Table of Contents
Advertisement
DSB45 Development Support Box
Confidential / Released
6
Technical data of DSB45 Development Support Box
The technical data listed below apply to the default settings of the DSB45 switches.
Table 22: DSB45 maximum ratings
Parameters
Supply voltage
Operating temperature
Storage temperature
Table 23: DSB45 technical data
Parameters
Supply current peak
Supply current
average
Supply voltage
V
output voltage
BATT+
VL
switched logic high
level voltage (on if
GSM module on)
3V3
Supply voltage of
DSB45 circuits
+5V
Audio interface supply
voltage
RS-232 interfaces
RF attenuation
DSB45_HD_V05
Condition
Laboratory PSU
Condition
Laboratory PSU
requirements during
GSM transmission
Nominal supply voltage
for the GSM module
(adjustable)
Minimum supply
voltage for the GSM
module
(adjustable)
Maximum supply
voltage for the GSM
module
Audio interface supply
voltage
Output voltage range
(load resistance
3 kΩ)
Output short-circuit
current
Input resistance
Adapter between RF
connector X505 (type
Hirose U.FL-R-SMT)
and RF connector X506
Page 38 of 50
Min.
Max.
-0.5
+25
+15
+35
-40
+85
Min.
Typical
8.5
9
1.25
4.1
(default)
1.25
3.5
(default)
4.45
4.5
3.17
3.25
3.17
3.25
4.75
5.0
± 4.0
± 5.0
± 30
3
5
0.1
s
Unit
V
°C
°C
Max.
Unit
1
A
800
mA
9.5
V
4.2
V
4.2
V
4.55
V
3.3
V
3.3
V
5.25
V
V
± 60
mA
7
kΩ
0.2
dB
01.02.2008
Advertisement
Table of Contents
