Hi, all: I tried to set the LM98620 to get a " more stable " & " low SNR " output. However, it's difficult to both achieve this goal ("more stable" & "low SNR") in my settings. Maybe I put some wrong settings in LM98620 registers. But, where is the problem? I really have no ideas. Does anybody can help me analysis the output as shown below? ■OSX Inputs OSR1(and other channels) and MCLK input OSR1 According to light source(from weak to strong) react So, I conjecture the OSX inputs are OK. ■Setting Imformations OSX pixel rate: 20MHz(same as MCLK, SHP, SHD, TESTO1, TESTO0) Input Mode: 6-channel(pixel rate MCLK) Input Timing Mode: CDSb(CDS mode, sampled by SHP and SHD clocks) Sample Timing Pulses routed to TESTO outputs(0x00[1]=1) "SHP & AFEPHASE" routed to "TESTO1" "SHD & !AFEPHASE" routed to "TESTO0" LVDS ouput format: Mode 2a, 5 pair output(0x01[2:1]=01) ■LVDS Outputs Situation Situation A : " more stable "(no sway), but " high SNR ". At AFEPHASE(0x02[3:2])=10, move SHP and SHD. no light source weak light source strong light source Situation B : " low SNR ", but " less stable "(always sway). At AFEPHASE(0x02[3:2])=10, move SHP and SHD. no light source weak light source strong light source If you want to know more information about settings, please tell me . Thank you :)
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