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X9409

Intersil Corporation
Part Number X9409
Manufacturer Intersil Corporation
Description Quad Digitally Controlled Potentiometers
Published Jun 4, 2007
Detailed Description OBSOLETE PRODUCT DATASHEET NO RECOMMENDED REPLACEMENT contact our Technical Support Center at X9409 1-888-INTERSIL ...
Datasheet PDF File X9409 PDF File

X9409
X9409

Overview
OBSOLETE PRODUCT DATASHEET NO RECOMMENDED REPLACEMENT contact our Technical Support Center at X9409 1-888-INTERSIL or www.
intersil.
com/tsc FN8192 Low Noise/Low Power/2-Wire Bus Quad Digitally Controlled Potentiometers Rev.
6.
00 (XDCP) Sep 3, 2015 The X9409 integrates 4 digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated microcircuit.
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.
Features • Four potentiometers per package • 64 resistor taps • 2-wire serial interface for write, read and transfer operations of the potentiometer • 50Ω wiper resistance, typical at 5V • Four nonvolatile data registers for each potentiometer • Nonvolatile storage of multiple wiper position • Power-on recall.
Loads saved wiper position on power-up standby current < 1µA typical • System VCC: 2.
7V operation • 10kΩ end-to-end resistance • 100 year data retention • Endurance: 100,000 data changes per bit per register • Low power CMOS • 24 Ld TSSOP • Pb-free (RoHS compliant) VCC VSS WP SCL SDA A0 A1 A2 A3 INTERFACE AND CONTROL CIRCUITRY 8 DATA POT 0 R0 R1 WIPER COUNTER REGISTER R2 R3 (WCR) VH0/RHO VL0/ RLO VW0/ RWO R0 R1 WIPER COUNTER REGISTER R2 R3 (WCR) RESISTOR ARRAY POT 2 VH2/RH2 VL2/RL2 VW2...


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