SX1231-31SKB868-EVAL Semtech, SX1231-31SKB868-EVAL Datasheet - Page 28
SX1231-31SKB868-EVAL
Manufacturer Part Number
SX1231-31SKB868-EVAL
Description
development tool usb kit for sx1231 transceiver...
Manufacturer
Semtech
Datasheet
1.SX1231-31SKB433.pdf
(84 pages)
- Current page: 28 of 84
- Download datasheet (2Mb)
3.5.10. Cordic
The Cordic task is to extract the phase and the amplitude of the modulation vector (I+j.Q). This information, still in the
digital domain is used:
Rev 4 - Nov 2010
ADVANCED COMMUNICATIONS & SENSING
Phase output: used by the FSK demodulator and the AFC blocks.
Amplitude output: used by the RSSI block, for FSK demodulation, AGC and automatic gain calibration purposes.
Magnitude
Figure 8. Cordic Extraction
Real-time
Page 28
Q(t)
Real-time Phase
I(t)
DATASHEET
www.semtech.com
SX1231
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