AK5730 Datasheet, PDF (10/50 Pages) Asahi Kasei Microsystems – 4-Channel Differential Audio ADC for Line & Mic Inputs

[AK5730]
FILTER CHARACTERISTICS
(Ta=25°C ; AVDD=DVDD=3.0∼3.6V; fs=48kHz)
Parameter
Symbol
min
typ
max
Unit
ADC Digital Filter (Decimation LPF):
Passband
(Note 13)
1
±0.13dB
PB
0
18.0
kHz
-0.2dB
-
20.0
-
kHz
-3.0dB
-
23.0
-
kHz
Stopband
SB
28
kHz
Passband Ripple
PR
±0.04
dB
Stopband Attenuation
SA
68
dB
Group Delay
(Note 14)
GD
1
16.4
1/fs
Group Delay Distortion
ΔGD
0
μs
ADC Digital Filter (HPF):
Frequency Response (Note 13) -3dB
FR
1
-0.1dB
1.0
Hz
7.1
Hz
Note 13. The passband and stopband frequencies scale with fs.
For example, 21.8kHz at –0.1dB is 0.454 x fs.
Note 14. The calculating delay time which occurred by digital filtering. This time is from setting the input of analog signal
to setting the 24bit data of both channels to the output register.
DC CHARACTERISTICS
(Ta=-40°C ~+105°C; AVDD=DVDD=3.0∼3.6V)
Parameter
Symbol
min
typ
max
Unit
High-Level Input Voltage
VIH 70%DVDD
-
-
V
Low-Level Input Voltage
VIL
-
-
30%DVDD V
High-Level Output Voltage ( Iout=-400μA)
VOH DVDD-0.4
-
-
V
Low-Level Output Voltage
(Iout= -400μA(except SDA, INT pin),
VOL
-
3mA(SDA, INT pin))
Input Leakage Current
Iin
-
0.4
V
-
±10
μA
(Ta=25°C; AVDD=DVDD=3.3V )
Power Supplies
Parameter
min
typ
max Unit
Power Supply Current
Normal Operation (PDN pin = “H”)
DVDD (Microphone Current=40mA)
DVDD (Microphone Current=100uA)
AVDD
Power-Down Mode (PDN pin = “L”; Note 15)
DVDD+AVDD
DVDD
AVDD
180
220
mA
18
27
mA
9
13.5 mA
100
μA
3
μA
0
μA
Note 15. All digital inputs including clock pins (MCLK, BICK, LRCK and TDMI) are held at DVDD or VSS2.
Rev 0.8
- 10 -
2013/06