Datasheet IDT OB1203SD-C4R

Digital RGB + IR / Ambient Light,
Proximity, Pulse Oximeter and
Heart-Rate Sensor OB1203
Preliminary
Short-Form Datasheet Description Color Sensor Features IDT’s OB1203 Sensor Module integrates a multi-channel light
sensor (LS/CS), a proximity sensor (PS), and a photoplethysmography sensor (PPG).  Four parallel channels (red, green, blue, clear)
 Accurate correlated color temperature (CCT)
 Accurate CIE 1931 XYZ (RGB) color measurement
 Very stable spectral response over angle of light incidence y The light sensor can be configured as an ambient light sensor (LS)
to measure ambient light similar to the human eye experience or
as an RGB color sensor (CS). The module has a fully integrated
biosensor for reflective photoplethysmography. With the appropriate algorithm, it can determine the human heart rate, oxygen
saturation (SpO2), respiration rate, and heart rate variability (a
measure of stress). The OB1203 integrates light sources and
drivers in a single optically optimized package.  Output resolution for CS: 13 to 20 bits in
ar Proximity Sensor Features  Integrated and trimmed LED source, driver, and photodetector
 Programmable, pulsed LED up to 250mA output current A major LS application for the device is in smart phones or other
mobile devices to enable brightness control of display panels. The
OB1203 can also determine proximity of nearby objects in order to
support the activation of touch screen displays or system functions.
The sensor combines optical sensing features (CS, LS, PS) and
bio-sensing functionality (PPG) without needing a visible optical
opening. The unique implementation of the OB1203 enables SpO2 …