SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 35
SX1239IMLTRT
Manufacturer Part Number
SX1239IMLTRT
Description
IC, RF RECEIVER, 1.02GHz, QFN-24
Manufacturer
Semtech
Datasheet
1.SX1239IMLTRT.pdf
(73 pages)
Specifications of SX1239IMLTRT
Applications
Wireless Sensor Networks, Automated Meter Reading, Home And Building Automation
Receiving Current
16mA
Data Rate
300Kbps
Modulation Type
FSK, OOK
Sensitivity Dbm
-120dBm
Rohs Compliant
Yes
Rf Ic Case Style
QFN
No. Of Pins
24
Sensitivity (dbm)
-120dBm
Supply Voltage Range
1.8V To 3.6V
Operating Temperature Range
-40°C To +85°C
Lead Free Status / Rohs Status
Supplier Unconfirmed
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Upon detection of a valid packet, the sequencing is altered, as shown below:
Listen mode can be disabled by writing ListenOn to 0
4.3.4. RC Timer Accuracy
All timings of the Listen Mode rely on the accuracy of the internal low-power RC oscillator. This oscillator is automatically
calibrated at the device power-up, and it is a user-transparent process.
For applications enduring large temperature variations, and for which the power supply is never removed, RC calibration
can be performed upon user request. RcCalStart in RegOsc1 can be used to trigger this calibration, and the flag
RcCalDone will be set automatically when the calibration is over.
Rev 3 - Jan 2011
ADVANCED COMMUNICATIONS & SENSING
ListenEnd = 00
ListenEnd = 01
ListenEnd = 10
PayloadReady
ListenCriteria
Listen Mode
Listen Mode
Listen Mode
passed
Figure 18. Listen Mode Sequence (wanted signal is received)
Idle
Idle
Idle
Page 35
Rx
Rx
Rx
Idle
Mode
DATASHEET
www.semtech.com
SX1239
Rx
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