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AD9467 датащи(PDF) 31 Page - Analog Devices

номер детали AD9467
подробное описание детали  Analog-to-Digital Converter
PDF  34 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD9467 датащи(HTML) 31 Page - Analog Devices

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Data Sheet
AD9467
Rev. D | Page 29 of 32
Addr.
(Hex)
Parameter Name
(MSB)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
(LSB)
Bit 0
Default
Value
(Hex)
Default Notes/
Comments
ADC Functions
08
modes
X
X
X
X
X
X
Internal power-
down mode
00 = chip run
(default)
01 = full power-
down
0x00
Determines
various generic
modes of chip
operation.
0D
test_io
X
X
Reset PN
long
gen
1 = on
0 = off
(default)
Reset PN
short gen
1 = on
0 = off
(default)
Output test mode—see Table 10 in the
Digital Outputs and Timing section
0000 = off (default)
0001 = midscale short
0010 = +FS short
0011 = −FS short
0100 = checkerboard output
0101 = PN 23 sequence
0110 = PN 9 sequence
0111 = one-/zero-word toggle
0x00
When this
register is set,
the test data is
placed on the
output pins in
place of normal
data.
0F
adc_input
XVREF
1 = on
0 = off
(default)
X
X
X
X
Analog
disconnect
1 = on
0 = off
(default)
X
X
0x00
Analog input
functions.
10
offset
8-bit digital offset adjustment
0111 1111 = 127
0111 1110 = 126
…
0000 0010 = 2
0000 0001 = 1
0000 0000 = 0
1111 1111 = -1
1111 1110 = -2
…
1000 0001 = -126
1000 0000 = -127
0x00
Bipolar, twos
complement
digital offset
adjustment in
LSBs.
14
output_mode
X
0
X
Digital
output
disable
1 = on
0 = off
(default)
1
Output
invert
1 = on
0 = off
(default)
Data format
select
00 = offset
binary (default)
01 = twos
complement
10 = Gray code
0x08
Configures the
outputs and
the format of
the data.
15
output_adjust
X
X
X
X
Coarse
LVDS
adjust
0 =
3.0 mA
(default)
1 =
1.71 mA
Output current drive adjust
001 = 3.0 mA (default)
010 = 2.79 mA
011 = 2.57 mA
100 = 2.35 mA
101 = 2.14 mA
110 = 1.93 mA
111 = 1.71 mA
0x00
Determines
LVDS or other
output
properties.
16
output_phase
DCO
output
invert
1 = on
0 = off
(default)
X
X
X
X
X
X
X
0x00
Determines
digital clock
output phase.
18
vref
X
X
X
X
Input full-scale range adjust
0000 = 2.0 V p-p
0110 = 2.1 V p-p
0111 = 2.2 V p-p
1000 = 2.3 V p-p
1001 = 2.4 V p-p
1010 = 2.5 V p-p (default)
0x0A



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