Datasheet

Data Sheet ADF4159
Rev. D | Page 13 of 36
REGISTER MAPS
DB31
CONTROL
BITS
12-BIT MSB FRACTIONAL VALUE
(FRAC)
13-BIT LSB FRACTIONAL VALUE
(FRAC)
12-BIT INTEGER VALUE (INT)
MUXOUT
CONTROL
DB30 D DB29 B28 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
R1 M4 M3 M2 M1 N12 N11 N10 N9 N8 N7 N6 N5 N4 N3 N2 N1 F25 F24 F23 F22 F21 F20 F19 F18 F17 F16 F15 F14 C3(0) C2(0) C1(0)
RAMP ON
FRAC/INT REGISTER (R0)
DB31
12-BIT PHASE VALUE
RESERVED
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 P1 F13 F12 F11 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 C3(0) C2(0) C1(1)
LSB FRAC REGISTER (R1)
DB31
RESERVED NEG BLEED
CURRENT
POWER-DOWN
PD
POLARITY
LDP
PSK
COUNTER
RESET
CP
THREE-STATE
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 0 0 0 NB3 NB2 NB1 0 0 0 0 1 L1 NS1 U12 0 0 0 0RM2 RM1 U11 U10 U9 U8 U7 C3(0) C2(1) C1(1)
FUNCTION REGISTER (R3)
DB31
5-BIT R COUNTERRESERVED
RESERVED
PHASE
ADJUST
PRESCALER
CSR
RDIV2 DBB
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 CR1 CPI4 CPI3 CPI2 CPI1 0 P1 U2 U1 R5 R4 R3 R2 R1 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 C3(0) C2(1) C1(0)
R DIVIDER REGISTER (R2)
DBB DBB
DBB
DBB DBB
SD
RESET
RAMP MODE
RESERVED
RESERVED
RESERVED
NEG BLEED
ENABLE
FSK
N SEL
LOL
NOTES
1. DBB = DOUBLE-BUFFERED BITS.
CONTROL
BITS
CONTROL
BITS
CONTROL
BITS
12-BIT CLK
1
DIVIDER VALUE
CP
CURRENT
SETTING
REFERENCE
DOUBLER DBB
10849-018
Figure 23. Register Summary 1