AD9683-250EBZ Analog Devices, AD9683-250EBZ Datasheet - Page 37

• Manufacturer Part Number: AD9683-250EBZ
• Description: Data Conversion IC Development Tools
• Manufacturer: Analog Devices
• Type: ADCr
• Series: AD9683r

Specifications of AD9683-250EBZ

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: AD9683-250
• Interface Type: SPI
• Operating Supply Voltage: 1.8 V
• Description/function: Evaluation board with AD9683-250
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Current: 149 mA
• For Use With: AD9683-250

Data Sheet
Reg
Addr
(Hex)
0x40
0x41
0x42
0x45
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x5E
0x5F
0x60
0x61
0x64
Reg Addr
Name
DC correction
control
DC Correction
Value 0
DC Correction
Value 1
Fast detect
control
Fast detect
upper threshold
Fast detect
lower threshold
Fast detect
dwell time
JESD204B quick
config
JESD204B Link
Control 1
JESD204B Link
Control 2
JESD204B Link
CTRL 3
JESD204B DID
config
Bit 7
(MSB)
Reserved;
set to 0
Reserved;
set to 0
Bit 6
Freeze dc
correction:
0 =
calculate,
1 = freeze
value
Serial tail
bit
enable:
0 = extra
bits are 0,
1 = extra
bits are
9-bit PN
Reserved;
set to 0
Reserved;
set to 0
Bit 5
JESD204B quick configuration, always reads back 0x00;
JESD204B
test
sample
enable
Reserved;
set to 0
Test data injection point:
correction bandwidth is 2387.32 Hz/register value;
01 = 10-bit data at
10 = 8-bit data at
scrambler input
8B/10B output,
0x11: M = 1, L = 1; one converter, one lane
DC correction bandwidth select;
Fast detect upper threshold[7:0]
Fast detect lower threshold[7:0]
DC correction value MSB[15:8]
there are 14 possible values;
DC correction value LSB[7:0]
Bit 4
FD pin
function:
0 = fast
detect,
1 =
overrange
Fast detect dwell time[15:8]
Reserved;
set to 1
SYNCINB±
logic type:
0 = LVDS
(differential),
1 = CMOS
(single-
ended)
Fast detect dwell time[7:0]
Rev. 0 | Page 37 of 44
0000 = 2387.32 Hz,
0001 = 1193.66 Hz,
JESD204B DID value
0010 = 596.83 Hz,
0011 = 298.42 Hz,
0100 = 149.21 Hz,
Fast detect upper threshold[14:8]
Fast detect lower threshold[14:8]
0101 = 74.60 Hz,
0110 = 37.30 Hz,
0111 = 18.65 Hz,
1110 = reserved,
1111 = reserved
1000 = 9.33 Hz,
1001 = 4.66 Hz,
1010 = 2.33 Hz,
1011 = 1.17 Hz,
1100 = 0.58 Hz,
1101 = 0.29 Hz,
Force FD
output
enable:
0 =
normal
function,
1 = force
to value
Bit 3
11 = ILAS always on, test
01 = ILAS normal mode
0000 = normal operation (test mode disabled),
0101 = continuous/repeat user test mode,
ILAS mode:
enabled,
mode
0001 = alternating checker board,
JESD204B test mode patterns:
0110 = single user test mode,
Bit 2
Forced FD
output
value;
force FD
pin is true,
this value
is output
on the FD
pin
Reserved;
set to 0
0011 = PN Sequence PN23,
1101 = PN Sequence PN15,
1100 = PN Sequence PN7,
0100 = PN Sequence PN9,
other setting are unused
0010 = 1/0 word toggle,
0111 = reserved,
if
Enable dc
correction
Reserved;
set to 1
Invert
transmit
bits
Bit 1
Bit 0 (LSB)
Enable fast
detect
output
JESD204B
link power-
down; set
high while
configuring
link
parameters
Reserved;
set to 0
0x00
0x00
Default
0x00
0x00
0x00
0x00
0x14
0x00
AD9683
Notes
Always reads
back 0x00