Sundance SMT349 - Manual (Page 26)

Version 2.1 Page 26 of 32 SMT349 User Manual
12.4.6 IF/RF Synthesizer Register 2 – 0x5.
For more details, refer to Si4136 datasheet.
IF/RF Synthesizer Register 2 – 0x05
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 Reserved
Default ‘00000000’
0 Reserved PDIB PDRB
Default ‘000000’ ‘0’ ‘0’
IF/RF Synthesizer Register 2 – 0x05
Setting Bit 0 Description – PDRB (Powerdown RF Synthesizer)
0 ‘0’ RF Synthesizer powered down.
1 ‘1’ RF Synthesizer on.
Setting Bit 1 Description – PDIB (Powerdown IF Synthesizer)
0 ‘0’ IF Synthesizer powered down.
1 ‘1’ IF Synthesizer on.
12.4.7 IF/RF Synthesizer Register 3 – 0x6.
For more details, refer to Si4136 datasheet.
IF/RF Synthesizer Register 3 – 0x06
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
2 Reserved NRF1
Default Reserved ‘0’
1 NRF1
Default ‘00000000’
0 NRF1
Default ‘00000000’
IF/RF Synthesizer Register 3 – 0x06
Setting Bit 17…0 Description – NRF1 (N Divider for RF1 Synthesizer)
0 NRF1 > 992