Enfora Enabler II-G Assisted GPS

Modem Integration Guide

Figure 7 MCB2 Cable Assembly
6.6. Control Connector Signal Descriptions and Functions
6.6.1. Input Power
The Enfora Enabler II-G A-GPS module uses a single voltage source of VCC=+3.3V to 4.5V.
(The exact values of the uplink currents are shown in Tables5.3.1 GSM Operating Power
and 5.3.2 GPRS Operating Power). The VCC lines (pins 1 to 6) should be connected on the
application board.
The uplink burst will cause strong ripple on the voltage lines and should be effectively filtered. It is recommended that 1000 to 2000 μF of capacitance be placed as close to the modem I/O connector as possible.
It should be noted that the input voltage level should not drop below the minimum voltage rating under any circumstances, especially during the uplink burst period.

MLG0208PB001 26 Version1.01 – 10/3/2006