參數(shù)資料
型號: AD5544
廠商: Analog Devices, Inc.
英文描述: Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs
中文描述: 四,電流輸出串行輸入,16-Bit/14-Bit數(shù)模轉(zhuǎn)換器
文件頁數(shù): 6/16頁
文件大小: 473K
代理商: AD5544
REV. 0
AD5544/AD5554
–6–
t
LDH
t
LDS
t
LDAC
t
CSH
t
PD
t
CL
t
CH
t
DH
t
DS
t
CSS
SDI
CLK
CS
LDAC
SDO
INPUT
REG
LD
A1
A0
D15
D14
D13
D12
D11
D10
D1
D0
Figure 2. AD5544 Timing Diagram
t
LDH
t
LDS
t
LDAC
t
CSH
t
PD
t
CL
t
CH
t
DH
t
DS
t
CSS
SDI
CLK
CS
LDAC
SDO
INPUT
REG
LD
A1
A0
D13
D12
D11
D10
D09
D08
D1
D0
Figure 3. AD5554 Timing Diagram
Table I. AD5544 Control-Logic Truth Table
CS
CLK
LDAC
RS
MSB
Serial Shift Register Function
Input Register Function
DAC Register
H
L
L
L
+
X
L
+
H
L
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
No Effect
No Effect
Shift-Register-Data Advanced One Bit
No Effect
No Effect
Latched
Latched
Latched
Latched
Selected DAC Updated
with Current SR Contents
Latched
Latched
Latched
Latched Data = 0000
H
Latched Data = 8000
H
Latched
Latched
Latched
Latched
Latched
H
H
H
H
H
X
X
X
X
X
L
H
+
H
H
H
H
H
L
L
X
X
X
0
H
No Effect
No Effect
No Effect
No Effect
No Effect
Transparent
Latched
Latched
Latched Data = 0000
H
Latched Data = 8000
H
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