User Guide

CCS Technical Documentation System Module and User Interface
NPM-6/6X
Issue 2 06/03 Nokia Corporation. Page 17
Keyboard (board-to-board) Connector
TXQP / TXQN UEM Helga Same as TXIP / TXIN
AFC UEM VCTCXO Voltage Min.
Max
0.0
2.4
0.1
2.55
V Automatic fre-
quency control
svoltage for the
VCTCXO
Source imped-
ance
200 ohm
Load
resistance
capacitance
1
100
kohm
nF
Resolution 11 bits
TXC UEM Helga Voltage Min.
Max
2.4
0.1 V Transmitter power
level and ramping
control
Source imped-
ance
200 ohm
Load
resistance
capacitance
5
15
kohm
pF
Resolution 10 bits
RFTemp Helga UEM Voltage at -20
deg.C 1,57
V Temperature sen-
sor of the RF.
Voltage at +25
deg.C
1,7
Voltage at +60
deg.C 1,79
Pin Signal Min. Nom Max Condition Note
1 VLED+ 7.2 V 0V
7.7 V
8.4 V LED off
LED on
Supply Voltage for Keyboard
LEDs
2 VLED-
(GND)
0.2 V 0V 0.35 V LED off
LED on
LED Katode Voltage
3 VLED+ 7.2 V 0V
7.7 V
8.4V LED off
LED on
Supply Voltage for Keyboard
LEDs
4 KEYB2 0.293V 0.309V 0.324V 25°C Ambient temp. sensor on KU4
5 Not connected
6 GND 0V