參數(shù)資料
型號: AK4586
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: MULTI CHANNEL AUDIO CODEC WITH DIR
中文描述: 多通道音頻編解碼器迪爾
文件頁數(shù): 9/54頁
文件大?。?/td> 586K
代理商: AK4586
ASAHI KASEI
[AK4586]
MS0097-E-01
2001/12
- 9 -
FILTER CHARACTERISTICS
(Ta=25
°
C; AVDD, DVDD, PVDD=4.5
5.5V; TVDD=2.7
5.5V; fs=48kHz)
Parameter
ADC Digital Filter (Decimation LPF):
Passband (Note 14)
Symbol
min
typ
max
Units
±
0.1dB
-0.2dB
-3.0dB
PB
0
-
-
20.0
23.0
17.0
0
18.9
-
-
±
0.1
kHz
kHz
kHz
kHz
dB
dB
1/fs
μs
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 15)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 14)
-3dB
SB
PR
SA
GD
GD
29.4
65
-0.1dB
FR
1.0
6.5
Hz
Hz
DAC Digital Filter:
Passband (Note 14)
-0.1dB
-6.0dB
PB
0
-
24.0
19.1
21.8
-
±
0.02
kHz
kHz
kHz
dB
dB
1/fs
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 15)
DAC Digital Filter + Analog Filter:
Frequency Response: 0
20.0kHz
SB
PR
SA
GD
26.2
54
40.0kHz (Note 16)
FR
FR
±
0.2
±
0.3
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
High-Level Input Voltage (Except XTI pin)
(XTI pin)
Low-Level Input Voltage (Except XTI pin)
(XTI pin)
Input Voltage at AC Coupling (Note 17)
High-Level Output Voltage
(Except TX, DZF1, DZF2/OVF pins: Iout=-400μA)
(TX pin: Iout=-400μA)
(DZF1, DZF2/OVF pins: Iout=-400μA)
Low-Level Output Voltage
(Except SDA pin: Iout= 400μA)
(SDA pin: Iout= 3mA)
Input Leakage Current
Notes:
17. In case of connecting capacitance to XTI pin (refer to Figure 4).
min
2.2
typ
-
-
-
-
-
-
-
-
-
-
-
max
-
-
0.8
Units
V
V
V
V
Vpp
V
V
V
V
V
μA
VIH
VIH
VIL
VIL
VAC
VOH
VOH
VOH
VOL
VOL
Iin
70%DVDD
-
-
40%DVDD
TVDD-0.5
DVDD-0.5
AVDD-0.5
-
-
-
30%DVDD
-
-
-
-
0.5
0.4
±
10
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