Datasheet

REV. B
ADF4252
–15–
Table IV. RF R Divider Register Map
INTERPOLATOR MODULUS
M12 M11 M10 M3 M2 M1 VALUE (MOD) DIVIDE RATIO
000.......... 0102
000.......... 0113
000.......... 1004
............. ....
............. ....
............. ....
111.......... 1004092
111.......... 1014093
111.......... 1104094
111.......... 1114095
RF R COUNTER
R4 R3 R2 R1 DIVIDE RATIO
00011
00102
00113
.....
.....
.....
110113
111014
111115
P2 RF REF
IN
DOUBLER
0DISABLED
1ENABLED
DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
C2 (0) C1 (1) M1M2M3M4M5M6M7
M8
M9M10M11M12R1R3R4P2
P3
CONTROL
BITS
12-BIT INTERPOLATOR MODULUS VALUE (MOD)
C3 (0)
4-BIT RF R COUNTER
R2
RF REF
IN
DOUBLER
PRE-
SCALER
P3 RF PRESCALER
0 4/5
1 8/9