User Guide

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
4/ Vout DC out DC 2.78V 70 mA 100mΩ (PWB+
conn.)
200mW
2.5V 90mA
9 / XMIC N Audio in 300-8k 1Vpp &
2.5-2.78VDC
10 / XMIC P Audio in 300-8k 1Vpp &
2.5-2.78VDC
11 / HEAR N Audio out 20-20k 1Vpp 22Ω
12 / HEAR P Audio out 20-20k 1Vpp 22Ω
13 / HEAR R N Audio out 20-20k 1Vpp 22Ω Not conn. in
mono
14 / HEAR R P Audio out 20-20k 1Vpp 22Ω Not conn. in
mono
SIM connections
Table 14 SIM IF connections
Pin Signal I/O Engine connection Notes
C1 VSIM Out Retu VSIM1 Supply voltage to SIM card, 1.8V
or 3.0V.
C2 SIMRST Out Retu SIM1Rst Reset signal to SIM card
C3 SIMCLK Out Retu SIM1ClkC Clock signal to SIM card
C5 GND - GND Ground
C7 SIMDATA In/Out Retu SIM1DaC Data input /output
RM-86
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