
TC32306FTG
2015-10-01
30
6.6.1 RF-Transmitting Abstract
Table 6-29 RF-Transmitting Function Abstracts
Item
Function
Modulation
FSK / ASK
Deviation (FSK)
Unmodulated - +/-105 kHz (315MHz Band)
Unmodulated - +/-157.5 kHz (434MHz Band)
Unmodulated - +/-315kHz (868 / 915MHz Band)
* 64 steps in each frequency band. (Including unmodulated)
RF-Transmitting Frequency Band
315, 434, 868 / 915 MHz
Output Level
Coarse: 4 steps
Fine: 16 steps
Fig 6-11 Transmitter Block Diagram
6.6.2 RF Signal Modulation
TC32306FTG is available 2 modulation, FSK and ASK to be set by register:h'0A[D4].
Table 6-30 RF Signal Modulation
h'0A[D5]RX_TX
h'0A[D4]FSK_ASK
Modulation
0
XX
RX
1
0
FSK (TX)
1
1
ASK (TX)
XX: About RX, see Table 6-18
6.6.3 FSK Modulation
To select FSK, set register:h’0A[D4] to “0”(FSK). TC32306FTG operates FSK modulation at PLL block
with DATA_IO pin input signal. In FSK setting, the deviation is set by the register:h'12[D7:D2]Dev5..0.
Available frequency deviation steps are different at each RF frequency band.
Divider
PA
PLL
VCO
Matching
Network
PA_OUT
A_VDD_3V
DATA_IO
ASK
FSK