X9410

® X9410 Low Noise/Low Power/SPI Bus Data Sheet October 12, 2006 FN8193.2 Dual Digitally Controlled Potentiometer (XDCP™) FEATURES Two potentiometers per package SPI serial interface Register oriented format - Direct read/write/transfer wiper positions - Store as many as four positions per potentiometer Power supplies - VCC = 2.7V to 5.5V - V+ = 2.7V to 5.5V - V- = -2.7V to -5.5V Low power CMOS - Standby current < 1µA - High reliability - Endurance - 100,000 data changes per bit per register - Register data retention - 100 years 8-bytes of nonvolatile EEPROM memory www.DataSheet4U.com 10kΩ resistor arrays Resolution: 64 taps each pot 24 Ld SOIC, 24 Ld TSSOP, and 24 Ld plastic DIP packages Pb-free plus anneal available (RoHS compliant) BLOCK DIAGRAM VCC VSS V+ VHOLD CS SCK SO SI A0 A1 WP DESCRIPTION The X9410 integrates two digitally controlled potentiometers (XDCPs) on a monolithic CMOS integrated circuit. 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: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 throu...