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AD5543(RevA) 데이터 시트보기 (PDF) - Analog Devices

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AD5543
(Rev.:RevA)
ADI
Analog Devices ADI
AD5543 Datasheet PDF : 12 Pages
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AD5543/AD5553
SDI
D15 D14 D13 D12 D11 D10 D9
D8
D1
D0
CLK
tCSS
CS
tDS
t
DH
tCH
tCL
Figure 3a. AD5543 Timing Diagram
SDI
D13 D12 D11 D10 D9
D8 D7
D6
tCSH
D1
D0
CLK
tCSS
CS
tDS
t
DH
tCH
tCL
tCSH
Figure 3b. AD5553 Timing Diagram
CLK
CS
Table I. Control-Logic Truth Table
Serial Shift Register Function
X
H
+
L
X
H
X
+
No Effect
Shift Register Data Advanced One Bit
No Effect
Shift Register Data Transferred to DAC Register
+ positive logic transition; X Don't Care
DAC Register
Latched
Latched
Latched
New Data Loaded from Serial Register
Bit Position
Data-Word
Table II. AD5543 Serial Input Register Data Format; Data is Loaded in the MSB-First Format
MSB
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2
LSB
B1 B0
D1 D0
Table III. AD5553 Serial Input Register Data Format; Data is Loaded in the MSB-First Format
MSB
LSB
Bit Position B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
Data-Word* D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
*A full 16-bit data-word can be loaded into the AD5553 serial input register, but only the last 14 bits entered will be transferred to the DAC register when CS returns
to logic high.
–6–
REV. A

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