HDJD-JD02 Avago Technologies US Inc., HDJD-JD02 Datasheet - Page 3

• 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

1.0 Introduction
Being able to accurately and consistently ‘name’ a color, the Avago color sensor opens up opportunities
to manipulate and control color. It is ideal for color detection, differentiation and control in both open
and closed loop systems. Potential areas of application are office automation, quality control and color
coding in such industries as food, textile, paint, assembly and packaging, environmental lighting,
consumer good, pharmaceutical, medical and research and automotive.
The Avago sensor development kit is used to demonstrate the principle of color sensing in reflective and
transmissive context.
A reflective color sensing system comprises of three main elements namely illuminant, non-emissive
object and observer/sensor. The illuminant, as the name implies, will illuminate the object under
observation and reflected light will be captured by the system’s sensor. The resultant color information
will be governed by the illuminant spectrum, object surface reflectance and sensor/observer spectral
response.
The 45 /0 directional measurement method is adopted in Avago sensor development kit. Avago white
phosphor LED is used as the illuminant at the incident angle of approximately 45 while sensor at 0 . At
a distance of 20mm along the surface orthogonal, diffusely reflected light is detected by Avago color
sensor and digitized by A/D board. The development kit program reads the digitized sensor data from
A/D board via parallel interface and performs various color information computation.
Unlike reflective color sensing system, a transmissive color sensing system only comprises of two
elements namely observer/sensor and emissive object. The light emitted from the object will be captured
by the system’s sensor. The resultant color information will be governed by the emission spectrum and
sensor/observer spectral response.
Avago sensor development kit serves an exemplary circuit application for composing other simple
reflective and transmissive color detection system with Avago color sensors.
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