Power input

Power requirement

The unit operates at 3.3 V +5%/-3%.

The 3.3 V should be able to supply 1 A of surge current. Worst-case full load power consumption including antenna is 2.5 W.

The typical power consumption based on band usage is:

• Enable GPS only L1/L2/L5 = 1.6 W

• GPS + GLONASS = 1.7 W

• All bands enabled = 1.75 W

Power switch

Pin 3 is an optional power-off pin. When driven high with 3.3 V, the receiver is powered off. This unit can be left floating or ground to keep the unit on. System integrators should not drive TTL signals when unit is not powered.

Over-voltage protection

The absolute maximum voltage is 3.6 V.

Under-voltage protection

The absolute minimum voltage is 3.2 V below nominal.

Reverse voltage protection

The unit is protected down to -3.6 V.