User Guide

Back-up battery interface electrical characteristics

Table 14 Back-up battery connections

Pin name I/O Connection Notes

L2207,

VBack

-> N2200,

VBack

Back-up battery G2200 is

connected to N2200 via coil

Table 15 Back-up battery electrical characteristics

Description Parameter Min Typ Max Unit

Back-Up

Battery

Voltage

Vback 0 2.5 2.7 V

RF description

Block diagram

Figure 54 RF block diagram RM-159 using RF ASIC N7505

The RF block diagram for RM-159 uses RF ASIC N7505 that performs the RF back-end functions of receive and

transmit function of the cellular transceiver.

RA-6

System Module

Page 6 –32 COMPANY CONFIDENTIAL Issue 1