AD9639 Analog Devices, Inc., AD9639 Datasheet - Page 33

• Manufacturer Part Number: AD9639
• Description: Quad, 12-bit, 170 Msps/210 Msps Serial Output 1.8 V Adc
• Manufacturer: Analog Devices, Inc.

Addr.
(Hex)
0x10
0x14
0x15
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
Register
Name
Offset
(local)
output_mode
(local/global)
output_adjust
(global)
V
(global)
user_
patt1_lsb
(local)
user_
patt1_msb
(local)
user_
patt2_lsb
(local)
user_
patt2_msb
(local)
user_
patt3_lsb
(local)
user_
patt3_msb
(local)
user_
patt4_lsb
(local)
user_
patt4_msb
(local)
REF
(MSB)
Bit 7
B7
B15
B7
B15
B7
B15
B7
B15
Bit 6
B6
B14
B6
B14
B6
B14
B6
B14
Bit 5
B5
B13
B5
B13
B5
B13
B5
B13
Bit 4
Output
enable bar
(local)
1 = off
0 = on
(default)
B4
B12
B4
B12
B4
B12
B4
B12
Rev. 0 | Page 33 of 36
6-bit device offset adjustment[5:0]
011111 = +31 LSB
011110 = +30 LSB
011101 = +29 LSB
…
000010 = +2 LSB
000001 = +1 LSB
000000 = 0 LSB
111111 = −1 LSB
111110 = −2 LSB
111101 = −3 LSB
…
100001 = −31 LSB
100000 = −32 LSB
Bit 3
B3
B11
B3
B11
B3
B11
B3
B11
Ref_Vfs[4:0]
Reference full-scale adjust
10000 = 0.98 V p-p
10001 = 1.00 V p-p
10010 = 1.02 V p-p
10011 = 1.04 V p-p
…
11111 = 1.23 V p-p
00000 = 1.25 V p-p
00001 = 1.27 V p-p
…
01110 = 1.48 V p-p
01111 = 1.5 V p-p
Bit 2
Output
invert
enable
(global)
1 = on
0 = off
(default)
B2
B10
B2
B10
B2
B10
B2
B10
Bit 1
Data format select
(global)
00 = offset binary
(default)
01 = twos
complement
10 = gray code
Output driver
current[1:0]
00 = 400 mV
(default)
01 = 500 mV
10 = 440 mV
11 = 320 mV
B1
B9
B1
B9
B1
B9
B1
B9
(LSB)
Bit 0
B0
B8
B0
B8
B0
B8
B0
B8
Default
Value
(Hex)
0x00
0x00
0x00
0x00
0xAA
0xAA
0xAA
0xAA
0xAA
0xAA
0xAA
0xCC
AD9639
Comments
Device
offset trim.
Configures
the outputs
and the
format of
the data.
VCM output
adjustments.
Select
adjustments
for V
User-Defined
Pattern 1
LSB.
User-Defined
Pattern 1
MSB.
User-Defined
Pattern 2
LSB.
User-Defined
Pattern 2
MSB.
User-Defined
Pattern 3
LSB.
User-Defined
Pattern 3
MSB.
User-Defined
Pattern 4
LSB.
User-Defined
Pattern 4
MSB.
REF
.