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Microsemi Corporation - SMBus to Analog Interface

Numéro de référence LX1800
Description SMBus to Analog Interface
Fabricant Microsemi Corporation 
Logo Microsemi Corporation 





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LX1800 fiche technique
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LX1800
TM ® SMBus to Analog Interface
PRODUCTION DATA SHEET
DESCRIPTION
The LX1800 bridges the analog and The LX1800 has an internal bandgap
digital world. The analog interface reference and also allows the use of an
contains and eight bit ADC and 8 bit external reference. The external
DAC and the digital interface is a reference can be used as an analog input
serial data SMBus interface. The for volume control using the DAC or to
LX1800 works well in a feedback provide wider range for high amplitude
control system such as an LCD analog signals.
backlight system where the analog The 8 pin MLP package is small
output of an ambient light sensor such occupying no more area than a TSOT
as the LX1972 can be digitized package.
allowing the micro controller to adjust
the analog dimming signal
accordingly.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
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
APPLICATIONS
ƒ Processor controlled dimming
ƒ VID control interface
ƒ Digital regulator control
ƒ Audio volume control
PRODUCT HIGHLIGHT
3.3V
To µP
SCL
SCD
GND
ADR
VDD
REF
AIN
AOUT
LX1800
LX1972
BRT
LX1691
Based
Module
CCFL
Copyright © 2004
Rev. 1.0, 2006-01-05
TJ (°C)
-40 to +85
PACKAGE ORDER INFO
Plastic MLP
LD 8-pin
RoHS Compliant / Pb-free
LX1800ILD
Note: Available in Tape & Reel. Append the letters “TR” to the part number.
(i.e. LX1800ILD-TR)
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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