Embedded Artists GPS Receiver Board EA-ACC-023 EA-ACC-023 Datenbogen

Produktcode

EA-ACC-023

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prior permission of GlobalTop Tech Inc. Specifications subject to change without prior notice.

FGPMMOPA6H Data Sheet

GlobalTop Technology

Ver. V0A

Document #

2.5 Description of I/O Pin

VCC (Pin1)

The main DC power supply of the module, the voltage should be kept between from 3.0V to 4.3V.

The Vcc ripple must be controlled under 50mV

(Typical: 3.3V)

NRESET (Pin2)

With a low level, it causes the module to reset. If not used, keep floating.

GND (Pin3, Pin8, Pin12, Pin19)

Ground

VBACKUP (Pin4)

This connects to the backup power of the GPS module. Power source (such as battery) connected to

this pin will help the GPS chipset in keeping its internal RTC running when the main power source is

turned off. The voltage should be kept between

2.0V~4.3V, Typical 3.0V.

IF VBACKUP power was not reserved, the GPS module will perform a lengthy cold start every time

it is powered-on because previous satellite information is not retained and needs to be re-

transmitted.

If not used, keep open.

3D-FIX (Pin5)

The 3D-FIX is assigned as a fix flag output. The timing behavior of this pin can be configured by

custom firmware for different applications (Example: waking up host MCU). If not used, keep

floating.

Before 2D Fix

The pin should continuously output one-second high-level with one-second low-level signal.