User Guide

Figure 28 Micro USB connector pins

Table 16 Micro USB connector pins and signals

Pin # Signal Pin # Signal

1 USB VBUs 4 XMIC/FM Antenna

2 USB D-/FBus_TX/XEARL 5 Charge GND

3 USB D+/FBus_RX/XEARR

FM radio

This phone uses a single-chip electronically tuned FM stereo radio with low voltage application.

Figure 29 FM radio interface

RM-164

System module

Issue 1 COMPANY CONFIDENTIAL Page 5 –13