ETRX357HR-LRS Telegesis Ltd, ETRX357HR-LRS Datasheet - Page 23

• Manufacturer Part Number: ETRX357HR-LRS
• Description: MODULE, ZIGBEE, ETRX3, PA+LNA, HIROS
• Manufacturer: Telegesis Ltd
• Series: -r

Specifications of ETRX357HR-LRS

• Rohs Compliant: YES
• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 20dBm (100mW)
• Sensitivity: -106dBm
• Voltage - Supply: 2.1V ~ 3.6V
• Current - Receiving: 33mA
• Current - Transmitting: 140mA
• Data Interface: Solder Pad
• Memory Size: 128kB Flash, 12kB RAM
• Antenna Connector: U.FL
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

12 Physical Dimensions
For ideal RF performance when using the on-board antenna, the antenna should be located at the
corner of the carrier PCB. There should be no components, tracks or copper planes in the “keep-
out” area which should be as large as possible. When using the U.FL RF connector the “keep-out”
area does not have to be kept. NB: The modules‟ transmit/receive range will depend on the
antenna used and also the housing of the finished product.
©2011 Telegesis (UK) Ltd
Symbol
L
W
H
A1
A2
R1
R2
X1
X2
Explanation
Length of the module
Width of the module
Height of the module
Distance centre of pad PCB edge
Pitch
Keep-out Zone from corner of PCB
Keep-out Zone from corner of PCB
Distance centre of Antenna connector PCB edge
Distance centre of Antenna connector PCB edge
Table 16. ETRX3 Physical Dimensions
Figure 6. ETRX3 Physical Dimensions
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ETRX351-LRS and ETRX357-LRS
ETRX35x-LRS Product Manual
Distance
25.0mm
19.0mm
1.27mm
17.5mm
3.0mm
0.9mm
4.1mm
3.8mm
2.8mm