CTA28-173-LMR1 View Datasheet(PDF) - Radiometrix Ltd
Part Name
Description
Manufacturer
CTA28-173-LMR1 Datasheet PDF : 11 Pages
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The long timeout is usable with the randomised periodic transmission mode (101), as the 3 second timeout is
longer than the longest delay between transmissions in this mode.
Versions of the chip can be supplied with this period extended to suit customer requirements
CTA28/CTA88 board: External input operation
Option 1 (Default)
LK1A
COM
LK1B
IN
+5V
LK1A will link the COM to the system ground
LK1B will link the +5V to the +5V system rail.
So, just linking the IN and +5V inputs will trigger the operation. It is useful for sliding switch
operation.
Option 2
COM
+5V
IN
OV
+Vcc
COM: Local ground (not connected to system ground)
IN : 4mA Voltage sense
+5V: +5V bias current
Connecting external supply to the COM and IN will trigger the operation
Option 3
LK1A
IN
COM
+5V
+Vcc
LK1A will link the COM to the system ground.
Radiometrix Ltd
CTA28 Demo board
page 7
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