APDS-9702-020 Broadcom

APDS-9702 Signal Conditioning IC for Optical Proximity Sensors 2 with Digital I C Interface Data Sheet Description Features APDS-9702 is a signal conditioning IC that enhances the Low power consumption performance and robustness of the optical sensors used Internal oscillation circuit to drive LED in pulse for proximity or object detection. mode 2 Low shut down current APDS-9702 is a single chip solution that consists of an I C Write function, oscillation circuit, LED driver circuit and External LED drive-current control sunlight cancellation circuit integrated into a single chip. Complete shutdown mode APDS-9702 has articial light immunity and is also op- Low shutdown current erational under the sun. Design exibility is optimized as Supply voltage : 2.4 V to 3.6 V APDS-9702 can be paired up with an integrated proximity sensor or discrete pair solution. Operational in sunlight conditions up to 100klux(with HSDL-9100) APDS-9702 can be disabled to maximize power savings and battery life in applications such as portable or bat- Articial light immunity tery-operated devices. The LED current of the optical Analog & Digital output available proximity sensors can be congured to dierent levels Built in comparator for digital output using a limiting resistor at the LEDA pin. APDS-9702 also Digital output remains Low during object detected. provides user options in frequency, suitable burst rate, comparator threshold setting and burst o period that can Wide bandwidth Trans-impedance amplier reduce power consumption. These low power consump- External capacitor and resistor for integration and gain tion features makes it also ideal for low power mobile and controls handheld devices. Flexibility to enhance detection distance up to 200mm APDS-9702 is capable of operating at voltage supply with HSDL-9100 or further with external discrete pair ranging from 2.4 V to 3.6 V. APDS-9702 has two separate Small 2mm x 2mm QFN 8-pin package output pins for analog and digital outputs. This provides Design exibility to pair with Avago Proximity Sensors exibility to use either the analog or digital output (or or discrete pair solution both) depending on the requirements of the application. Lead-free & RoHS Compliant The device is packaged in 8-pin QFN package measuring 0.55mm(H) x 2mm(W) x 2mm(L). Applications PDA and mobile phones Ordering Information Digital Camera Part Number Packaging Quantity Portable and Handheld devices APDS-9702-020 Tape & Reel 2500 per reel Personal Computers/Notebooks Amusement/Games/Vending Machines Application Support Information Industrial Automation The Application Engineering Group is available to Contactless Switches assist you with the application design associated with Sanitary Automation APDS-9702 module. You can contact them through your local sales representatives for additional details.APDS-9702 Block Diagram V CC (8) V CC Rp Rp (7) LEDA Timing (1) SDA Control I2C (2) SCL Sunlight Cancellation R1 Avago Oscillator (5) PD Proximity Sensor TIA V PIN LED CC R2 (6) PFILT R3 CX3 V-I Converter (Optional) + Latch (3) DOUT Comparator 100k 300k 500k (4) GND Figure 1. APDS-9702 Block Diagram 2