AK5356 Datasheet, PDF (8/22 Pages) Asahi Kasei Microsystems – LOW POWER 20BIT ADC WITH MIC AMP & PGA

ASAHI KASEI
[AK5356]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD=2.0 ∼ 3.3V, DVDD=1.8 ∼ 3.3V, MVDD=2.4∼ 3.3V, fs=44.1kHz)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (LPF):
Passband
(Note 17) ±0.1dB
PB
0
17.4
kHz
-1.0dB
20.0
kHz
-3.0dB
21.1
kHz
Stopband
(Note 17)
SB
27.0
kHz
Passband Ripple
Stopband Attenuation
PR
SA
65
±0.1
dB
dB
Group Delay
(Note 18)
GD
17.0
1/fs
Group Delay Distortion
∆GD
0
µs
ADC Digital Filter (HPF):
Frequency Response (Note 17) -3dB
FR
3.4
Hz
-0.5dB
10
Hz
-0.1dB
22
Hz
Note 17. The passband and stopband frequencies scale with fs (sampling frequency).
For example, PB=0.454 x fs (@ -1.0dB).
Note 18. The calculated delay time caused by digital filtering. This time from the input of an analog signal to setting the
20bit data of both channels to the output register of the ADC and includes the group delay of the HPF.
DC CHARACTERISTICS
(Ta=25°C; AVDD=2.0 ∼ 3.3V, DVDD=1.8 ∼ 3.3V, MVDD=2.4∼ 3.3V)
Parameter
Symbol
min
typ
max
Units
High-Level Input Voltage
VIH
75%DVDD
-
-
V
Low-Level Input Voltage
VIL
-
-
25%DVDD V
High-Level Output Voltage Iout = -80µA
VOH DVDD-0.4
-
-
V
Low-Level Output Voltage Iout = 80µA
VOL
-
-
0.4
V
Input Leakage Current
Iin
-
-
±10
µA
MS0171-E-00
-8-
2002/08