User Guide

Figure9.S tart-U p T im ingandCurrentConsum ptionusingS hutdow nS tate
Figure10.S tart-U pT im ingandCurrentConsum ptionusingS tandby S tate
TX State
T heT X s tateis u s ed whenev erthedev iceis requ iredto trans m it data.It is enteredu s ingeither
theST ART _ T X orC H AN G E _ ST AT E com m and.W ith theST ART _ T X com m and,thenext s tate
can bedefinedto ins u reoptim altim ing.W hen eithercom m andis s ent to enterT X s tate,an
internals equ encerau tom atically takes careofallactions requ ired to m ov ebetween s tates
with no additionalu s ercom m ands needed.Exam ples ofthetim ingofthis trans ition can be
s een in Figu re9and Figu re10.T hes pecifics equ encercontrolled ev ents that takeplace
du ringthis tim ecan inclu deenableinternalL DOs ,s tart u p crys talos cillator,enablePL L ,
calibrateV CO/PL L ,activ epoweram plifier,and trans m it packet.
Figu re11s hows an exam pleofthecom m ands and tim ingfortheST ART _ T X com m and.CT S
willgo high as s oon as thes equ encerpu ts thepart into T X s tate.As thes equ enceris s tepping
throu gh theev ents lis ted abov e,CT S willbelow and no new com m ands orproperty changes