ADF4154 Analog Devices, ADF4154 Datasheet - Page 11

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

REGISTERS
Table 6. Register Summary
Table 7. Noise and Spur Register
DB23
DB23 DB22
FL1
P3
DB22
M3
N9
MUXOUT
DB21
DB21
M2
N8
DB20
DB20 DB19 DB18
M1
N7
9-BIT RF INTEGER VALUE
DB19
P2
N6
DB18
N5
P1
DB10
DB9, DB8, DB7, DB6, DB2
00000
11100
11111
T9
DB17 DB16 DB15 DB14
DB17
N4
R4
R COUNTER
DB9
DB16 DB15
T8
N3
R3
4-BIT
NOISE AND SPUR
DB15
0
N2
DB8
R2
T7
MODE
DB14
DB14
RESERVED
N1
0
R1
DB7
T6
NOISE AND SPUR SETTING
LOWEST SPUR MODE
LOW NOISE AND SPUR MODE
LOWEST NOISE MODE
DB13
DB13
F12
DB13
M12
0
DB6
T5
Rev. 0 | Page 11 of 20
DB12 DB11 DB10
DB12 DB11
F11
DB12
M11
0
DB5
T4
F10
RESERVED
DB11 DB10
U6
M10
DB10, DB5, DB4, DB3
0
THESE BITS MUST BE SET TO 0
FOR NORMAL OPERATION.
DB4
T3
DB10
CP3
DB10
T9
F9
M9
DB3
T2
12-BIT RF FRACTIONAL VALUE
DB9
CP2
DB9
T8
DB9
DB9
F8
M8
CP CURRENT
NOISE AND SPUR
12-BIT MODULUS
SETTING
DB2
CP1
T1
DB8
DB8
DB8
DB8
T7
F7
MODE
M7
RESERVED
RESERVED
DB7
C2 (1)
CP0
DB7
DB1
DB7
F6
DB7
T6
CONTROL
M6
BITS
DB6
DB6
T5
U5
DB6
C1 (1)
F5
DB6
M5
DB0
DB5
T4
DB5
U4
DB5
DB5
F4
M4
RESERVED
DB4
T3
DB4
DB4
F3
DB4
U3
M3
DB3
T2
DB3
DB3
DB3
F2
U2
M2
NOISE AND SPUR REG
DB2
DB2
DB2
DB2
F1
T1
M1
U1
N-DIVIDER REG
R-DIVIDER REG
CONTROL REG
C2 (0) C1 (0)
C2 (1) C1 (1)
C2 (1) C1 (0)
C2 (0) C1 (1)
ADF4154
DB1
CONTROL
DB1
DB1
DB1
CONTROL
CONTROL
CONTROL
BITS
BITS
BITS
BITS
DB0
DB0
DB0
DB0