pin is pulled-down internally (typ. 100kΩ)
max
-
25%VD
-
0.4
± 10
Units
V
V
V
V
µA
MS0113-E-00
-5-
2001/08