ak4683 AKM Semiconductor, Inc., ak4683 Datasheet - Page 51
ak4683
Manufacturer Part Number
ak4683
Description
Asynchronous Multi-channel Audio Codec With Dir/t
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4683.pdf
(84 pages)
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The DITD1-0 bits control the data source of DIT.
■
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.
MS0427-E-02
Biphase signal input/output circuit (RX0, TX)
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.
DVSS
Optical
Fiber
TX
Coax
75Ω
DITD1 bit
Optical Receiver
330±2%
Figure 28. Consumer Input Circuit (Coaxial Input)
Figure 29. Consumer Input Circuit (Optical Input)
0
0
1
1
Figure 30. TX External Resistor Network
O/E
Table 58. DIT Source Control
DITD0 bit
100±2%
0
1
0
1
75Ω
- 51 -
0.1uF
SDTIA1(default)
470
T1
DIT Source
SDTIB
ADC
DIR
75Ω cable
RX0
RX0-3
AK4683
AK4683
[AK4683]
2007/04
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