參數(shù)資料
型號: AK4562
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: LOW POWER 20BIT CODEC WITH PGA
中文描述: 低功耗20位編解碼器美巡賽
文件頁數(shù): 6/29頁
文件大?。?/td> 167K
代理商: AK4562
ASAHI KASEI
[AK4562]
MS0031-E-00
2000/05
- 6 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; VA, VD, VT=2.5V; fs=44.1kHz; Signal Frequency=1kHz; Measurement frequency=10Hz
20kHz;
unless otherwise specified)
Parameter
Resolution
Input PGA Characteristics (IPGA):
Input Voltage (LIN1, LIN2, RIN1, RIN2) (Note 5)
Input Impedance
Step Width
+28dB
-8dB
-8dB
-16dB
-16dB
-32dB
-32dB
-40dB
-40dB
-52dB
ADC Analog Input Characteristics:
(Note 6)
S/(N+D) (-0.5dBFS Input)
D-Range (EIAJ)
S/N (EIAJ)
Interchannel Isolation
Interchannel Gain Mismatch
DAC Analog Output Characteristics:
Measured at LOUT1/ROUT1 (Note 7)
S/(N+D)
D-Range (EIAJ)
S/N (EIAJ)
Interchannel Isolation
Interchannel Gain Mismatch
Output Voltage
Load Resistance
Load Capacitance
Output PGA Characteristics (OPGA):
S/(N+D) (Note 8)
S/N (EIAJ) (Note 8)
Noise level at Mute (EIAJ) (Note 9)
Input Voltage (Note 10)
Output Voltage (Note 10)
Input Impedance
Load Resistance
Load Capacitance
Step Width
+0dB
-34dB
-34dB
-64dB
-64dB
-78dB
min
typ
max
20
Units
bits
1.35
6.3
0.1
0.1
0.1
-
-
1.5
9
0.5
1
2
2
4
1.65
15.0
1
2
4
-
-
Vpp
k
dB
dB
dB
dB
dB
74
82
82
90
82
88
88
100
0.2
dB
dB
dB
dB
dB
0.5
78
87
87
90
86
93
93
100
0.2
1.5
dB
dB
dB
dB
dB
Vpp
k
pF
0.5
1.65
1.35
10
20
82
89
-
92
95
108
1.5
1.5
50
dB
dB
dB
Vpp
Vpp
k
k
pF
dB
dB
dB
-
1.65
1.65
80
30
10
20
2
4
-
0.1
0.1
-
1
2
2
Note : 5. Analog input voltage (full-scale voltage: IPGA = 0dB) scale with VREF. (IPGA = ADC = 0.6 x VREF.)
Note : 6. ADC is input from LIN1/RIN1 or LIN2/RIN2 and it measures included in IPGA. The value of IPGA is set 0dB.
Internal HPF cancels the offset of IPGA and ADC.
Note : 7. Analog output voltage scale with VREF. (DAC = 0.6 x VREF.)
Note : 8. Input: OPGAL/OPGAR; Output: LOUT2/ROUT2; OPGA = 0dB.
Note : 9. Noise level when reference voltage is 1.5Vpp.
Note : 10. Analog input/output voltage scale with VREF. (OPGA = 0.6 x VREF.)
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