SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 65
![no-image](/images/manufacturer_photos/0/5/595/semtech_sml.jpg)
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
6.6. Temperature Sensor Registers
Table 24 Temperature Sensor Registers
6.7. Test Registers
Table 25 Test Registers
Rev 3 - Jan 2011
Name
(Address)
RegTemp1
(0x4E)
RegTemp2
(0x4F)
Name
(Address)
RegTestLna
(0x58)
RegTestDagc
(0x6F)
RegTestAfc
(0x71)
ADVANCED COMMUNICATIONS & SENSING
Bits Variable Name
Bits Variable Name
7-4 -
1-0 -
7-0 TempValue
7-0 SensitivityBoost
7-0 ContinuousDagc
7-0 LowBetaAfcOffset
3
2
TempMeasStart
TempMeasRunning
Mode
Mode
rw
rw
rw
w
r
r
r
r
Page 65
Default
Default
Value
Value
0x1B
0000
0x30
0x00
01
0
0
-
*
Description
unused
Triggers the temperature measurement when set. Always
reads 0.
Set to 1 while the temperature measurement is running.
Toggles back to 0 when the measurement has completed.
The receiver can not be used while measuring
temperature
unused
Measured temperature
Needs calibration for accuracy
Description
High sensitivity or normal sensitivity mode:
0x1B
0x2D
Fading Margin Improvement, refer to 3.4.4
0x00
0x10
0x30
AFC offset set for low modulation index systems, used if
AfcLowBetaOn=1.
Offset = LowBetaAfcOffset x 488 Hz
-1°C per Lsb
Normal mode
Improved margin, use if AfcLowBetaOn=1
Improved margin, use if AfcLowBetaOn=0
Normal mode
High sensitivity mode
DATASHEET
www.semtech.com
SX1239