VGA to HDMI Converter Teardown - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: April 19, 2019, 08:48:32 am
content: Inside one of those cheap VGA to HDMI adaptersAnyone got a datasheet for the chipset?BTW, a company I worked at designed a VGA to LCD converter back in 1994, it took a pizza box sized board of chips to do less than this does.

author: EEVblog
author_rank: Unknown
timestamp: April 19, 2019, 09:09:44 am
content: Datasheet:http://mu.elecfans.net/201709/XR001%20VGA-VR1.0%20-.pdf

author: NiHaoMike
author_rank: Super Contributor
timestamp: April 19, 2019, 11:17:12 pm
content: I wonder if it could be possible to plug it into a FPGA board or HDMI capture card to get a really fast ADC for SDR stuff. Or even as an insanely cheap scope with a decent bandwidth.

author: arekm
author_rank: Unknown
timestamp: December 18, 2021, 07:44:52 pm
content: Mine is different. Unfortunately not reliable. 2 vga sources, 3 monitors and only one combination of vga source and monitor works :/http://en.macrosilicon.com/info.asp?base_id=2&third_id=3Xorg seeing this adapter reports:[3833471.352] (II) modeset(0): EDID for output VGA-1[3833471.352] (II) modeset(0): Manufacturer: HJW Model: 0 Serial#: 16777216[3833471.352] (II) modeset(0): Year: 2013 Week: 41[3833471.352] (II) modeset(0): EDID Version: 1.3[3833471.352] (II) modeset(0): Analog Display Input, Input Voltage Level: 0.700/0.300 V[3833471.352] (II) modeset(0): Sync: Separate Composite SyncOnGreen[3833471.352] (II) modeset(0): Max Image Size : horiz.: 51 vert.: 29[3833471.352] (II) modeset(0): Gamma: 2.20[3833471.352] (II) modeset(0): DPMS capabilities: Off; RGB/Color Display[3833471.352] (II) modeset(0): First detailed timing is preferred mode[3833471.352] (II) modeset(0): redX: 0.640 redY: 0.328 greenX: 0.297 greenY: 0.599[3833471.352] (II) modeset(0): blueX: 0.150 blueY: 0.062 whiteX: 0.312 whiteY: 0.328[3833471.352] (II) modeset(0): Supported established timings:[3833471.352] (II) modeset(0): 640x480@60Hz[3833471.352] (II) modeset(0): 640x480@75Hz[3833471.352] (II) modeset(0): 800x600@60Hz[3833471.352] (II) modeset(0): 800x600@75Hz[3833471.352] (II) modeset(0): 1024x768@60Hz[3833471.352] (II) modeset(0): 1024x768@70Hz[3833471.352] (II) modeset(0): 1024x768@75Hz[3833471.352] (II) modeset(0): 1280x1024@75Hz[3833471.352] (II) modeset(0): Manufacturer's mask: 0[3833471.352] (II) modeset(0): Supported standard timings:[3833471.352] (II) modeset(0): #0: hsize: 1152 vsize 864 refresh: 75 vid: 20337[3833471.352] (II) modeset(0): #1: hsize: 1280 vsize 800 refresh: 60 vid: 129[3833471.352] (II) modeset(0): #2: hsize: 1280 vsize 960 refresh: 60 vid: 16513[3833471.352] (II) modeset(0): #3: hsize: 1280 vsize 1024 refresh: 60 vid: 32897[3833471.352] (II) modeset(0): #4: hsize: 1440 vsize 900 refresh: 60 vid: 149[3833471.352] (II) modeset(0): #5: hsize: 1600 vsize 1200 refresh: 60 vid: 16553[3833471.352] (II) modeset(0): #6: hsize: 1680 vsize 1050 refresh: 60 vid: 179[3833471.352] (II) modeset(0): #7: hsize: 1440 vsize 900 refresh: 75 vid: 3989[3833471.352] (II) modeset(0): Supported detailed timing:[3833471.352] (II) modeset(0): clock: 148.5 MHz Image Size: 509 x 286 mm[3833471.352] (II) modeset(0): h_active: 1920 h_sync: 2008 h_sync_end 2052 