ETRX357 Development Kit
©2016 Silicon Labs
- 4 -
ETRX357DVK Product Manual (Rev 1.12)
2
Absolute Maximum Ratings of the Devboard
Parameter
Min.
Max.
Units
Condition
Supply Voltage V
DD
-0.3
9
V
Voltage on any I/O pin
-0.3
3.3
V
Storage Temperature range
-50
85
°C
Without batteries inserted
Table 1: Absolute Maximum Ratings
The absolute maximum ratings given above should under no circumstances be violated. Stress
exceeding one or more of the limiting values may cause permanent damage to the device.
Caution! ESD sensitive devices. Precautions should be used when handling the device
in order to prevent permanent damage.
3
Operating Conditions of the Devboard
Typical values at 5V 25°C.
Parameter
Min. Typ. Max. Units
Condition
Supply Voltage, V
DD
4
5
6
V
Supply Current
150
mA
TX with LRS-Module
Operating ambient temperature range
-20
25
40
°C
Range may be more
limited when batteries
are inserted. Consult
datasheets applicable
to your batteries
Table 2. Operating Conditions
The voltage regulators used are protected against overtemperature and overcurrent.
4
Electrical Specifications
4.1 Power supplies
Only use a mains adaptor that has been certified as a low power source according to IEC60950-1.
The power from the USB connection should be restricted in line with the requirements of IEC 60950-
1. PCs approved to IEC 60950-1 will meet this requirement.
Only good quality (vented) alkaline batteries should be used. Ensure they are inserted with the
correct polarity. Note that they may restrict the working temperature range of the equipment.
4.2 ZigBee modules
See ETRX357 and ETRX357-LRS Product Manuals