Datasheet

ADF4154 Data Sheet
Rev. C | Page 14 of 24
Table 9. Control Register Map
04833-022
U3 RF POWER-DOWN
0 NORMAL OPERATION
1 POWER-DOWN
U4 LOCK DETECT PRECISION
0
1
24 PFD CYCLES
40 PFD CYCLES
I
CP
(mA)
CP3 CP2 CP1 CP0 2.7kΩ 5.1kΩ 10kΩ
0 1.18 0.63 0.32
0 2.46 1.25 0.64
0 3.54 1.88 0.96
0 4.72 2.50 1.28
0 5.9 3.13 1.59
0 7.08 3.75 1.92
0 8.26 4.38 2.23
0 9.45 5.00 2.55
1 0.59 0.31 0.16
1 1.23 0.63 0.32
1 1.77 0.94 0.48
1 2.36 1.25 0.64
1 2.95 1.57 0.8
1 3.54 1.88 0.96
1 4.13 2.19 1.12
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1 4.73 2.50 1.28
U5 PHASE DETECTOR POLARITY
0 NEGATIVE
1 POSITIVE
U2 RF CHARGE PUMP THREE-STATE
0 DISABLED
1 THREE-STATE
U1 COUNTER RESET
0 DISABLED
ENABLED1
REF
IN
DOUBLER
U6
0 DISABLED
ENABLED
1
REF
IN
DOUBLER
DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
C2 (1) C1 (0)
U1U2U3U4U5CP0CP1CP2U6S1S2S3S4
CONTROL
BITS
CHARGE PUMP
CURRENT
SETTING
PHASE
DETECTOR
POLARITY
RESYNC
LOCK DETECT
PRECISION
RF POWER-
DOWN
RF CHARGE
PUMP
THREE-STATE
RF COUNTER
RESET
DB15
CP3
CP/2
S4 S3 S2 S1 RESYNC
0 1 1
0 0 2
0 1 3
. . .
. . .
. . .
1 1 13
1 0 14
1
0
0
0
.
.
.
1
1
1
0
1
1
.
.
.
0
1
1 1 15