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ADN2850BRUZ25 Datasheet(PDF) 22 Page - Analog Devices

Part No. ADN2850BRUZ25
Description  Nonvolatile Memory, Dual 1024-Position Digital Resistor
Download  30 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADN2850BRUZ25 Datasheet(HTML) 22 Page - Analog Devices

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ADN2850
Data Sheet
Rev. F | Page 22 of 30
Table 17. Using Left-Shift by One to Increment 6 dB Steps
SDI
SDO
Action
0xC0XXXX
0xXXXXXX
Moves Wiper 1 to double the
present data contained in the
RDAC1 register.
0xC1XXXX
0xC0XXXX
Moves Wiper 2 to double the
present data contained in the
RDAC2 register.
Table 18. Storing Additional User Data in EEMEM
SDI
SDO
Action
0x32AAAA
0xXXXXXX
Stores Data 0xAAAA in the extra
EEMEM location USER1. (Allowable to
address in 13 locations with a
maximum of 16 bits of data.)
0x335555
0x32AAAA
Stores Data 0x5555 in the extra
EEMEM location USER2. (Allowable to
address in 13 locations with a
maximum of 16 bits of data.)
Table 19. Reading Back Data from Memory Locations
SDI
SDO
Action
0x92XXXX
0xXXXXXX
Prepares data read from USER1
EEMEM location.
0x00XXXX
0x92AAAA
NOP Instruction 0 sends a 24-bit word
out of SDO, where the last 16 bits
contain the contents in USER1 EEMEM
location.
Table 20. Reading Back Wiper Settings
SDI
SDO
Action
0xB00200
0xXXXXXX
Writes RDAC1 to midscale.
0xC0XXXX
0xB00200
Doubles RDAC1 from midscale to full
scale.
0xA0XXXX
0xC0XXXX
Prepares reading wiper setting from
RDAC1 register.
0xXXXXXX
0xA003FF
Reads back full-scale value from SDO.
EVAL-ADN2850SDZ EVALUATION KIT
Analog Devices, Inc., offers a user-friendly EVAL-ADN2850SDZ
evaluation kit that can be controlled by a PC in conjunction
with the DSP platform. The driving program is self-contained;
no programming languages or skills are needed.


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