
REV. 0
AD9873
–11–
Table I. Register Map
Address
(Hex)
Default
(Hex)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
00
SDIO
Bidirectional
LSB/MSB
First
RESET
OSC IN
Multiplier
M <4>
OSC IN
Multiplier
M <3>
OSC IN
Multiplier
M <2>
OSC IN
Multiplier
M <1>
OSC IN
Multiplier
M <0>
10
rw
01
PLL
Lock
Detect
OSC IN
Divider
N = 3 (4)
MCLK
Divider
R <5>
MCLK
Divider
R <4>
MCLK
Divider
R <3>
MCLK
Divider
R <2>
MCLK
Divider
R <1>
MCLK
Divider
R <0>
09
rw
02
Power-Down
PLL
Power-Down
DAC Tx
Power-Down
Digital Tx
Power-Down Power-Down
12-Bit ADC
Power-Down
10-Bit ADC
Power-Down
Reference
10-Bit ADC
Power-Down
8-Bit ADC
00
rw
Reference
12-Bit ADC
03
Sigma-Delta Output 0 Control Word <3:0> LSB
0
0
0
0
00
rw
04
Sigma-Delta Output 0 Control Word <11:4> MSB
00
rw
05
Sigma-Delta Output 1 Control Word <3:0> LSB
0
0
0
0
00
rw
06
Sigma-Delta Output 1 Control Word <11:4> MSB
00
rw
07
Video Input
Enable
Clamp Level Control for Video Input <6:0>
20
rw ADC
08
ADC Clock
Select
0
ADC Clock
Select
0
0
0
Test
12-Bit ADC
Test
10-Bit ADC
00
rw ADC
09
0
0
0
0
0
0
0
0
00
rw
0A
0
0
0
0
0
0
0
0
00
rw
0B
0
0
0
0
0
0
0
0
00
rw
0C
0
0
0
0
Version <3:0>
0X
r
0D
0
0
0
0
0
0
0
0
00
r
0E
0
0
0
0
0
0
0
0
00
r
0F
0
0
Profile
Select <1>
Profile
Select <0>
0
Bypass
Inv. Sinc
Tx Filter
Spectral
Inversion Tx
Single-Tone
Tx Mode
00
rw Tx
10
Tx Frequency Turning Word Profile 0 <7:0>
00
rw Tx
11
Tx Frequency Turning Word Profile 0 <15:8>
00
rw Tx
12
Tx Frequency Turning Word Profile 0 <23:16>
00
rw Tx
13
Cable Driver Amplifier Gain Control Profile 0 <7:0>
00
rw Tx
14
Tx Frequency Turning Word Profile 1 <7:0>
00
rw Tx
15
Tx Frequency Turning Word Profile 1 <15:8>
00
rw Tx
16
Tx Frequency Turning Word Profile 1 <23:16>
00
rw Tx
17
Cable Driver Amplifier Gain Control Profile 1 <7:0>
00
rw Tx
18
Tx Frequency Turning Word Profile 2 <7:0>
00
rw Tx
19
Tx Frequency Turning Word Profile 2 <15:8>
00
rw Tx
1A
Tx Frequency Turning Word Profile 2 <23:16>
00
rw Tx
1B
Cable Driver Amplifier Gain Control Profile 2 <7:0>
00
rw Tx
1C
Tx Frequency Turning Word Profile 3 <7:0>
00
rw Tx
1D
Tx Frequency Turning Word Profile 3 <15:8>
00
rw Tx
1E
Tx Frequency Turning Word Profile 3 <23:16>
00
rw Tx
1F
Cable Driver Amplifier Gain Control Profile 3 <7:0>
00
rw Tx
“0” register bits should
not
be programmed with 1.