h_blank_end 2200 h_border: 0[3833471.352] (II) modeset(0): v_active: 1080 v_sync: 1084 v_sync_end 1089 v_blanking: 1125 v_border: 0[3833471.352] (II) modeset(0): Ranges: V min: 60 V max: 61 Hz, H min: 30 H max: 81 kHz, PixClock max 155 MHz[3833471.352] (II) modeset(0): Monitor name: VGA TO HDMI[3833471.352] (II) modeset(0): Serial No:[3833471.352] (II) modeset(0): EDID (in hex):[3833471.352] (II) modeset(0): 00ffffffffffff002157000000000001[3833471.352] (II) modeset(0): 291701030e331d782ac1b0a3544c9926[3833471.352] (II) modeset(0): 0f5054254f00714f8100814081809500[3833471.352] (II) modeset(0): a940b300950f023a801871382d40582c[3833471.352] (II) modeset(0): 4500fd1e1100001e000000fd003c3d1e[3833471.352] (II) modeset(0): 510f000a202020202020000000fc0056[3833471.352] (II) modeset(0): 474120544f2048444d490a20000000ff[3833471.352] (II) modeset(0): 000a202020202020202020202020008a[3833471.352] (II) modeset(0): Not using mode "1600x1200" (bad mode clock/interlace/doublescan)[3833471.352] (II) modeset(0): Printing probed modes for output VGA-1[3833471.352] (II) modeset(0): Modeline "1920x1080"x60.0 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)[3833471.352] (II) modeset(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz e)[3833471.352] (II) modeset(0): Modeline "1280x1024"x75.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)[3833471.352] (II) modeset(0): Modeline "1280x1024"x60.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)[3833471.352] (II) modeset(0): Modeline "1440x900"x75.0 136.75 1440 1536 1688 1936 900 903 909 942 -hsync +vsync (70.6 kHz e)[3833471.352] (II) modeset(0): Modeline "1440x900"x59.9 106.50 1440 1520 1672 1904 900 903 909 934 -hsync +vsync (55.9 kHz e)[3833471.352] (II) modeset(0): Modeline "1280x800"x59.8 83.50 1280 1352 1480 1680 800 803 809 831 -hsync +vsync (49.7 kHz e)[3833471.352] (II) modeset(0): Modeline "1024x768"x75.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)[3833471.352] (II) modeset(0): Modeline "1024x768"x70.1 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e)[3833471.352] (II) modeset(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)[3833471.352] (II) modeset(0): Modeline "800x600"x75.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)[3833471.352] (II) modeset(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)[3833471.352] (II) modeset(0): Modeline "640x480"x75.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)[3833471.352] (II) modeset(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)parse-edid from read-edid tools:# cat edid.bin | parse-edidChecksum CorrectSection "Monitor"Identifier "VGA TO HDMI"ModelName "VGA TO HDMI"VendorName "HJW"# Monitor Manufactured week 41 of 2013# EDID version 1.3# Analog DisplayOption "SyncOnGreen" "true"DisplaySize 510 290Gamma 2.20Option "DPMS" "true"Horizsync 30-81VertRefresh 60-61# Maximum pixel clock is 150MHz#Not giving standard mode: 1152x864, 75Hz#Not giving standard mode: 1280x800, 60Hz#Not giving standard mode: 1280x960, 60Hz#Not giving standard mode: 1280x1024, 60Hz#Not giving standard mode: 1440x900, 60Hz#Not giving standard mode: 1600x1200, 60Hz#Not giving standard mode: 1680x1050, 60Hz#Not giving standard mode: 1440x900, 75HzModeline "Mode 0" +hsync +vsyncEndSection