Datasheet
Table Of Contents
- Features
- Applications
- General Description
- Functional Block Diagram
- Revision History
- Specifications
- Absolute Maximum Ratings
- Pin Configuration and Function Descriptions
- Typical Performance Characteristics
- Circuit Description
- Register Maps
- Register 0
- Register 1
- Register 2
- Register 3
- Register 4
- Initialization Sequence
- RF Synthesizer—A Worked Example
- Modulus
- Reference Doubler and Reference Divider
- 12-Bit Programmable Modulus
- Cycle Slip Reduction for Faster Lock Times
- Spurious Optimization and Fast lock
- Fast Lock Timer and Register Sequences
- Fast Lock—An Example
- Fast Lock—Loop Filter Topology
- Spur Mechanisms
- Spur Consistency and Fractional Spur Optimization
- Phase Resync
- Applications Information
- Outline Dimensions
ADF4150 Data Sheet
Rev. A | Page 14 of 28
Figure 20. Register 0 (R0)
Figure 21. Register 1 (R1)
N16 N15 ...
N5
N4 N3
N2 N1
INTEGER VALUE (INT)
0
0 ... 0 0 0 0 0 NOT ALLOWED
0 0 ...
0 0
0
0 1
NOT ALLOWED
0
0 ...
0
0 0
1 0
NOT ALLOWED
. . ... . . . . . ...
0
0
... 1
0 1
1
0 NOT ALLOWED
0
0 ...
1 0
1
1 1
23
0
0 ...
1
1 0
0 0
24
. .
...
. .
. .
.
...
1
1
... 1
1 1
0
1 65533
1 1 ... 1 1 1 1 0 65534
1 1
... 1
1
1 1
1 65535
F12 F11
.......... F2
F1 FRACTIONAL VALUE (FRAC)
0 0
..........
0 0
0
0
0 ..........
0
1 1
0
0 .......... 1 0 2
0
0 .......... 1 1 3
. . .......... . . .
.
. ..........
. .
.
. . .......... . . .
1
1 ..........
0
0 4092
1 1 .......... 0 1 4093
1 1 .......... 1 0 4094
1 1 .........
1 1
4095
DB31
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
N16 N15
N14
N13 N12
N11 N10
N9
RESERVED
16-BIT INTEGER VALUE (INT) 12-BIT FRACTIONAL VALUE (FRAC)
CONTROL
BITS
N8
N7
N6 N5 N4 N3 N2 N1 F12 F11 F10 F9 F8
F7 F6
F5
F4 F3
F2
F1 C3(0)
C2(0) C1(0)
INTmin = 75 with prescaler = 8/9
08226-016
P12 P11
.......... P2 P1
PHASE VALUE (PHASE)
0 0 ..........
0
0 0
0
0 .......... 0 1 1 (RECOMMENDED)
0 0 .......... 1 0 2
0 0
.......... 1 1
3
. . .......... . .
.
. .
.......... . . .
. . .......... . .
.
1
1 .......... 0 0 4092
1 1 .......... 0 1
4093
1 1 ..........
1 0 4094
1 1 .......... 1
1 4095
DB31 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
0 0 0
PR1 P12 P11
P10 P9
12-BIT PHASE VALUE (PHASE)
12-BIT MODULUS VALUE (MOD)
CONTROL
BITS
P8
P7 P6
P5 P4 P3
P2 P1 M12
M11 M10 M9 M8 M7 M6 M5
M4 M3 M2
M1 C3(0) C2(0) C1(1)
RESERVED
M12 M11 ..........
..........
..........
..........
..........
..........
..........
..........
..........
..........
M2 M1 INTERPOLATOR MODULUS (MOD)
0 0 1 0 2
0 0
1 1 3
.
. .
. .
.
. . . .
. . . . .
1 1
0 0 4092
1
1 0
1 4093
1 1 1
0 4094
1 1 1
1 4095
PRESCALER
P1 PRESCALER
0 4/5
1 8/9
DBR DB
R
08226-017