Datasheet

ADF4159 Data Sheet
Rev. D | Page 14 of 36
RESERVED
DB31
20-BIT STEP WORD
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 0 SSE1 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 C3(1) C2(1) C1(0)
STEP REGISTER (R6)
DB31
12-BIT DELAY START WORD
RAMP DELAY FL
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 0 0 0TD1 ST1 TR1 FR1 RD1 DC1 DSE1 DS12 DS11 DS10 DS9 DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 C3(1) C2(1) C1(1)
DELAY REGISTER (R7)
RESERVED
DEL START EN
DEL CLK SEL
RAMP DELAY
FAST RAMP
TX
DATA
TRIGGER
TX
DATA
TRIGGER DELAY
SING FULL TRI
TRI DELAY
Σ-Δ
MODULATOR MODE
RESERVED
RESERVED
DB31
12-BIT CLK
2
DIVIDER VALUE
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
LS1 S5 S4 S3 S2 S1 R5 R4 R3 R2 R1 C2 C1 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 C3(1) C2(0) C1(0)
CLOCK REGISTER (R4)
CLK
DIV
MODE
CS1
0
0 0
DB31
16-BIT DEVIATION WORD
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 0TR1 I2 I1 DS1 DO4 DO3 DO2 DO1 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 C3(1) C2(0) C1(1)
DEVIATION REGISTER (R5)
D4
D3
D2 D1
4-BIT DEVIATION
OFFSET WORD
DEV SELSTEP SEL
INTERRUPT
TX RAMP CLK
TX
DATA
INVERT
PARABOLIC
RAMP
DUAL RAMP
FSK RAMP
LE SEL
CLK DIV SEL
CONTROL
BITS
CONTROL
BITS
CONTROL
BITS
CONTROL
BITS
CONTROL
BITS
NOTES
1. DBB = DOUBLE-BUFFERED BITS.
10849-019
RAMP
STATUS
Figure 24. Register Summary 2