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EPC635 数据表(PDF) 93 Page - Espros Photonics corp |
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EPC635 数据表(HTML) 93 Page - Espros Photonics corp |
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93 / 97 page ![]() 8.7.23. DLL_filter_control DLL_filter_control DLL_filter_control 0xDF Bit No. 7 6 5 4 3 2 1 0 Bit name reserved dll_filter_ctrl_s2_sel reserved dll_filter_ctrl_s1_sel Operation RW Default 0 0 0 0 0 0 0 0 0x00 dll_filter_ctrl_s2_sel: Weighted averaging DLL match values between DCS frames. This filter can be programmed to run at every 2, 4, 8, … 128 DCS frame, depending on the weight selected using this register. Once the DLL is disabled, the average values are overriding the manual control. 000: disable 001: weight 1/2 010: weight 1/4 011: weight 1/8 100: weight 1/16 101: weight 1/32 110: weight 1/64 111: weight 1/128 dll_filter_ctrl_s1_sel: Weighted averaging DLL match values during synchronization for one DCS frame. This filter can be pro- grammed to run at every 8, 16, 32, … 512 LED pulse (i.e. runs at modulation clock frequency), depending on the weight selected using this register. Once the DLL is disabled, the average values are overriding the manual control. 000: disable 001: weight 1/8 010: weight 1/16 011: weight 1/32 100: weight 1/64 101: weight 1/128 110: weight 1/256 111: weight 1/512 Note: When DLL_control.dll_ctrl_ext = 1, dll_filter_ctrl_s1_sel and dll_filter_ctrl_s2_sel functions are suppressed. 8.7.24. Temp_ Temp_tl_cal1 Temperature sensor calibration 0xE8 Bit No. 7 6 5 4 3 2 1 0 Bit name Temp_tl_cal1[7:0] Operation RW Temp_tl_cal1: Temperature offset correction for calculation according the formula in chapter 5.8 by the application SW. Range approx. -27 … +27ºC with around 0.2ºC steps. The reference temperature is +27ºC. 0x7F (127) corresponds to 0ºC offset. 0xFF means not calibrated. Temp_tl_cal2 Temperature sensor calibration 0xE9 Bit No. 7 6 5 4 3 2 1 0 Bit name Temp_tl_cal2[7:0] Operation RW Temp_tl_cal2: Temperature slope correction for calculation according the formula in chapter 5.8 by the application SW. 0.01LSB/ºC. 0x7F (127) corresponds to 0LSB/ºC. 0xFF means not calibrated. 8.7.25. User_ User_1 User register 1 for user data 0xF0 Operation RW Default 0x00 © 2017 ESPROS Photonics Corporation Characteristics subject to change without notice 93 / 97 Datasheet_epc635-V1.02 www.espros.com |
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