参数资料
型号: AD5263BRU50-REEL7
厂商: ANALOG DEVICES INC
元件分类: 数字电位计
英文描述: Preliminary Technical Data
中文描述: QUAD 50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24
封装: MO-153AD, TSSOP-24
文件页数: 5/6页
文件大小: 84K
代理商: AD5263BRU50-REEL7
PRELIMINARY TECHNICAL DATA
Quad +15V Digital Potentiometers
SPI Compatible Digital Interface (DIS=’0’)
TABLE IA: SPI 10-Bit Serial-Data Word
Format
ADDR
DATA
B9
B8
B7
B6
B5
B4
B3
B2
B1
A1
A0
D7
D6
D5
D4
D3
D2
D1
MSB
2
9
2
7
A
1
AD5263
08 AUG ’02, REV PrD
- 5 -
B0
D0
LSB
2
0
A
0
D
7
D
6
D
5
D
4
D
3
D
1
D0
S
D
I
C
L
K
CS
V
O
U
T
0
1
1
0
1
0
1
0
D
2
RDAC REGISTER LOAD
Figure 1A. SPI Timing Diagram
1
0
1
0
1
0
V
DD
0V
(Data In)
CLK
CS
V
OUT
±1 LSB ERROR BAND
±1 LSB
t
S
t
CSH1
t
CSS
t
CL
t
CH
t
DS
t
DH
Ax or Dx
t
CSH0
t
CSW
t
CS1
Ax or Dx
t
PD_MAX
1
0
(Data Out)
A'x or D'x
A'x or D'x
Figure 1B. Detail SPI Timing Diagram
I
2
C Compatible Digital Interface (DIS=’1’)
TABLE IIA: I
2
C Write Mode Data Word Format
S
0
1
0
1
1
A
D
1
A
D
0
W
A
X
A
1
A
0
R
S
S
D
O
1
O
2
X
A
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
A
P
TABLE IIB: I
2
C Read Mode Data Word Format:
Slave Address Byte
Instruction Byte
Data Byte
S
0
1
0
1
1
0
A
D
0
R
A
D
7
D
8
D
5
D
4
D
3
D
2
D
1
D
0
A
P
S
= Start Condition
P
= Stop Condition
A
= Acknowledge
AD1, AD0
= Package pin programmable address bits, Must match
with the logic states at pins AD1, AD0
A1, A0
= RDAC sub address select
RS
= Software Reset wiper (A1, A0) to mid scale position
Slave Address Byte
Data Byte
SD
= Shutdown active high, ties wiper (A1, A0) to terminal A,
opens terminal B, RDAC register contents are not disturbed. To exit
shutdown a command SD = ‘0’ must be executed for each RDAC
(A1, A0).
W
= Write = ‘0’
R
= Read = ‘1’
D7,D6,D5,D4,D3,D2,D1,D0
= Data Bits
X
= Don’t Care
t
4
SDA
SCL
P
S
Sr
P
t
1
t
2
t
3
t
5
t
6
t
7
t
8
t
8
t
9
t
10
Figure 2. I
2
C Compatible Detail Timing Diagram
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