SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 65

• Manufacturer Part Number: SX1239IMLTRT
• Description: IC, RF RECEIVER, 1.02GHz, QFN-24
• Manufacturer: Semtech

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