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X9401YV24I-2.7 PDF预览

X9401YV24I-2.7

更新时间： 2024-09-24 22:10:43
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
20页 369K
描述
Low Noise/Low Power/SPI Bus

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X9401YV24I-2.7 数据手册

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X9401  
®
Low Noise/Low Power/SPI Bus  
Data Sheet  
September 23, 2005  
FN8190.2  
PRELIMINARY  
DESCRIPTION  
Quad, 64 Tap, Digitally Controlled  
Potentiometer (XDCP™)  
The X9401 integrates 4 digitally controlled potentiome-  
ters (XDCP) on a monolithic CMOS integrated  
microcircuit.  
FEATURES  
• Quad–4 separate pots, 64 taps/pot  
• Nonvolatile storage of wiper position  
• Four Nonvolatile Data Registers for Each Pot  
• 16-bytes of EEPROM memory  
The digitally controlled potentiometer is implemented  
using 64 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 SPI bus  
interface. Each potentiometer has associated with it a  
volatile Wiper Counter Register (WCR) and 4 nonvola-  
tile Data Registers (DR0:DR3) that can be directly writ-  
ten 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.  
• SPI serial interface  
• R  
= 10kΩ  
Total  
• Wiper resistance = 150Ω typical  
• Standby current < 1µA (total package)  
• Operating current < 400µA max.  
• V  
= 2.7V to 5V  
CC  
• Packages–24 Ld TSSOP and SOIC  
• 100 year data retention  
• Pb-free plus anneal available (RoHS compliant)  
The XDCP can be used as a three-terminal potentiom-  
eter or as a two-terminal variable resistor in a wide  
variety of applications including control, parameter  
adjustments, and signal processing.  
BLOCK DIAGRAM  
Pot 0  
V
V
CC  
R0 R1  
R2 R3  
V
/R  
H0 H0  
SS  
R0 R1  
R2 R3  
Wiper  
Counter  
Register  
(WCR)  
Wiper  
Counter  
Register  
(WCR)  
V
/R  
H2 H2  
Resistor  
Array  
Pot 2  
V
/R  
L0 L0  
HOLD  
V
/R  
L2 L2  
CS  
SCK  
SO  
SI  
V
/R  
W0 W0  
V
/R  
W2 W2  
Interface  
and  
Control  
8
Circuitry  
A0  
A1  
V
/R  
W1 W1  
Data  
V
V
/R  
W3 W3  
WP  
R0 R1  
R2 R3  
R0 R1  
R2 R3  
V
/R  
Wiper  
Counter  
Register  
(WCR)  
H1 H1  
/R  
Resistor  
Array  
Pot 1  
Wiper  
Counter  
Register  
(WCR)  
H3 H3  
Resistor  
Array  
Pot 3  
V
/R  
L1 L1  
V
/R  
L3 L3  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved  
All other trademarks mentioned are the property of their respective owners.  
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