Si4122 ETC, Si4122 Datasheet - Page 21

• Manufacturer Part Number: Si4122
• Description: DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS
• Manufacturer: ETC

Control Registers
Note: Registers 9–15 are reserved. Writes to these registers may result in unpredictable behavior. Any register not listed here
Register Name
15
0
1
2
3
4
5
6
7
8
9
.
.
.
is reserved and should not be written.
Main
Configuration
Phase
Detector Gain
Power Down
RF1
N-Divider
RF2
N-Divider
IF N-Divider
RF1
R-Divider
RF2
R-Divider
IF R-Divider
Reserved
Reserved
Bit
17
0
0
0
0
0
0
0
0
Bit
16
0
0
0
0
0
0
0
Bit
15
0
0
0
0
0
0
Bit
14
0
0
0
0
0
0
Table 12. Register Summary
AUXSEL
Bit
13
0
0
0
0
0
[1:0]
Bit
12
0
0
Bit
11
0
0
IFDIV
Rev. 1.1
[1:0]
Bit
10
0
0
Bit
0
0
0
9
N
RF1
N
Bit
8
0
0
0
RF2
[17:0]
N
IF
Bit
[16:0]
0
0
0
7
[15:0]
R
R
Bit
0
0
0
R
6
RF1
RF2
IF
[12:0]
LPWR
[12:0]
[12:0]
Bit
K
0
5
PI
[1:0]
Bit
0
0
4
AUTO
PDB
Bit
K
3
0
P2
[1:0]
AUTO
Si4133
Bit
K
0
2
P
PWR
PDIB
Bit
RF
K
1
P1
[1:0]
PDRB
Bit
0
0
21