HDJD-JD02 Avago Technologies US Inc., HDJD-JD02 Datasheet - Page 7

• Manufacturer Part Number: HDJD-JD02
• Description: KIT DEV RGB COLOR SENSOR 16-QFN
• Manufacturer: Avago Technologies US Inc.

Specifications of HDJD-JD02

• Sensor Type: Light, Color Sensor
• Sensing Range: RGB
• Interface: Analog
• Voltage - Supply: 4.5 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: HDJD-S722-QR999
• For Use With/related Products: HDJD-S722-QR999
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

7
Transmissive Color Sensing Theory of Operation
By transmissive, it means the application kit is placed facing the light source being measured. The filter-
coated photodiode array of the color sensor converts the R, G,
photocurrent, which is then amplified and turned into analogue voltages for each of the primary
component. Given that any colored light is uniquely represented by the ratio of the primary colors, the
color sensor provides a definite manner of measuring color. In addition, the sensor is also responsive to
light intensity where its outputs increase linearly with increasing light intensity. For a given light source,
the application kit can also be used to determine the color of transparent medium through which the
light is passed before reaching the sensor. For example, the medium could be glass, plastic or liquid.
Figure 3.4 R,G,B outputs of sensor are determined by color of light falling on sensor.
Figure 3.5 Apply color sensor on media such as color filter, liquid and gas.
Figure 3.3 Schematic of Transmissive Sensing Kit (TSK).
Amplifier 1x
or 10x gain
B
components of light falling on it into
VRout
VGout
VBout
Color Sensor
Light Source