Table of Contents

General Description............................................................................................................................................................................................1

Features............................................................................................................................................................................................................. 1

Possible Applications......................................................................................................................................................................................... 1

Functional Block Diagram.................................................................................................................................................................................. 1

Absolute Maximum Ratings (Note 1, 2) ............................................................................................................................................................ 3

Operating Ratings.............................................................................................................................................................................................. 3

Electrical Characteristics....................................................................................................................................................................................3

Timing and optical Characteristics..................................................................................................................................................................... 4

Other Parameters...............................................................................................................................................................................................5

Pin Configuration................................................................................................................................................................................................6

Layout information..............................................................................................................................................................................................7

CSP-24 Package (all measures in mm, ).................................................................................................................................................... 7

Design precautions...................................................................................................................................................................................... 7

ESD protection.............................................................................................................................................................................................7

Reflow Solder Profile..........................................................................................................................................................................................8

Packaging Information (all measures in mm).....................................................................................................................................................8

Ordering information...........................................................................................................................................................................................8

Functional Description........................................................................................................................................................................................9

1. Operation.................................................................................................................................................................................................. 9

1.1. Introduction............................................................................................................................................................................................ 9

1.2. General overview...................................................................................................................................................................................9

1.3. Operational mode................................................................................................................................................................................ 10

1.3.1. Distance measurement.....................................................................................................................................................................10

1.3.2. System sensitivity, integration time and operating range ................................................................................................................. 11

1.3.3. Ambient-light suppression................................................................................................................................................................ 12

1.3.4. Quality of the measurement result....................................................................................................................................................12

1.3.5. Ambient-light measurement (optical power-meter).......................................................................................................................... 14

1.3.6. Temperature metering.......................................................................................................................................................................14

1.3.7. Measurement sequence................................................................................................................................................................... 15

1.3.8. Calibration and compensations........................................................................................................................................................ 16

1.3.9. Extended operating range................................................................................................................................................................ 16

1.3.10. Multi range-finder application......................................................................................................................................................... 16

2. Hardware Design.................................................................................................................................................................................... 17

2.1. What performance can be achieved?..................................................................................................................................................17

2.2. General Hardware Configuration.........................................................................................................................................................18

2.3. Power Supply, Clock generation..........................................................................................................................................................18

2.4. On-chip LED driver.............................................................................................................................................................................. 19

LEDs with a +5V supply.............................................................................................................................................................................19

Short range application design (LED supply from +8.5V) ......................................................................................................................... 19

Mid range application design (LED supply from +8.5V) ............................................................................................................................ 20

2.5. External LED driver..............................................................................................................................................................................20

3. Instruction Set......................................................................................................................................................................................... 21

3.1. 2-wire serial interface...........................................................................................................................................................................21

3.1.1. SCLK line.......................................................................................................................................................................................... 21

3.1.2. SDATA line........................................................................................................................................................................................ 21

3.2. Commands & responses..................................................................................................................................................................... 23

3.2.1. Command: Commands & Integration times..................................................................................................................................... 23

3.2.2. Response: Distance..........................................................................................................................................................................24

3.2.3. Response: Valid & saturated pixels .................................................................................................................................................. 24

3.2.4. Response: Q-subsample QSx.......................................................................................................................................................... 24

3.2.5. Response: Ambient-light level.......................................................................................................................................................... 25

3.2.6. Response: Temperature................................................................................................................................................................... 25

3.3. Communication tasks.......................................................................................................................................................................... 26

3.3.1. Measurement sequence (Distance or ambient-light) ....................................................................................................................... 26

3.3.2. Read sequence (Valid & saturated pixels, Q-subsample QSx, Temperature) ................................................................................. 26

3.3.3. Error detection by the microprocessor............................................................................................................................................. 26

3.3.4. Reset and recovery sequence sequence ......................................................................................................................................... 27

3.3.5. Error detection by the epc600 chip ...................................................................................................................................................27

3.3.6. Cycle times & response time............................................................................................................................................................ 28

Integration time.......................................................................................................................................................................................... 28

Measurement time..................................................................................................................................................................................... 28

Communication time.................................................................................................................................................................................. 28

Data processing time................................................................................................................................................................................. 28

Measurement cycle time............................................................................................................................................................................28

Response time........................................................................................................................................................................................... 28

LED on-time and LED duty cycle...............................................................................................................................................................28

4. Optical Design Considerations............................................................................................................................................................... 29

Photosensitive area................................................................................................................................................................................... 29

Signal sensitivity........................................................................................................................................................................................ 29

Ambient-light suppression..........................................................................................................................................................................29

Operating range......................................................................................................................................................................................... 29

IMPORTANT NOTICE......................................................................................................................................................................................30

© 2014 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Datasheet epc600 - V1.3

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