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AD5044 Datasheet(PDF) 22 Page - Analog Devices

Part # AD5044
Description  Fully Accurate, 12-/14-/16-Bit VOUT nanoDAC, Quad, SPI Interface, 4.5 V to 5.5 V in TSSOP
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5044 Datasheet(HTML) 22 Page - Analog Devices

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AD5024/AD5044/AD5064
Rev. 0 | Page 22 of 28
Table 11. Clear Code Register
Clear Code Register
DB1
DB0
CR1
CR0
Clears to Code
0
0
0x0000
0
1
0x8000
1
0
0xFFFF
1
1
No operation
Table 12. 32-Bit Input Shift Register Contents for Clear Code Function
MSB
LSB
DB31 to DB28
DB27
DB26
DB25
DB24
DB23
DB22
DB21
DB20
DB2 to DB19
DB1
DB0
X
0
1
0
1
X
X
X
X
X
1/0
1/0
Don’t cares
Command bits (C3 to C0)
Address bits (A3 to A0)
Don’t cares
Clear code register
(CR1 to CR0)
Table 13. LDAC Overwrite Definition
Load DAC Register
LDAC Bits (DB3 to DB0)
LDAC Pin
LDAC Operation
0
1 or 0
Determined by the LDAC pin
1
X—don’t care
DAC channels update, overrides the LDAC pin. DAC channels see LDAC as 0.
Table 14. 32-Bit Input Shift Register Contents for LDAC Overwrite Function
MSB
LSB
DB31 to
DB28
DB27
DB26
DB25
DB24
DB23
DB22
DB21
DB20
DB4 to
DB19
DB3
DB2
DB1
DB0
X
0
1
1
0
X
X
X
X
X
DAC D
DAC C
DAC B
DAC A
Don’t
cares
Command bits (C3 to C0)
Address bits (A3 to A0)—
don’t cares
Don’t
cares
Setting LDAC bits to 1 overrides LDAC pin



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