ADF4157 AD [Analog Devices], ADF4157 Datasheet - Page 14

• Manufacturer Part Number: ADF4157
• Description: High Resolution 6 GHz Fractional-N Frequency Synthesizer
• Manufacturer: AD [Analog Devices]

ADF4157
DB31
CPI4
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
C1
0
1
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
CPI3
CYCLE SLIP
REDUCTION
DISABLED
ENABLED
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
CPI2
C1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CPI4 CPI3 CPI2 CPI1
CPI1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
CURRENT
SETTING
5.1kΩ
0.31
0.63
0.94
1.25
1.57
1.88
2.19
2.5
2.81
3.13
3.44
3.75
4.06
4.38
4.69
5
I CP (mA)
P1
0
1
0
PRESCALER
4/5
8/9
P1
U2
U2
0
1
U1
R DIVIDER
DISABLED
ENABLED
U1
0
1
Figure 19. R Divider Register (R2) Map
REFERENCE
DOUBLER
DISABLED
ENABLED
R5
5-BIT R-COUNTER
R5
0
0
0
0
1
1
1
0
.
.
.
R4
R4
Rev. 0 | Page 14 of 20
0
0
0
0
1
1
1
0
.
.
.
R3
R3
0
0
0
1
1
1
1
0
.
.
.
R2
R2
0
1
1
0
0
1
1
0
.
.
.
R1
R1
1
0
1
0
1
1
0
.
.
.
.
0
R COUNTER DIVIDE RATIO
1
2
3
4
29
30
31
32
0
0
0
0
RESERVED
0
0
0
0
0
0
0
C3(0) C2(1) C1(0)
CONTROL
BITS