X9409WV24IZ-2.7集成電路（IC）的數(shù)字電位計(jì)規(guī)格書PDF中文資料

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)