SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 71

• 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

9.2.2. Exiting Listen Mode
In the SX1239 V2a, the following procedure was requested to exit Listen mode:
Listen mode can simply be exited on the SX1239 V2b by resetting bit ListenOn to 0 in RegListen.
9.3. OOK Floor Threshold Default Setting
The following default value modification was required on the V2a silicon:
It is not required to modify this register any more on the SX1239 V2b.
9.4. AFC Control
The following differences are observed between silicon revisions V2a and V2b:
9.4.1. AfcAutoClearOn
On the SX1239 V2a, it is required to manually clear AfcValue in RegAfcFei, when the device is in Rx mode.
AfcAutoClear function is fully functional on the silicon version V2b.
9.4.2. AfcLowBetaOn and LowBetaAfcOffset
Those two bits enable a functionality that was not available on the silicon version V2a.
9.5. ContinuousDagc
This register enables a functionnality that is only available in the silicon version V2c.
Rev 3 - Jan 2011
ADVANCED COMMUNICATIONS & SENSING
For all three ListenEnd settings (i.e. even for 00 and 01) disabling Listen mode can be done
anytime by writing all together in a single SPI write command (same register) :
Mode to the wanted operation mode
ListenOn to 0
ListenAbort to 1
Figure 42. Exiting Listen Mode in SX1239 V2a
Figure 43. RegTestOok Description
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