EPC660 Datasheet, PDF (4/116 Pages) Espros Photonics corp – 3D TOF Imager 320 x 240 Pixel

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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