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X9315WSI-2.7T2 PDF预览

X9315WSI-2.7T2

更新时间： 2024-01-14 12:26:09
品牌 Logo 应用领域
XICOR 光电二极管
页数 文件大小 规格书
13页 368K
描述
Digital Potentiometer, 1 Func, 10000ohm, Increment/decrement Control Interface, 32 Positions, CMOS, PDSO8, PLASTIC, SOIC-8

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X9315WSI-2.7T2 数据手册

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APPLICATION NOTE  
A V A I L A B L E  
AN20 • AN42–53 • AN71 • AN73 • AN88 • AN91–92 • AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135  
Low Noise, Low Power, 32 Taps  
X9315  
Digitally Controlled Potentiometer (XDCP™)  
FEATURES  
DESCRIPTION  
• Solid-state potentiometer  
• 3-wire serial interface  
• 32 wiper tap points  
—Wiper position stored in nonvolatile memory  
and recalled on power-up  
The Xicor X9315 is a digitally controlled potentiometer  
(XDCP). The device consists of a resistor array, wiper  
switches, a control section, and nonvolatile memory.  
The wiper position is controlled by a 3-wire interface.  
The potentiometer is implemented by a resistor array  
composed of 31 resistive elements and a wiper  
switching network. Between each element and at  
either end are tap points accessible to the wiper  
terminal. The position of the wiper element is  
controlled by the CS, U/D, and INC inputs. The  
position of the wiper can be stored in nonvolatile  
memory and then be recalled upon a subsequent  
power-up operation.  
• 31 resistive elements  
—Temperature compensated  
—End to end resistance range 2ꢀ0  
—Terminal voltage, ꢀ to V  
• Low power CMOS  
CC  
—V = 2.7V or 5V  
CC  
—Active current, 5ꢀ/4ꢀꢀµA max.  
—Standby current, 1µA max.  
• High reliability  
—Endurance, 1ꢀꢀ,ꢀꢀꢀ data changes per bit  
—Register data retention, 1ꢀꢀ years  
The device can be used as a three-terminal  
potentiometer or as a two-terminal variable resistor in  
a wide variety of applications including:  
• R  
• Packages  
values = 1ꢀKΩ, 5ꢀKΩ, 1ꢀꢀKΩ  
TOTAL  
– control  
—8-lead SOIC, MSOP and DIP  
– parameter adjustments  
– signal processing  
BLOCK DIAGRAM  
U/D  
INC  
CS  
5-Bit  
R /V  
31  
H
H
Up/Down  
Counter  
V
(Supply Voltage)  
CC  
30  
29  
28  
R /V  
H
H
Up/Down  
(U/D)  
5-Bit  
Nonvolatile  
Memory  
Control  
and  
Increment  
(INC)  
One  
of  
Thirty  
Two  
R
/V  
W
W
Memory  
Transfer  
Gates  
Resistor  
Array  
Device Select  
(CS)  
R /V  
Decoder  
L
L
2
Store and  
Recall  
Control  
Circuitry  
V
(Ground)  
SS  
1
0
V
V
CC  
SS  
General  
R /V  
L
L
R
/V  
W
W
Detailed  
XDCP™ is a trademark of Xicor, Inc.  
REV 1.3.2 1/14/03  
Characteristics subject to change without notice. 1 of 13  
www.xicor.com  
1234567...13

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