Datasheet

AD9608
Rev. 0 | Page 36 of 40
Addr
(Hex)
Register
Name
Bit 7
(MSB)
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
Bit 0
(LSB)
Default
Value
(Hex) Comments
0x18
VREF
select
(global)
Open Open Open Open Open Internal V
REF
digital adjustment
000 = 1.0 V p-p
001 = 1.14 V p-p
010 = 1.33 V p-p
011 = 1.6 V p-p
100 = 2.0 V p-p
0x04
Select
and/or
adjust V
REF
0x19
User
Pattern 1,
LSB
(global)
B7 B6 B5 B4 B3 B2 B1 B0 0x00
User-
Defined
Pattern 1,
LSB
0x1A
User
Pattern 1,
MSB
(global)
B15 B14 B13 B12 B11 B10 B9 B8 0x00
User-
Defined
Pattern 1,
MSB
0x1B
User
Pattern 2,
LSB
(global)
B7 B6 B5 B4 B3 B2 B1 B0 0x00
User-
Defined
Pattern 2,
LSB
0x1C
User
Pattern 2,
MSB
B15 B14 B13 B12 B11 B10 B9 B8 0x00
User-
Defined
Pattern 2,
MSBs
0x24 MISR LSB MISR LSB, Bits[7:0] 0xFF Read only
0x25 MISR MSB MISR MSB, Bits[15:8] 0xFF Read only
0x2A
Overrange
control
(global)
Open Open Open Open Open Open Open
Overrange
output
0 = disabled
1 = enabled
0x01
Overrange
control
settings
0x2E
Output
assign
(local)
Open Open Open Open Open Open Open
0 = ADC A
1 = ADC B
(local)
0x00 =
ADC A
0x01 =
ADC B
Assign an
ADC to an
output
channel
0x3A
Sync
control
(global)
Open Open Open Open Open
Clock
divider
next sync
only
Clock
divider
sync
enable
Open 0x00
Sets the
global sync
options
0x100
Sample
rate
override
Open
Sample
rate
override
enable
Open Open Open Sample rate
011 = 80 MSPS
100 = 105 MSPS
101 = 125 MSPS
0x00
0x101
User I/O
Control
Register 2
Output
enable
bar
(OEB)
pin
enable
Open Open Open Open Open Open
Disable SDIO
pull-down
0x00
OEB and
SDIO pin
controls
0x102
User I/O
Control
Register 3
Open Open Open Open
VCM
power-down
Open 0x00