SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 67

• 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

7.2.2. Manual Reset
A manual reset of the SX1239 is possible even for applications in which VDD cannot be physically disconnected. Pin 6
should be pulled high for a hundred microseconds, and then released. The user should then wait for 5 ms before using the
chip.
Note
7.3. Reference Design
Please contact your Semtech representative for evaluation tools, reference designs and design assistance. Note that all
schematics shown in this section are full schematics, listing ALL required components, including decoupling capacitors.
Note
Rev 3 - Jan 2011
ADVANCED COMMUNICATIONS & SENSING
whilst pin 6 is driven high, an over current consumption of up to ten milliamps can be seen on VDD.
In very cost-sensitive and/or size-constrained applications where it is acceptable to degrade the receiver sensitivity
by approximately 2 dB, L1 and C1 can be omitted.
VDD
Pin 6
(input)
Figure 35. Manual Reset Timing Diagram
Figure 36. Application Schematic
High-Z
> 100 us
Page 67
’’1’’
High-Z
Wait for
5 ms
Chip is ready from
this point on
DATASHEET
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SX1239