User Guide

After Sales
Technical Documentation
Handsfree Desktop Charger CHH–7
Original, 11/94Page 10
Table 13. System Connector X701 (continued)
MAXIMUMTYPICAL/
NOMINAL
MINIMUMPARAMETERLINE
SYMBOL
PIN
3 HOOK Selects handsfree
operation
0V 0V 0V
6 VC Supply / Charging 11V
730mA
12V
800mA
13V
830mA
10 GND Power supply ground 0V 0V 0V
4 XEAR /
HFJPWR
Earphone signal
dc–level
input impedance 10kΩ
130mV
2.5V
CHH–7 power switch 5.0V (power off)
2.5V (power on)
0.8V (test mode for
power off watch–dog)
1 VC Supply / Charging 11V
730mA
12V
800mA
13V
870mA
2 XEXAUD Not used
Table 14. Data Connector X510
PIN LINE
SYMBOL
PARAMETER MINIMUM TYPICAL/
NOMINAL
MAXIMUM
2 +VD Supply voltage
Supply current
9.6V 10.0V 10.4V
50mA
3 DGND Supply power ground 0V 0V 0V
4 M2BUS Serial bidirection data 0V
3.0V
0V
3.6V
0.2V
4.7V
0.7V Input ”0” state
5.25V Input ”1” state
0.35V Output ”0” state
5.25V Output ”1” state
1, 5 Not Used
6 Not Used
7 AGND analogue ground 0V 0V 0V
8 XMIC Microphone signal
dc–level
output impedance
200mV
2.5V
700Ω
9 XEAR Earphone signal
dc–level
input impedance 10kΩ
130mV
2.5V