User Guide

External earpiece and microphone

Figure 58 External earpiece and microphone audio circuit

Baseband technical specifications

External interfaces

Name of connection Connector reference

HS USB X3300

MicroSD card X3200

Battery connector X2070

SIM card reader X2700

Accessory (AV)

connector

X2010

Charger X3300

SIM IF connections

Pin Signal I/O Engine connection Notes

1 VSIM Out EM ASIC N2200 VSIM1 Supply voltage

to SIM card,

1.8V or 3.0V.

2 SIMRST Out EM ASIC N2200 SIM1Rst Reset signal to

SIM card

RM-412; RM-413

System Module and User Interface

Issue 1 COMPANY CONFIDENTIAL Page 6 –25