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參數資料
| 型號： | X9409 |
| 元件分類： | 數字電位計 |
| 英文描述： | Quad Digitally Controlled Potentiometers |
| 中文描述： | 四重數控電位器 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 407K |
| 代理商： | X9409 |
REV 1.6 1/30/03
Characteristics subject to change without notice.
1 of 21
www.xicor.com
Low Noise/Low Power/2-Wire Bus
X9409
Preliminary Information
Quad Digitally Controlled Potentiometers (XDCP
)
FEATURES
Four potentiometers per package
64 resistor taps
2-wire serial interface for write, read, and trans-
fer operations of the potentiometer
50
Wiper resistance, typical at 5V.
Four non-volatile data registers for each
potentiometer
Non-volatile storage of multiple wiper position
Power on recall. Loads saved wiper position on
power up.
Standby current < 1μA typical
System V
CC
: 2.7V to 5.5V operation
10K
, 2.5K
End to end resistance
100 yr. data retention
Endurance: 100,000 data changes per bit per
register
Low power CMOS
24-lead SOIC, 24-lead TSSOP, and
24-lead CSP (Chip Scale Package) Packages
DESCRIPTION
The
potentiometers (XDCP) on a monolithic CMOS
integrated microcircuit.
X9409
integrates
4
digitally
controlled
The digitally controlled potentiometer is implemented
using 63 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 through 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
HO
Data
8
V
W0
/
R
WO
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
V
L0
/
R
LO
Pot 0
V
CC
V
SS
A
PPLICATION
N
OTES
A V A I L A B L E
AN99 AN115 AN120 AN124 AN133 AN134 AN135
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| X9409WB241-2.7 | Quad Digitally Controlled Potentiometers |
| X9409WB241I | Quad Digitally Controlled Potentiometers |
| X9409WB241I-2.7 | Quad Digitally Controlled Potentiometers |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| X9409_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad Digitally Controlled Potentiometers |
| X9409WB241 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digitally Controlled Potentiometers |
| X9409WB241-2.7 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digitally Controlled Potentiometers |
| X9409WB241I | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digitally Controlled Potentiometers |
| X9409WB241I-2.7 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Quad Digitally Controlled Potentiometers |
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