[AK4685]
Power Supplies
Parameter
min
typ
max
Units
Power Supply Current
Normal Operation (PDN pin = “H”)
TVDD
DVDD1+AVDD1
DVDD2+AVDD2
(Note 17)
6
33
9
47
mA
mA
Differential mode fs=48kHz
13
14
17
14
15
18
19
-
-
-
-
mA
mA
mA
mA
mA
mA
fs=96kHz
fs=192kHz
Single End mode fs=48kHz
fs=96kHz
fs=192kHz
-
DVDD3+AVDD3 (No Input)
fs=48kHz
fs=96kHz
fs=192kHz
20
21
23
6
30
-
-
mA
mA
mA
mA
PVDD
9
Power-Down Mode (PDN pin = “L”; Note 18)
TVDD
10
10
10
10
10
100
100
100
100
100
μA
μA
μA
μA
μA
DVDD1+AVDD1
DVDD2+AVDD2
DVDD3+AVDD3
PVDD
Note 17. Master Mode. MCB=36.864MHz. 20pF load capacitors are connected to MCKO, BICKB, LRCKB, SDTOB1 and
SDTOB2 pins.
Note 18. All digital inputs including clock pins (MCLKA, MCB, MCLKC, BICKA, BICKB, BICKC, LRCKA, LRCKB,
LRCKC, SDTIA, SDTIC) are held at DVDD1, DVDD2, DVDD3, VSS1, VSS2 or VSS7.
FILTER CHARACTERISTICS
(Ta=-20°C ~+85°C; TVDD=3.0 ~ 5.25V; DVDD1-3=AVDD1-3=4.75 ~ 5.25V; PVDD=3.0 ~ 3.6V; fs=48kHz)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 19)
PB
0
-
-
28.0
68
18.9
-
-
kHz
kHz
kHz
kHz
dB
±0.1dB
-0.2dB
-3.0dB
20.0
23.0
Stopband
Stopband Attenuation
Group Delay
SB
SA
GD
(Note 20)
16
1/fs
ADC Digital Filter (HPF):
Frequency Response (Note 19)
-3dB
-0.1dB
FR
PB
1.0
6.5
Hz
Hz
DAC Digital Filter:
Passband
(Note 19)
0
-
26.2
54
21.8
-
kHz
kHz
kHz
dB
±0.1dB
-6.0dB
24.0
20
Stopband
SB
SA
GD
Stopband Attenuation
Group Delay
(Note 20)
1/fs
DAC Digital Filter + Analog Filter:
FR
FR
FR
dB
dB
dB
Frequency Response: 0 ∼ 20.0kHz
±0.2
±0.3
±1.0
40.0kHz (Note 21)
80.0kHz (Note 21)
Note 19. The passband and stopband frequencies scale with fs.
For example, 21.8kHz at –0.1dB is 0.454 x fs (DAC). The reference frequency of these responses is 1kHz.
MS1106-E-00
2009/08
- 11 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
