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X9258TB24 Datasheet

  • X9258TB24

  • Quad Digital Controlled Potentiometers (XDCP)

  • 413.21KB

  • 22頁

  • XICOR   XICOR

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A
PPLICATION
N
OTES
A V A I L A B L E
AN99 鈥?AN115 鈥?AN120 鈥?AN124 鈥?AN133 鈥?AN134 鈥?AN135
Low Noise/Low Power/2-Wire Bus/256 Taps
X9258
Quad Digital Controlled Potentiometers (XDCP
鈩?/div>
)
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Four potentiometers in one package
256 resistor taps/pot鈥?.4% resolution
2-wire serial interface
Wiper resistance, 40
鈩?/div>
typical @ V+ = 5V, V- = -5V
Four nonvolatile data registers for each pot
Nonvolatile storage of wiper position
Standby current < 5碌A(chǔ) max (total package)
Power supplies
鈥擵
CC
= 2.7V to 5.5V
鈥擵+ = 2.7V to 5.5V
鈥擵- = -2.7V to -5.5V
100K
鈩?/div>
, 50K
鈩?/div>
total pot resistance
High reliability
鈥擡ndurance 鈥?100,000 data changes per bit per
register
鈥擱egister data retention 鈥?100 years
24-lead SOIC, 24-lead TSSOP, 24-lead CSP (Chip
Scale Package)
Dual supply version of X9259
DESCRIPTION
The X9258 integrates 4 digitally controlled
potentiometers (XDCP) on a monolithic CMOS
integrated circuit.
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.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
BLOCK DIAGRAM
V
CC
V
SS
V+
V-
WP
SCL
SDA
A0
A1
A2
A3
R
2
R
3
Pot 0
R
0
R
1
Wiper
Counter
Register
(WCR)
V
H0
/R
H0
R
0
R
1
Wiper
Counter
Register
(WCR)
Resistor
Array
Pot 2
V
H2
/R
H2
V
L0
/R
L0
V
W0
/R
W0
R
2
R
3
V
L2
/R
L2
V
W2
/R
W2
Interface
and
Control
Circuitry
8
Data
R
0
R
1
Wiper
Counter
Register
(WCR)
Resistor
Array
Pot 1
V
W1
/R
W1
V
H1
/R
H1
R
0
R
1
Wiper
Counter
Register
(WCR)
V
W3
/R
W3
Resistor
Array
Pot 3
V
H3
/R
H3
R
2
R
3
V
L1
/R
L1
R
2
R
3
V
L3
/R
L3
REV 1.1.7 2/4/03
www.xicor.com
Characteristics subject to change without notice.
1 of 22

X9258TB24相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Low Noise/Low Power/SPI Bus/256 Taps
    INTERSIL
  • 英文版
    Quad Digitally Controlled Potentiometers (XDCP)
    XICOR
  • 英文版
    Low Noise/Low Power/SPI Bus/256 Taps
    INTERSIL [...
  • 英文版
    Quad Digitally Controlled Potentiometers (XDCP)
    XICOR [Xic...
  • 英文版
    Single Supply/Low Power/256-Tap/SPI Bus
    INTERSIL
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometer
    XICOR
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometer
    XICOR [Xic...
  • 英文版
    Single Supply/Low Power/256-Tap/SPI Bus
    INTERSIL [...
  • 英文版
    Low Power + Quad 256-Tap + 2-Wire Bus + Up/Down Interface
    INTERSIL
  • 英文版
    Quad Digitally-Controlled (XDCP) potentiometer
    XICOR
  • 英文版
    Low Power + Quad 256-Tap + 2-Wire Bus + Up/Down Interface
    INTERSIL [...
  • 英文版
    Quad Digitally-Controlled (XDCP) potentiometer
    XICOR [Xic...
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
    XICOR
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL [...
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
    XICOR [Xic...
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometers
    XICOR
  • 英文版
    Single Supply/Low Power/256-Tap/2-Wire bus
    INTERSIL
  • 英文版
    Quad Digitally Controlled Potentiometers
    INTERSIL [...
  • 英文版
    Quad Digitally-Controlled (XDCP⑩) Potentiometer
    INTERSIL [...

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