AK4626A Datasheet, PDF (10/40 Pages) Asahi Kasei Microsystems – High Performance Multi-channel Audio CODEC

ASAHI KASEI
[AK4626A]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.5∼5.5V; TVDD=2.7∼5.5V; fs=48kHz)
Parameter
Symbol
min
typ
ADC Digital Filter (Decimation LPF):
Passband
(Note 14) ±0.1dB
PB
-0.2dB
-3.0dB
0
-
20.0
-
23.0
Stopband
SB
28
Passband Ripple
PR
Stopband Attenuation
SA
68
Group Delay
(Note 15)
GD
16
Group Delay Distortion
∆GD
0
ADC Digital Filter (HPF):
Frequency Response (Note 14) -3dB
FR
1.0
-0.1dB
6.5
DAC Digital Filter:
Passband
(Note 14) -0.1dB
PB
0
-6.0dB
-
24.0
Stopband
SB
26.2
Passband Ripple
PR
Stopband Attenuation
SA
54
Group Delay
(Note 15)
GD
19.2
DAC Digital Filter + Analog Filter:
Frequency Response: 0 ∼ 20.0kHz
FR
±0.2
40.0kHz (Note 16)
FR
±0.3
80.0kHz (Note 16)
FR
±1.0
max
18.9
-
-
±0.04
21.8
-
±0.02
Units
kHz
kHz
kHz
kHz
dB
dB
1/fs
µs
Hz
Hz
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Notes:
14. The passband and stopband frequencies scale with fs.
For example, 21.8kHz at –0.1dB is 0.454 x fs.
15. 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 for ADC.
For DAC, this time is from setting the 20/24bit data of both channels on input register to the output of analog
signal.
16. 40.0kHz; fs=96kHz , 80.0kHz; fs=192kHz.
DC CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=4.5∼5.5V; TVDD=2.7∼5.5V)
Parameter
Symbol
min
typ
High-Level Input Voltage
VIH
2.2
-
Low-Level Input Voltage
VIL
-
-
High-Level Output Voltage
(SDTO, LRCK, BICK pin: Iout=-100µA) VOH TVDD-0.5
-
(DZF1, DZF2/OVF pins:
Iout=-100µA) VOH AVDD-0.5
-
Low-Level Output Voltage
(SDTO, DZF1, DZF2/OVF pins: Iout= 100µA) VOL
-
-
(SDA, LRCK, BICK pin:
Iout= 3mA) VOL
-
-
Input Leakage Current
(Note 17)
Iin
-
-
max
Units
-
V
0.8
V
-
V
-
V
0.5
V
0.4
V
±10
µA
Note 17: TST2 pin has an internal pull-down device, nominally 100kohm.
MS0397-E-00
- 10 -
2005/06