描述 Description

The X9317 is a digitally controlled potentiometer (XDCP?). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface. The potentiometer is implemented by a resistor array composed of 99 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation. The device can be used as a three-terminal potentiometer for voltage control or as a two-terminal variable resistor for current control in a wide variety of applications.

特性 Features

? Solid-State Potentiometer
? 3-Wire Serial Up/Down Interface
? 100 Wiper Tap Points
? Wiper Position Stored in Nonvolatile Memory and Recalled on Power-up
? 99 Resistive Elements
? Temperature Compensated
? End-to-end Resistance Range ±20%
? Low Power CMOS
? VCC = 2.7V to 5.5V, and 5V ±10%
? Standby Current TOTAL Values = 10kΩ, 50kΩ, 100kΩ
? Packages
? 8 Ld SOIC, TSSOP, and MSOP
? Pb-Free (RoHS Compliant)

應(yīng)用 Application

? LCD Bias Control
? DC Bias Adjustment
? Gain and Offset Trim
? Laser Diode Bias Control
? Voltage Regulator Output Control