SX1233IMLTRT Semtech, SX1233IMLTRT Datasheet - Page 35

• Manufacturer Part Number: SX1233IMLTRT
• Description: RF Transceiver Extended Bands Japan-Korea
• Manufacturer: Semtech

Specifications of SX1233IMLTRT

• Transmitting Current: 95mA
• Data Rate: 600Kbps
• Rf Ic Case Style: QFN
• No. Of Pins: 24
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Receiving Current: 17mA

3.6. High Bit Rate Operations
High Bit rate operation is available in FSK mode. For operations in high bit rate, the frequency deviation should respect the
following equation:
3.6.1. 500kbps Operation
For operation at 500kbps, the following settings are recommended:
3.6.2. 600kbps Operation
For operation at 600kbps, the following settings are recommended:
Note
Rev 5 - June 2011
ADVANCED COMMUNICATIONS & SENSING
FDA = 250kHz, where FDA is the Frequency Deviation (FSK operation with a Modulation index of 1)
Crystal should be selected for a maximum of +/- 20ppm frequency stability.
Carrier frequency of the receiver should be programmed with 50kHz offset from the programmed carrier frequency of
transmitter. This offset takes into account the possible +/-20ppm drifts of Crystals. No AFC is needed.
FDA = 150kHz, where FDA is the Frequency Deviation (FSK operation with a Modulation index of 0.5)
Crystal should be selected for a maximum of +/- 15ppm frequency stability.
Carrier frequency of the receiver should be programmed with 40kHz offset from the programmed carrier frequency of
transmitter. This offset takes into account the possible +/-15ppm drifts of Crystals. No AFC is needed.
for both 500 and 600kbps operations, RegTestPll must be set to 0x0C.
FDA + BRF/2 =<500kHz, where FDA is the Frequency Deviation and BR is the Bit Rate.
Page 35
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SX1233