V
TECH
E
NGINEERING
C
ANADA
L
TD
.
TITLE
Product Specification
MODEL
VTH1930 (Wireless Headset Phone)
Reference: PRC 00B6
Revision: 0
Page: 26 of 31
This document is proprietary to V
TECH
E
NGINEERING
C
ANADA
L
TD
.
Specifications are preliminary and are subject to change without notice.
21146
5 Electrical Specifications
5.1
Operating Conditions
Parameter
Min
Typ
Max
Units
Operating Temperature Range
0
25
1
50
°
C
Base Unit Operating Voltage (AC Voltage, 60Hz)
96
120
1
144
Vrms
Base Unit Operating Voltage (AC Adapter Output)
9
1
Vdc
Handset Operating Voltage
2
3.2
3.6
1
4.2
Vdc
Notes:
1. Typical value represents the nominal testing value
2. Handset operates from a 3-cell NiMH Battery
6.2
DC Electrical Characteristics
Specifications marked with * are guaranteed at the nominal testing temperature and voltage on
all units with the use of automated production test equipment (ATE)
Parameter
Min
Typ
Max
Units
*
Base Unit Current - Standby Mode
1,2
TBD
mA
*
Base Unit Current - Talk Mode
1,2
TBD
mA
Handset Current - Sleep Mode
1
3
mA
*
Handset Current - Wake Mode
45
70
mA
*
Handset Current - Talk Mode
65
101
mA
*
Handset Sleep Duration - Standby Mode
750
1150
ms
Handset Wake Duration - Standby Mode
52
60
ms
*
Low Battery Detection Threshold (HS)
3.4
Vdc
*
MCU Shutdown Threshold (HS)
3.2
Vdc
Handset Standby Time
6
Days
Handset Continuous Talk Time
7
Hours
*
Loaded Cradle Charge Contact Voltage
3
3.3
4.3
V
*
Loaded Spare Battery Charge Contact Voltage
3
1.7
2.5
V
Notes:
1. DC current from 9v power supply
2. Cradle and spare battery charge currents = 0mA
3. Voltage measured across a 50
Ω
charge circuit load resistor
