AK4586 Datasheet, PDF (9/54 Pages) Asahi Kasei Microsystems – MULTI CHANNEL AUDIO CODEC WITH DIR

ASAHI KASEI
[AK4586]
FILTER CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD=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
-0.2dB
-
20.0
-3.0dB
-
23.0
Stopband
SB
29.4
Passband Ripple
PR
Stopband Attenuation
SA
65
Group Delay
(Note 15)
GD
17.0
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
19.1
DAC Digital Filter + Analog Filter:
Frequency Response: 0 ∼ 20.0kHz
FR
±0.2
40.0kHz (Note 16)
FR
±0.3
max
18.9
-
-
±0.1
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
Notes:
14. The passband and stopband frequencies scale with fs.
For example, 21.8kHz at –0.1dB is 0.454 x fs. The reference frequency of these responses is 1kHz.
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. fs=96kHz.
DC CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD=4.5∼5.5V; TVDD=2.7∼5.5V)
Parameter
Symbol
min
typ
max
Units
High-Level Input Voltage (Except XTI pin)
VIH
2.2
-
-
V
(XTI pin)
VIH 70%DVDD -
-
V
Low-Level Input Voltage (Except XTI pin)
VIL
-
-
0.8
V
(XTI pin)
VIL
-
- 30%DVDD V
Input Voltage at AC Coupling
(Note 17) VAC 40%DVDD -
-
Vpp
High-Level Output Voltage
(Except TX, DZF1, DZF2/OVF pins: Iout=-400µA) VOH TVDD-0.5
-
-
V
(TX pin:
Iout=-400µA) VOH DVDD-0.5 -
-
V
(DZF1, DZF2/OVF pins:
Iout=-400µA) VOH AVDD-0.5 -
-
V
Low-Level Output Voltage
(Except SDA pin:
(SDA pin:
Input Leakage Current
Iout= 400µA) VOL
-
Iout= 3mA)
VOL
-
Iin
-
-
0.5
V
-
0.4
V
-
±10
µA
Notes:
17. In case of connecting capacitance to XTI pin (refer to Figure 4).
MS0097-E-01
-9-
2001/12