ADF4154 Analog Devices, ADF4154 Datasheet - Page 13

• Manufacturer Part Number: ADF4154
• Description: Fractional-n Frequency Synthesizer
• Manufacturer: Analog Devices

Table 9. R-Divider Register Map
P3
0
1
LOAD CONTROL
NORMAL OPERATION
LOAD FAST-LOCK TIMER
DB23 DB22 DB21
P3
M3
0
0
0
0
1
1
1
1
M3
MUXOUT
M2
M2
0
0
1
1
0
0
1
1
DB20 DB19
M1
P1
0
1
M1
0
1
0
1
0
1
0
1
P2
DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10
P1
PRESCALER
4/5
8/9
MUXOUT
THREE-STATE OUTPUT
DIGITAL LOCK DETECT
ANALOG LOCK DETECT
N-DIVIDER OUTPUT
LOGIC HIGH
LOGIC LOW
R-DIVIDER OUTPUT
FAST-LOCK SWITCH
R4
R4
0
0
0
0
.
.
.
1
1
1
1
4-BIT R COUNTER
R3
R3
0
0
0
1
.
.
.
1
1
1
1
R2
R2
0
1
1
0
.
.
.
0
0
1
1
R1
M12
0
0
0
.
.
.
1
1
1
1
M12
Rev. 0 | Page 13 of 20
R1
1
0
1
0
.
.
.
0
1
0
1
M11
M11
0
0
0
.
.
.
1
1
1
1
RF R-COUNTER
DIVIDE RATIO
1
2
3
4
.
.
.
12
13
14
15
M10
12-BIT INTERPOLATOR MODULUS VALUE (MOD)
M10
0
0
0
.
.
.
1
1
1
1
M9
DB9
..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
M8
DB8
M7
M3
0
0
1
.
.
.
1
1
1
1
DB7
M6
DB6
M5
M2
1
1
0
.
.
.
0
0
1
1
DB5
M4
M1
0
1
0
.
.
.
0
1
0
1
DB4
M3
DB3
M2
INTERPOLATOR
MODULUS VALUE (MOD)
2
3
4
.
.
.
4092
4093
4094
4095
DB2
M1
C2 (0) C1 (1)
ADF4154
DB1
CONTROL
BITS
DB0