參數(shù)資料
型號: AK4556VT
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 3V 192kHz 24Bit ツヒ CODEC
中文描述: 3V的192kHz 24位ツヒ編解碼器
文件頁數(shù): 7/22頁
文件大小: 189K
代理商: AK4556VT
ASAHI KASEI
[AK4556]
MS0559-E-00
2006/11
- 7 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; VA=VD=3.0V; VSS=0V; fs=48kHz, 96kHz, 192kHz; Signal Frequency=1kHz; BCLK=64fs; Data=24bit
Measurement frequency=20Hz
20kHz at fs=48kHz, 40Hz
40kHz at fs=96kHz, 40Hz
40kHz at fs=192kHz; unless
otherwise specified)
Parameter
ADC Analog Input Characteristics:
Resolution
Input Voltage (Note 4)
fs=48kHz
1dBFS
BW=20kHz
60dBFS
fs=96kHz
1dBFS
BW=40kHz
60dBFS
fs=192kHz
1dBFS
BW=40kHz
60dBFS
DR (
60dBFS with A-weighted)
S/N (A-weighted)
Input Resistance
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection (Note 8)
DAC Analog Output Characteristics:
Resolution
Output Voltage (Note 5)
fs=48kHz
0dBFS
BW=20kHz
60dBFS
fs=96kHz
0dBFS
BW=40kHz
60dBFS
fs=192kHz
0dBFS
BW=40kHz
60dBFS
DR (
60dBFS with A-weighted)
S/N (A-weighted)
Load Capacitance (Note 6)
Load Resistance (Note 7)
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection (Note 8)
Note 4. This value is the full scale (0dB) of the input voltage. Input voltage is proportional to VA voltage.
Vin = 0.7 x VA (Vpp).
Note 5. This value is the full scale (0dB) of the output voltage. Output voltage is proportional to VA voltage.
Vout = 0.7 x VA (Vpp).
Note 6. When LOUT/ROUT drives some capacitive load, a 220
resistor should be added in series between
LOUT/ROUT and capacitive load. In this case, LOUT/ROUT pins can drive a capacitor of 400pF.
Note 7. For AC-load
Note 8. PSR is applied to VA and VD with 1kHz, 50mVpp. VCOM pin is connected to a 2.2
μ
F electrolytic capacitor and
a 0.1
μ
F ceramic capacitor.
min
typ
max
Units
-
-
24
2.3
-
-
-
-
-
-
-
-
-
-
0.5
-
-
Bits
Vpp
dB
dB
dB
dB
dB
dB
dB
dB
k
dB
dB
ppm/
°
C
dB
1.9
82
-
80
-
-
-
95
95
6
90
-
-
-
2.1
91
40
90
37
90
37
103
103
8
110
0.1
100
50
S/(N+D)
-
-
24
2.3
-
-
-
-
-
-
-
-
30
-
-
0.5
-
-
Bits
Vpp
dB
dB
dB
dB
dB
dB
dB
dB
pF
k
dB
dB
ppm/
°
C
dB
1.9
80
-
78
-
-
-
98
98
-
5
90
-
-
-
2.1
90
43
88
40
88
40
106
106
-
-
110
0.1
100
50
S/(N+D)
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