Datasheet

ADF4158 Data Sheet
Rev. E | Page 14 of 36
DB31
CONTRO
L
BITS
20-BIT STEP WORD
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22
DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB
10 DB
9 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 S
11 S
10 S9 S8 S7 S6 S5 S4 S3 S2 S1 C3(0) C2
(0) C1(0)
S
TEP REGISTER (R6)
DB31
CONTROL
BITS
12-BIT DELAY START DIVIDER
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 DB
2 DB1 DB0
0 0 0 0 0 0 0 0 0 0 0 0 0 RDF1 RD1 DC1 DSE1 D
S12 DS11 DS10 DS9 DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1
C3(
0) C2(0) C1(1)
DELAY REGI
STER (R7)
RESERVED
STEP SEL
DEL START EN
DEL CLK SEL
RAMP DEL
RAMP DEL FL
RESERVED
RESERVED
DB
3
1
12-BIT CLOCK DIVIDER VALUE
CONTROL
BITS
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB
8 DB
7
DB6 DB5 DB4 DB3 DB2 DB1 DB0
LS1 0 0 0 0 0 0 NB2 NB1 R2 R1 C2 C1 D12 D11 D10 D9 D8 D7 D6
D
5 D
4 D3 D2 D1 C3(1) C2(0) C1(0)
TEST REGISTER (R4)
CLK
DIV
MO
DE
READ-
BACK
TO
MUXOUT
0
0
0 0
DB31
16-BIT DEVIATION WORD
CONTROL
BITS
DB3
0
DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7
DB
6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 TR1 PR1 I2 I1 FRE1 R2E1 DS1 DO4 DO3 DO2 DO1 D16 D15 D14 D13 D12 D11 D10 D9 D8
D
7 D6 D5 C3(1) C2(0) C1(0)
DEVIATION REGISTER (R5)
D4
D3
D2
D
1
4-BIT DEV OFFSET
WORD
DEV SEL
RAMP 2 EN
FSK RAMP EN
INTERRUPT
PAR RAMP
TX RAMP CLK
RESERVED
LE SEL
08728-110
NEG
BLEED
CURR-
ENT
Figure 22. Register Summary 2