User's Manual

ALXC2X USER MANUAL
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2.3 Design Considerations
 ALXC2X module’s default power is 3.3V, and the power ripple should be controlled within 50mV.
 The input of EXT_SLEEP_CLK pin must be 32.768KHz square wave, if not please ground directly.
 The power access to the VDDIO pin after filtering circuit.
 The external antenna must has 50 ohm impedance of shielded wire, and nearby can’t have
metal components.