Scribd
Upload
929 views1 page

VGA Schematic

1. The document shows a circuit diagram for a VGA display controller that uses resistor networks to generate RGB color signals from a 16-bit VGA data input. 2. Key components include 11 resistor networks labeled RN1 through RN11 that divide the VGA data voltages to generate analog red, green, and blue signals, and other resistors and capacitors that generate the horizontal and vertical sync signals. 3. The circuit also includes an SD card interface connected to the VGA controller to allow loading of images and video onto the display.

Uploaded by

alexander
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
929 views1 page

VGA Schematic

1. The document shows a circuit diagram for a VGA display controller that uses resistor networks to generate RGB color signals from a 16-bit VGA data input. 2. Key components include 11 resistor networks labeled RN1 through RN11 that divide the VGA data voltages to generate analog red, green, and blue signals, and other resistors and capacitors that generate the horizontal and vertical sync signals. 3. The circuit also includes an SD card interface connected to the VGA controller to allow loading of images and video onto the display.

Uploaded by

alexander
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

1 2 3 4

VGAD[15..0] 65536色VGA
VGA
VGAD15 RN1 1K 6
0.5K RED 1 11
A A
VGAD14 1K 7
GREEN 2 12
8
BLUE 3 13 R1 22R VGA_HSYNC
VGAD13 RN2 2K
2K 9
4 14 R2 22R VGA_VSYNC
VGAD12 C1 C2 C3 10
4K 5P1 5P1 5P1 5 15
P1 3.3V
1 2 VGAD11 RN3 2K
SD_DIN 86 85 SD_NCS
3 4
SD_DOUT84 83 SD_CLK 8K C4 C5
5 6
VGAD15 80 77 VGAD14 5P1 5P1
7 8
VGAD13 76 75 VGAD12 RED
9 10
VGAD11 74 73 VGAD10
11 12
VGAD9 72 71 VGAD8
13 14
VGAD7 70 69 VGAD6 VGAD10 RN4 1K
15 16
VGAD5 68 67 VGAD4 0.5K
17 18
VGAD3 66 65 VGAD2 VGAD9
B 19 20 1K B
VGAD1 64 60 VGAD0
21 22
VGA_VSYNC 59 58 VGA_HSYNC
23 24
Header 12X2 VGAD8 RN5 2K
2K
VGAD7
4K

VGAD6 RN6 2K
3.3V
8K
R4
R3 R5
10K 10K
10K VGAD5 RN7 2K

U1 SD卡
R6 1
CS/DAT3
SD_NCS 10K 2 10 16K
C DI/CMD sw0 RN8 2K C
SD_DIN 3 11
VDD sw1
4
VDD
5 12
3.3V CLK
SD_CLK 6 13
VSS2
7 16 GREEN
DO/DAT0
SD_DOUT 8 17
DAT1
R7 10K 9
DAT2 VGAD4 RN9 1K
0.5K
C6 VGAD3
SD 1K
0.1uF

VGAD2 RN10 2K
2K
VGAD1
4K

VGAD0 RN11 2K Title


D D
8K
Size Number Revision
BLUE A4
Date: 2014/11/4 Sheet of
File: G:\ok\电阻网络版VGA\电阻网络版本VGA.SchDoc
Drawn By:
1 2 3 4

You might also like