參數(shù)資料
型號: AK4628
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: HIGH PERFORMANCE MULTI CHANNEL AUDIO CODEC
中文描述: 高性能多通道音頻解碼器
文件頁數(shù): 8/41頁
文件大小: 546K
代理商: AK4628
ASAHI KASEI
[AK4628]
MS0211-E-02
2004/03
- 8 -
ANALOG CHARACTERISTICS
(Ta=25
°
C; AVDD, DVDD, TVDD=5V; AVSS, DVSS=0V; VREFH=AVDD; fs=48kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz
20kHz at 48kHz, 20Hz~40kHz at fs=96kHz,
20Hz~40kHz at fs=192kHz; unless otherwise specified)
Parameter
ADC Analog Input Characteristics
Resolution
S/(N+D) (-0.5dBFS)
fs=48kHz
fs=96kHz
DR (-60dBFS)
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
S/N (Note 8)
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
Interchannel Isolation
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Input Voltage
AIN=0.62xVREFH
Input Resistance (Note 9)
Power Supply Rejection (Note 10)
DAC Analog Output Characteristics
Resolution
S/(N+D)
fs=48kHz
fs=96kHz
fs=192kHz
DR (-60dBFS)
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=192kHz
fs=192kHz, A-weighted
S/N (Note 11)
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=192kHz
fs=192kHz, A-weighted
Interchannel Isolation
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage AOUT=0.6xVREFH
Load Resistance
Power Supply Rejection (Note 10)
Notes: 8. S/N measured by CCIR-ARM is 98dB(@fs=48kHz).
9. Input resistance is 16k
typically at fs=96kHz.
10. PSR is applied to AVDD, DVDD and TVDD with 1kHz, 50mVpp. VREFH pin is held a constant voltage.
11. S/N measured by CCIR-ARM is 102dB(@fs=48kHz).
min
typ
max
Units
24
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
84
-
94
88
93
94
88
93
90
92
86
102
96
102
102
96
102
110
0.2
20
3.10
25
50
0.3
-
3.30
dB
ppm/
°
C
Vpp
k
dB
2.90
15
24
Bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
80
78
-
95
88
94
-
-
95
88
94
-
-
90
90
88
88
106
100
106
100
106
106
100
106
100
106
110
0.2
20
3.0
50
0.5
-
3.25
dB
ppm/
°
C
Vpp
k
dB
2.75
5
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