User Guide

NPE-3
System Module PAMS Technical Documentation
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Table 1. Signals of the system connector
Pin Name Min Typ Max Unit Notes
1VIN 0
0
8.5
850
V
mA
Unloaded Fast Charger
Supply current
0 15.0
1.0
Vpeak
Apeak
Unloaded Standard Charger
Supply current
2 GND 0 0 0 V Supply ground DC Jack
3VIN 0
0
8.5
850
V
mA
Unloaded Fast Charger DC Jack
Supply current
4 CHRG_
CTRL
0
1.7
0.8
2.9
V Charger control (PWM) dig. Low DC Jack
Charger control (PWM) dig. High
1 32 37 Hz PWM frequency for a fast charger
1 99 % PWM duty cycle
5 CHRG_
CTRL
0
1.7
0.8
2.9
V Charger control (PWM) dig. Low Bottom charger
contacts
Charger control (PWM) dig. High
1 32 37 Hz PWM frequency for a fast charger
1 99 % PWM duty cycle
6 MICP 0 2 100
mV
Connected to COBBA_GJP MIC2P input.
7 MICN 0 2 100
mV
Connected to COBBA_GJP MIC2N input.
8XMIC 2.0 2.2
kΩ
Input AC impedance
1 Vpp Maximum signal level
0 1.55 V Mute (output DC level)
2.5 2.9 V Unmute (output DC level)
100 600 µABias current
HMIC 200
Ohm-
Vpp
Microphone signal
Connected to COBBA_GJP MIC3N + 1N input
9SGND 47
Ohm
Output AC impedance (ref. GND)
380
Ohm
Resistance to phone ground, return path for
XMIC/HMIC. Also used for DLR3 data cable.
10 XEAR 47
Ohm
Output AC impedance (ref. GND)
10 µF Series output capacitance
16 300
Ohm
Load AC impedance to GND (Headset) pin #14
4.7 10
kΩ
Load AC impedance to GND (Accessory) pin #14
1.0 Vpp Maximum output level (no load)