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參數(shù)資料
型號: X9258TZ24-2.7
元件分類: 數(shù)字電位計
英文描述: DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC
中文描述: 數(shù)字電位器|的CMOS | BGA封裝| 24針|塑料
文件頁數(shù): 1/22頁
文件大小: 413K
代理商: X9258TZ24-2.7
REV 1.1.7 2/4/03
Characteristics subject to change without notice.
1 of 22
www.xicor.com
Low Noise/Low Power/2-Wire Bus/256 Taps
X9258
Quad Digital Controlled Potentiometers (XDCP
)
FEATURES
Four potentiometers in one package
256 resistor taps/pot–0.4% resolution
2-wire serial interface
Wiper resistance, 40
Four nonvolatile data registers for each pot
Nonvolatile storage of wiper position
Standby current < 5μA max (total package)
Power supplies
—V
CC
= 2.7V to 5.5V
—V+ = 2.7V to 5.5V
—V- = -2.7V to -5.5V
100K
, 50K
total pot resistance
High reliability
—Endurance – 100,000 data changes per bit per
register
—Register data retention – 100 years
24-lead SOIC, 24-lead TSSOP, 24-lead CSP (Chip
Scale Package)
Dual supply version of X9259
typical @ V+ = 5V, V- = -5V
DESCRIPTION
The
potentiometers (XDCP) on a monolithic CMOS
integrated circuit.
X9258
integrates
4
digitally
controlled
The digitally controlled potentiometer is implemented
using 255 resistive elements in a series array.
Between each element are tap points connected to the
wiper terminal through switches. The position of the
wiper on the array is controlled by the user through the
2-wire bus interface. Each potentiometer has
associated with it a volatile Wiper Counter Register
(WCR) and 4 nonvolatile Data Registers (DR0:DR3)
that can be directly written to and read by the user.
The contents of the WCR controls the position of the
wiper on the resistor array though the switches. Power
up recalls the contents of DR0 to the WCR.
The XDCP can be used as a three-terminal
potentiometer or as a two-terminal variable resistor in
a wide variety of applications including control,
parameter adjustments, and signal processing.
BLOCK DIAGRAM
Interface
and
Control
Circuitry
SCL
SDA
A0
A1
A2
A3
R
0
R
1
R
2
R
3
Wiper
Counter
Register
(WCR)
Resistor
Array
Pot 1
V
H1
/R
H1
V
L1
/R
L1
R
0
R
1
R
2
R
3
Wiper
Counter
Register
(WCR)
V
H0
/R
H0
V
L0
/R
L0
Data
8
V
W0
/R
W0
V
W1
/R
W1
R
0
R
1
R
2
R
3
Resistor
Array
Pot 2
V
H2
/R
H2
V
L2
/R
L2
V
W2
/R
W2
R
0
R
1
R
2
R
3
Resistor
Array
Pot 3
V
H3
/R
H3
V
L3
/R
L3
V
W3
/R
W3
Wiper
Counter
Register
(WCR)
Wiper
Counter
Register
(WCR)
WP
Pot 0
V
CC
V
SS
V+
V-
A
PPLICATION
N
OTES
A V A I L A B L E
AN99 AN115 AN120 AN124 AN133 AN134 AN135
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相關代理商/技術參數(shù)
參數(shù)描述
X9258TZ24I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC
X9258TZ24I-2.7 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC
X9258UB24 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP)
X9258UB24-2.7 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP)
X9258UB24I 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digital Controlled Potentiometers (XDCP)
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