LX1800

www.DataSheet4U.com LX1800 TM ® SMBus to Analog Interface P RODUCTION D ATA S HEET DESCRIPTION KEY FEATURES ƒ 8 bit accuracy ƒ ADC and DAC in one package ƒ Fully compliant to standard SMBus ƒ Bus controllable Sleep mode ƒ Optional external reference The LX1800 bridges the analog and digital world. The analog interface contains and eight bit ADC and 8 bit DAC and the digital interface is a serial data SMBus interface. The LX1800 works well in a feedback control system such as an LCD backlight system where the analog output of an ambient light sensor such as the LX1972 can be digitized allowing the micro controller to adjust the analog dimming signal accordingly. The LX1800 has an internal bandgap reference and also allows the use of an external reference. The external reference can be used as an analog input for volume control using the DAC or to provide wider range for high amplitude analog signals. The 8 pin MLP package is small occupying no more area than a TSOT package. WWW . Microsemi . C OM APPLICATIONS ƒ ƒ ƒ ƒ Processor controlled dimming VID control interface Digital regulator control Audio volume control IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com PRODUCT HIGHLIGHT 3.3V To µP SCL SCD GND ADR VDD REF AIN AOUT LX1972 LX1800 BRT LX1691 Based Module CCFL LX1800 PACKAGE ORDER INFO TJ (°C) -40 to +85 LD Plastic MLP 8-pin RoHS Compliant / Pb-free LX1800ILD Note: Available in Tape & Reel. Append the le...