V
TECH
E
NGINEERING
C
ANADA
L
TD
.
TITLE
Product Specification
MODEL
VTH1930 (Wireless Headset Phone)
Reference: PRC 00B6
Revision: 0
Page: 27 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
6.3
Headset Audio Specifications
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
*
Transmit Objective Loudness Rating (TOLR)
1
TBD
dB
*
Receive Objective Loudness Rating (ROLR)
1,2
TBD
dB
*
Sidetone Objective Loudness Rating (SOLR)
3
TBD
dB
*
Receive volume adjustment range
TBD
dB
*
Transmit Direction Acoustic Overload (into
microphone)
4
TBD
dBspl
*
Receive Direction Acoustic Overload (from receiver)
4
TBD
dBspl
Transmit Direction Noise
5
20
dBrnC
Receive Direction Noise
2,5
35
dB(A)
Peak Acoustic Pressure
6
TBD
dBspl
Notes:
1. Tested using 0kft of simulated telephone line
2. Tested at normal (low) volume level
3. Base unit connected to 0kft of simulated telephone line terminated with 900
Ω
4. Acoustic level that results in 5% THD, measured at 1kHz through a 5kHz
lowpass filter
5. Handset isolated from sound input and mechanical disturbances
6. Tested at high volume level
