Sine mode: Distance calculation algorithm...............................................................................................................................................54

Sine mode: Quality of the measurement result.........................................................................................................................................55

6.1.3. PN mode (Pseudo-random Noise modulation).................................................................................................................................58

PN mode: Distance calculation algorithm:.................................................................................................................................................59

PN mode: Quality of the measurement result...........................................................................................................................................60

PN initialization..........................................................................................................................................................................................60

6.2. Grayscale mode...................................................................................................................................................................................61

7. Application information...........................................................................................................................................................................62

7.1. Example sequence from the start-up to frame acquisition..................................................................................................................62

7.2. Basic measurement mode setting.......................................................................................................................................................63

7.3. 3D TOF distance measurement flow...................................................................................................................................................64

7.4. Operating and unambiguity range versus time base setting...............................................................................................................67

7.5. Integration time setting........................................................................................................................................................................68

7.6. Special mode setting...........................................................................................................................................................................69

7.6.1. Binning, column/row reduction in basic measurement modes (Single MGX mode)........................................................................69

7.6.2. Binning, column/row reduction in enhanced measurement modes (Dual MGX mode)...................................................................70

TOF dual DCS acquisition with phase shifted integration time (motion blur reduction)............................................................................70

TOF and grayscale single DCS acquisition with 2 different integration times (High dynamic range).......................................................71

7.6.3. ROI setting (region of interest) ........................................................................................................................................................72

7.6.4. epc635 emulation.............................................................................................................................................................................73

7.7. Power saving options...........................................................................................................................................................................75

7.8. Rolling DCS frames.............................................................................................................................................................................76

7.9. Enhanced rolling DCS frame mode.....................................................................................................................................................76

7.10. External modulation MODCLK..........................................................................................................................................................77

7.10.1. Using the DLL with an external modulation clock..........................................................................................................................78

7.10.2. DLL manual locking operation........................................................................................................................................................78

7.11. Calculation of PN mode polynomials (m-sequences).......................................................................................................................80

7.12. epc660 Card Edge Connector Carrier...............................................................................................................................................81

7.12.1. Schematics.....................................................................................................................................................................................81

7.12.2. Board layout and assembly............................................................................................................................................................82

8. Control registers and EEPROM..............................................................................................................................................................85

8.1. Memory map........................................................................................................................................................................................85

8.2. Control page........................................................................................................................................................................................85

8.3. EEPROM page, EEPROM and its charge pump.................................................................................................................................85

8.4. Register map........................................................................................................................................................................................87

8.5. Register description: Explanation example.........................................................................................................................................91

8.6. Register description: Control Page (0x00 ~ 0x7F)..............................................................................................................................91

8.6.1. IC_....................................................................................................................................................................................................91

8.6.2. EE_ (ADDR, DATA, MASK).............................................................................................................................................................91

8.6.3. Strap_...............................................................................................................................................................................................92

8.6.4. MT_...................................................................................................................................................................................................92

8.6.5. Sum_Temp_.....................................................................................................................................................................................95

8.6.6. DLL_status........................................................................................................................................................................................96

8.6.7. DLL_fine_ctrl_ext..............................................................................................................................................................................97

8.6.8. DLL_coarse_ctrl_ext.........................................................................................................................................................................97

8.6.9. CFG_Mode_.....................................................................................................................................................................................97

8.7. Register description: EEPROM Page-0 (0x80 ~ 0xFF).......................................................................................................................98

8.7.1. CLK_enables....................................................................................................................................................................................98

8.7.2. MOD_CLK_divider............................................................................................................................................................................99

8.7.3. TCMI_CLK_divider...........................................................................................................................................................................99

8.7.4. Demodulation_delays.....................................................................................................................................................................100

8.7.5. PN_.................................................................................................................................................................................................100

8.7.6. LED_driver......................................................................................................................................................................................101

8.7.7. SEQ_Control...................................................................................................................................................................................102

8.7.8. MOD_Control **..............................................................................................................................................................................102

8.7.9. Dist_offset **...................................................................................................................................................................................103

8.7.10. Resolution_reduction **................................................................................................................................................................103

8.7.11. Readout_dir **..............................................................................................................................................................................103

8.7.12. ROI_..............................................................................................................................................................................................104

8.7.13. Int_len_mgx1_..............................................................................................................................................................................105

8.7.14. INTM_...........................................................................................................................................................................................105

8.7.15. Int_len_.........................................................................................................................................................................................106

8.7.16. Shutter_Control.............................................................................................................................................................................106

8.7.17. Power_Control (analog)................................................................................................................................................................106

8.7.18. DLL_en_.......................................................................................................................................................................................107

8.7.19. DLL_measurement_rate_.............................................................................................................................................................107

8.7.20. DLL_match_width.........................................................................................................................................................................108

8.7.21. DLL_control..................................................................................................................................................................................108

8.7.22. I2C_TCMI_...................................................................................................................................................................................109

8.7.23. TCMI_polarity...............................................................................................................................................................................110

8.7.24. DLL_filter_control..........................................................................................................................................................................111

8.7.25. Temp_...........................................................................................................................................................................................111

8.7.26. User_............................................................................................................................................................................................112

8.7.27. CUSTOMER_ID............................................................................................................................................................................112

8.7.28. WAFER_ID_.................................................................................................................................................................................113

8.7.29. CHIP_ID_......................................................................................................................................................................................113

8.7.30. PART_..........................................................................................................................................................................................113

9. Notes to various chip releases.............................................................................................................................................................114

9.1. New features in chip versions > -003................................................................................................................................................114

© 2017 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Datasheet_epc660-V1.09

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