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X9400YS24

更新时间： 2024-09-23 22:08:59
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英特矽尔 - INTERSIL /
页数 文件大小 规格书
21页 374K
描述
Low Noise/Low Power/SPI Bus

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X9400YS24 数据手册

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X9400  
®
Low Noise/Low Power/SPI Bus  
Data Sheet  
March 31, 2005  
FN8189.1  
DESCRIPTION  
Quad Digitally Controlled Potentiometers  
(XDCP™)  
The X9400 integrates four digitally controlled  
potentiometers (XDCPs) on a monolithic CMOS  
integrated circuit.  
FEATURES  
• Four potentiometers per package  
• 64 resistor taps  
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 SPI  
serial bus interface. Each potentiometer has  
associated with it a volatile Wiper Counter Register  
(WCR) and four nonvolatile Data Registers (DR0-3)  
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.  
• SPI serial interface for write, read, and transfer  
operations of the potentiometer  
• Wiper resistance, 40Ω 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 max  
• System V : 2.7V to 5.5V operation  
CC  
+
–
• Analog V /V : -5V to +5V  
• 10kΩ, 2.5kΩ End to end resistance  
• 100 yr. data retention  
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.  
• Endurance: 100,000 data changes per bit per  
register  
• Low power CMOS  
• 24-lead SOIC and 24-lead TSSOP  
BLOCK DIAGRAM  
V
V
CC  
SS  
Pot 0  
R0 R1  
R2 R3  
V
/R  
H0 H0  
R0 R1  
R2 R3  
V+  
V-  
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
/R  
W3 W3  
WP  
R0 R1  
R2 R3  
R0 R1  
R2 R3  
V
/R  
Wiper  
Counter  
Register  
(WCR)  
H1 H1  
V
/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 1-888-352-6832 | 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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X9400YS24I INTERSIL

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X9400YS24I XICOR

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X9400YS24I-2.7 INTERSIL

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 		Low Noise/Low Power/SPI Bus
X9400YS24I-2.7T1 XICOR

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 		Digital Potentiometer, 4 Func, 2500ohm, 3-wire Serial Control Interface, 64 Positions, CMO
X9400YS24I-2.7T1 RENESAS

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 		QUAD 2.5K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO24, 0.

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