EZLINX-IIIDE-EBZ Datasheet, PDF (9/15 Pages) Analog Devices – ezLINX™Hardware User Guide

ezLINX™Hardware User
Guide
iCoupler® Isolated Interface Development
Environment
Figure 9. ADuM3401, ADuM3402, ADuM5000 Isolated SPI Implementation
ISOLATED LVDS
The Isolated LVDS port is implemented using the ADuM3442
iCoupler signal isolator, the ADN4664 dual LVDS receiver, the
ADN4663 dual LVDS transmitter and the ADuM5000
isoPower Isolated DC to DC converter. The ADuM3442 is
connected to SPORT2 of the ADSP-BF548. Figure 10 shows a
circuit diagram of the implementation of Isolated LVDS using
the ADuM3442, ADN4663, ADN4664 and ADuM5000 on the
ezLINX hardware.
VDD1 of the ADuM3442, and VDD1 of the ADuM5000 are
powered by 3.3V. The ADuM5000 will generate an isolated 3.3V
and is used to supply power to VDD2 of the ADuM3442, VCC of
the ADN4663 and the ADN4664.
A 32 pin header connector is used for easy access to the Isolated
LVDS signals.
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