參數(shù)資料
型號(hào)： AD9641-80KITZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 24/36頁(yè)
文件大?。?/td> 0K
描述： BOARD EVAL FOR AD9641
設(shè)計(jì)資源： AD9641 Gerber Files
AD9641 80KITZ BOM
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 1
位數(shù)： 14
采樣率（每秒）： 80M
數(shù)據(jù)接口： 串行，SPI?
輸入范圍： 1.4 ~ 2.1 Vpp
工作溫度： -40°C ~ 85°C
已用 IC / 零件： AD9641
已供物品： 板
AD9641
Data Sheet
Rev. B | Page 30 of 36
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)
Default
Notes/
Comments
ADC Functions
0x08
Power
modes
Open
External
power-
down pin
function
0 = PDWN
1 = STNDBY
Open
Internal power-down mode
00 = normal operation
01 = full power-down
10 = standby
11 = reserved
0x00
Determines
various
generic
modes of
chip
operation.
0x09
Global clock
Open
Duty cycle
stabilizer
(default)
0x01
0x0A
PLL status
PLL locked
Open
0x00
Read only.
0x0B
Clock divide
Open
Input clock divider phase adjust
000 = no delay
001 = 1 input clock cycle
010 = 2 input clock cycles
011 = 3 input clock cycles
100 = 4 input clock cycles
101 = 5 input clock cycles
110 = 6 input clock cycles
111 = 7 input clock cycles
Clock divide ratio
000 = divide-by-1
001 = divide-by-2
010 = divide-by-3
011 = divide-by-4
100 = divide-by-5
101 = divide-by-6
110 = divide-by-7
111 = divide-by-8
0x00
Clock divide
values other
than 000
cause the
duty cycle
stabilizer to
become
active.
0x0D
Test mode
User test
mode
control
0 =
continuous/
repeat
pattern
1 = single
pattern
Open
Reset PN
long gen
Reset PN
short gen
Output test mode
0000 = off (default)
0001 = midscale short
0010 = positive FS
0011 = negative FS
0100 = alternating checkerboard
0101 = PN long sequence
0110 = PN short sequence
0111 = one-/zero- word toggle
1000 = user test mode
1001 to 1110 = unused
1111 = ramp output
0x00
When this
register is
set, the
test data is
placed on
the output
pins in place
of normal
data.
0x0E
BIST enable
Open
Reset BIST
sequence
Open
BIST enable
0x00
0x10
Offset adjust
Open
Offset adjust in LSBs from +31 to 32
(twos complement format)
0x00
0x14
Output
mode
Open
Output
disable
Open
Output
invert
Output format
00 = offset binary
01 = twos complement
(default)
01 = Gray code
11 = offset binary
0x01
Configures
the outputs
and the
format of
the data.
0x15
Output
adjust
Open
Output drive level adjust
11 = 320 mV
00 = 400 mV
10 = 440 mV
01 = 500 mV
0x00
0x18
Input span
select
Open
Full scale input voltage selection
01111 = 2.087 V p-p
…
00001 = 1.772 V p-p
00000 = 1.75 V p-p (default)
11111 = 1.727 V p-p
…
10000 = 1.383 V p-p
0x00
Full-scale
input
adjustment
in 0.022 V
steps.
0x19
User Test
Pattern 1 LSB
User Test Pattern 1, Bits[7:0]
0x00
0x1A
User Test
Pattern 1 MSB
User Test Pattern 1, Bits[15:8]
0x00
0x1B
User Test
Pattern 2 LSB
User Test Pattern 2, Bits[7:0]
0x00
0x1C
User Test
Pattern 2 MSB
User Test Pattern 2, Bits[15:8]
0x00
0x1D
User Test
Pattern 3 LSB
User Test Pattern 3, Bits[7:0]
0x00
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