參數(shù)資料
型號: AK4683
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Asynchronous Multi-Channel Audio CODEC with DIR/T
中文描述: 異步多聲道音頻編解碼器署長/噸
文件頁數(shù): 50/82頁
文件大?。?/td> 1257K
代理商: AK4683
ASAHI KASEI
[AK4683]
MS0427-E-01
2005/11
- 50 -
The DITD1-0 bits control the data source of DIT.
DITD1 bit
0
0
1
1
DITD0 bit
0
1
0
1
DIT Source
DIR
ADC
SDTIB
SDTIA1(default)
Table 58. DIT Source Control
Biphase signal input/output circuit (RX0, TX)
RX0
AK4683
0.1uF
75
Coax
75
Figure 28. Consumer Input Circuit (Coaxial Input)
Note: In case of coaxial input, if a coupling level to this input from the next RX input line
pattern exceeds 50mV, there is a possibility to occur an incorrect operation. In this case, it is
possible to lower the coupling level by adding this decoupling capacitor.
RX0-3
AK4683
470
O/E
Optical Receiver
Optical
Fiber
Figure 29. Consumer Input Circuit (Optical Input)
In case of coaxial input, as the input level of RX0 line is small, be careful not to crosstalk among RX input lines. For
example, by inserting the shield pattern among them.
The AK4683 includes the TX output buffer. The output level meets combination 0.5V+/-20% using the external resistor
network. The T1 in Figure 30 is a transformer of 1:1.
330
±
2%
TX
DVSS
100
±
2%
T1
75
cable
Figure 30. TX External Resistor Network
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