SX1232
WIRELESS & SENSING
DATASHEET
4.2.6. Receiver Hopping, Rx to Rx
Two methods are possible:
First method
Timeline
0
TS_HOP
+TS_RE
Rx Mode,
Channel B
Rx Mode,
Channel A
1. set new Frf
2. set RestartRxWithPllLock
Second method
Timeline
0
~TS_HOP
1. set FastHopOn=1
2. set new Frf (*)
3. wait for TS_HOP
Rx Mode,
Channel B
Rx Mode,
Channel A
(*) RegFrfLsb must be written to
trigger a frequency change
Figure 19. Receiver Hopping
The second method is quicker, and should be used if a very quick RF sniffing mechanism is implemented.
4.2.7. Tx to Tx
Timeline
~PaRamp
+TS_HOP
~PaRamp
+TS_HOP
+TS_TR
0
Tx Mode,
Channel B
Tx Mode,
Channel A
1. set new Frf (*)
2. set FSTx mode
Set Tx mode
FSTx
Figure 20. Transmitter Hopping
Rev 3 - August 2012
Page 41
www.semtech.com
SEMTECH [ SEMTECH CORPORATION ]
