LC89057W-VF4A-E Datasheet, PDF (21/59 Pages) Sanyo Semicon Device – Digital Audio Interface Transceiver

LC89057W-VF4A-E
10.2.3 Bi-phase signal input circuits (RX0, RX1, RX2)
• _{If RX1 with a built-in amplifier is used as a coaxial input pin, malfunction may occur due to the influence from the}
adjacent RX0 and RX2 input pins. To avoid the influences from those pins, fix RX0 and RX2 to "L".
• _{When RX1 is selected and the input signal to RX1 is temporarily open because of AC coupling, the RX0 and RX2}
potential must be fixed. In this case, there are 5 bi-phase signal input pins available, which are RX1 and RX3 to RX 6.
• _{When RX1 is selected and the input signal to RX1 is always fixed to either "H" or "L", RX0 and RX2 processes are}
not required. In this case, all 7 input pins can be used validly.
Coaxial
Optical
0.1μF
75Ω
Optical
etc.
LC89057W-VF4A-E
RX0
RX1
RX2
RX3
RX4
RX5
RX6
(a):Coaxial input circuit
100Ω
Optical
etc.
LC89057W-VF4A-E
RX0
RX1
RX2
RX3
RX4
RX5
RX6
(b):Optical input circuit
Figure 10.6 Bi-Phase Signal Input Circuits
No.7202-21/59