Field and System Enable Functions: Both the isolated and nonisolated sides of the AD260 have ENABLE pins that three- state all outputs. Upon reenabling these pins, all outputs are updated to reflect the current input logic level.
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Switching frequency is internally set at l.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.
Control Signal Layout There are no time-critical control signals on the GigaPHY-SD device. However, it is important to route control lines to the chips in such a way as to avoid crosstalk and noise injection. Data Bus Layout
- t ( v ) - f 0 0 ( \ J 0 7 5 i n r - - 4 3 ( \ 1 1 1 1 0 0 0 0 o o o o o o o o o o