ETRX2HR-PA Telegesis Ltd, ETRX2HR-PA Datasheet - Page 16

• Manufacturer Part Number: ETRX2HR-PA
• Description: MODULE
• Manufacturer: Telegesis Ltd

Specifications of ETRX2HR-PA

• Module Applications: AMR, Building Automation, Wireless Sensor Network, M2M Industrial Controls
• Mcu Supported Families: EM250
• Processor Type: EM250
• Wireless Protocol: IEEE 802.15.4
• Data Rate: 250Kbps
• Module Interface: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1
2
3
4
5
6
7
8
9
10
11
12
13
14
The conditions for compliance are:
Please Note: The average current consumption during operation is dependent on the firmware
and the network load, therefore these figures are given in the command dictionary of the
respective firmware.
©2009 Telegesis (UK) Ltd
No.
(1)
(2)
(3)
Supply voltage
RF Input Frequency
RF Input Power
EM250 Tx power mode
setting
EM250 Tx output power
setting
EM250 Tx output power
setting(2)
EM250 Tx output power
setting(2)
Typical module output
power corresponding to
Item 5. For more details
see part 11.1.
Tx Duty Cycle
Logic Input Voltage Low
Logic Input Voltage High
Voltage Level on any of
the A/D Inputs
SPI clock rate
Operating temperature
range
BOOST MODE is allowed with some restrictions:
In order to stay within the output power limits of 20dBm and -30dBm PSD mask
absolute (IEEE802.15.4) the power setting value is limited to 0dBm, the maximum
supply voltage is limited to 3.3V and the operating temperature is limited to
temperatures above 0°C.
On the lowest channel 11 (2405 MHz) and the highest channel 26 (2480 MHz) the
maximum allowed output power settings are limited to the maximum values stated
above in order to not exceed the spectral power limits at the 2.4GHz ISM band edges
under extreme conditions as stated in part 4.3.3 “Frequency Range” of [1]
With these settings and duty cycles below 10% the limits for “Maximum Spectral Output
Power density” according to part 4.3.2 of [1] are not exceeded. For lower antenna gain
and/or lower TX output power the duty cycle may be increased according to the
formula in [1].
Item
The typical value
Channels 12-25
Channel 11
Channel 26
Channels 12-25
NORMAL MODE
BOOST MODE
Maximum output
power set and 0dBi
Antenna (3)
is recommended
Condition /
Remark
Table 4. Operating Conditions
- 16 -
V
f
p
NORMAL MODE or BOOST MODE(1) and
external PA
p
p
p
p
V
V
VA/D
f
T
Symbol
C
SPI
IN
OUTSET
OUTSET
OUTSET
OUT
op
DD
IL
IH
2.7
2405
-43
-43
-43
-22
-21
0
0.8x
VBAT
-40
ETRX2PA Product Manual (Rev 1.07)
Min
Value
3.3
Typ
3.5
2480
0
+3
-3
-14
+17.5
+18.5
10
0.2x
VBAT
VBAT
1.2
12
+85
Max
Vdc
MHz
dBm
dBm
dBm
dBm
dBm
%
V
V
V
MHz
°C
Unit
ETRX2PA