User Guide

Figure 79 Vibra circuitry

Pop-port

connector

Pop-Port

connector provides a fully differential 4–wire stereo line-level output connection and fully

differential 2-wire mono line-level or microphone level input connection.

The handsfree driver is located in EM ASIC (N2200). The gain of the handsfree driver in the differential mode

is 6 dB.

The earpiece and headset signals are multiplexed so that the outputs cannot be used simultaneously.

Figure 80 External audio connector

Table 13 Audio connector pin assignments

Pin #/ Signal

name

Signal

description

Spectral range Voltage/

Current levels

Max or nominal

serial

impedance

Notes

1/ Charge V Charge DC 0-9V/ 0.85A

2/ GND Charge GND - 0.85A 100mΩ (PWB+

conn.)

3/ ACI ACI 1kbits/s Digital 0 / 47Ω Insertion &

removal

detection

2.5-2.78V

RM-49

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