
REV. 0
–12–
AD9860/AD9862
REGISTER MAP (0x00–0x3F)
1
Register Name
Address
2
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
General
Rx Power Down
Rx A
Rx B
Rx Misc
Rx I/F
0
1
2
3
4
5
SDIO BiDir
V
REF
(diff)
Byp Buffer A
Byp Buffer B
LSB First
V
REF
Soft Reset
Rx Digital
Rx Channel B
Rx Channel A Buffer B
Buffer A
All Rx
RxPGA A
RxPGA B
HS Duty Cycle
Shared Ref
Rx Retime
Twos
Complement
2 Channel
Keep
–
ve
Clk Duty
Mux Out
Three State
Inv RxSync
Rx Digital
RSV
Tx Power Down
6
7
8
Hilbert
Decimate
Reserved for Future Use
Alt Timing
Mode
Reserved for Future Use
TxOff Enable
Tx Digital
Tx Analog Power Down [2:0]
RSV
Tx A Offset
9
10
DAC A Offset [1:0]
DAC A Offset
Direction
Tx A Offset
Tx B Offset
11
12
DAC A Offset [9:2]
DAC B Offset [1:0]
DAC B Offset
Direction
Tx B Offset
Tx A Gain
Tx B Gain
Tx PGA Gain
Tx Misc
Tx I/F
13
14
15
16
17
18
DAC B Offset [9:2]
DAC A Coarse Gain
DAC B Coarse Gain
DAC A Fine Gain
DAC B Fine Gain
Tx PGA Gain
Slave Enable Tx PGA Fast
2 Edges
Tx Retime
Q/I Order
Inv TxSync
Twos
Complement
Keep
–
ve
Real Mix
Inverse
Sample
Hilbert
Neg. Coarse Tune
Coarse Modulation
Interleaved
Tx Digital
Tx Modulator
NCO Tuning
Word
NCO Tuning
Word
NCO Tuning
Word
DLL
19
20
2 Data Paths
Interpolation Control
Neg. Fine Tune
Fine Mode
21
FTW [7:0]
22
FTW [15:8]
23
FTW [23:16]
24
Reserved
Input Control ADC Div 2
Clock
DLL Multiplier
DLL
Power Down
DLL
FAST
Dis1
CLKOUT
Aux ADC A2
Aux ADC A2
Aux ADC A1
Aux ADC A1
Aux ADC B2
Aux ADC B2
Aux ADC B1
Aux ADC B1
Aux ADC Control
Aux ADC Clock
Aux DAC A
Aux DAC B
Aux DAC C
Aux DAC
Update Aux DAC 40
DAC Control
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
CLKOUT2 Divide Factor
Aux ADC A2 Data [1:0]
Inv2
Dis2
Inv1
Aux ADC A2 Data [9:2]
Aux ADC A1 Data [1:0]
Aux ADC A1 Data [9:2]
Aux ADC B2 Data [1:0]
Aux ADC B2 Data [9:2]
Aux ADC B1 Data [1:0]
Aux ADC B1 Data [9:2]
Select B
Aux SPI
SelBnot A
Refsel B
Start B
Refsel A
Select A
Start A
CLK/4
Aux DAC A
Aux DAC B
Aux DAC C
Slave Enable
Update C
Power Down C Power Down B Power Down A
Inv B
Update B
Update A
41
Inv C
Inv A
SigDelt
42
Sigma-Delta Control Word [3:0]
Flag
SigDelt
43
Sigma-Delta Control Word [11:4]
ADC Low Power
49, 50
Low Power Register for Rx Path Operation below 32 MSPS
RSV
44
–
62
Reserved for Future Use
63
Chip Rev ID
NOTES
1
When writing to a register with unassigned register bit(s), a logic low must be written to the unassigned bit(s). By default, after power up or RESET, all registers
are set low, except for the bits in the shaded boxes, which are set high.
2
Decimal
Purpose
SPI Setup
Receive
Path
Setup
Transmit
Path
Setup
NCO
Setup
Clock
Setup
Auxiliary
ADC Data
and Setup
Auxiliary
DAC Data
and Setup
Sigma-
Delta Data
and Setup
Rx Low
Power
Reserved
Chip ID