User Guide

CC Technical Documentation System Module
NPM-10 (3595)
Issue 2 03/2004 ©2004 Nokia Corporation Confidential Page 15
External Signals and Connections
System Connector (X102)
DC-OUT (J307,J308 and J309)
Table 14: DC Connector
Pin Signal Min Nom Max Condition Note
2 VCHAR - 11 .1 V
peak
16.9 V
peak
7.9 V
RMS
1.0 A
peak
Standard
charger
(ACP-7)
Charger positive
input
7.0
V
RMS
8.4 V
RMS
9.2 V
RMS
850 mA
Fast charger
1 CHGND - 0 - Charger ground
Table 15: External Speaker, Differential Output XEARP(HF) and XEARN (HFCM)
Signal Min Nom Max Units Note
Output voltage swing*
* seen from transducer side
2.0 - - Vpp Differential output, with 60 dB
signal to total distortion ratio
Common voltage level for HF
output (HF & HFCM) VCMHF
0.75 0.8 0.85 V
Load resistance (HF to HFCM) 30 - - W
Load capacitance (HF to HFCM) - - 10 nF
Table 16: Headset Detection
Signal Min Nom Max Condition Note
HookInt O V - 2.86 V
(VANA)
Headset button call control, con-
nected to UEMAD-converter
HeadInt 0 V - 2.86 V
(VANA)
Accessory detection, connected
to UEMAD-converter
Table 17: DC-OUT Connections
Pad Name Parameter Min Typ Max Unit Notes
J307 Power Voltage (open) - - Vbat V Output power line
Current (short) 56 64 72 mA
J308 CTI
(Input)
Resistor value 30.9 - 750 kΩ Cover detection
J309GND- ----Ground