
Melexis Microelectronic Systems
General Description
The MLX75030 Universal ActiveLight Sensor Interface has been designed to allow easy and robust dual-channel optical reflection and dual channel ambient light measurement. Therefore it is ideally suited for the design of responsive human-machine interfaces (HMI) that require proximity or gesture detection in environments subject to wide background light level variations, possibly in combination with display dimming.
FEATUREs & Benefits
◾ Two independent simultaneously
operating active light measurement
channels
◾ Integrated DC light cancellation circuitry
for active light channel DC light
suppression
◾ Two logarithmic ambient light channels
◾ High input capacitance tolerant input
current terminals
◾ Extremely high degree of adaptability
for different optical systems
◾ Stand-by and sleep modes
◾ Integrated 16Bit ADC
◾ Integrated temperature sensor
◾ Easy digital communication interface via
SPI
◾ Integrated watchdog timer
◾ High safety design by comprehensive
diagnostic and monitoring functions
◾ Minimum amount of external
components
◾ Small-size SMD package QFN24 4x4 mm
APPLICATION Examples
◾ Optical proximity sensing & display
dimming
◾ Touch-less gesture recognition
◾ Driver/passenger discrimination
◾ Touch Screen Wake-up on Proximity