鈥?Power-on Recall. Loads Saved Wiper Position
on Power-up.
鈥?/div>
50k鈩? 100k鈩?versions of End to End Resistance
鈥?100 yr. Data Retention
鈥?Endurance: 100,000 Data Changes per Bit per
Register
鈥?24-Lead SOIC, 24-Lead XBGA
鈥?Low Power CMOS
鈥?Power Supply V
CC
= 2.7V to 5.5V
V+ = 2.7V to 5.5V
V- = -2.7V to -5.5V
FUNCTIONAL DIAGRAM
V
CC
V
+
DESCRIPTION
The X9260 integrates 2 digitally controlled
potentiometer (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
SPI bus interface. Each potentiometer has associated
with it a volatile Wiper Counter Register (WCR) and a
four nononvolatile Data Registers 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 the default Data Register (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.
R
H0
R
H1
SPI
Bus
Interface
Address
Data
Status
Write
Read
Transfer
Inc/Dec
Bus
Interface
and Control
Control
Power-on Recall
Wiper Counter
Registers (WCR)
Data Registers
(DR0-DR3)
V
SS
V-
R
W0
R
L0
R
W1
R
L1
50k鈩?or 100k鈩?versions
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
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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.