EESchema Schematic File Version 2  date Thu 28 Mar 2013 01:04:26 AM EDT
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
EELAYER 25  0
EELAYER END
$Descr A4 11700 8267
encoding utf-8
Sheet 1 1
Title ""
Date "28 mar 2013"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Notes 8700 3950 0    60   ~ 0
-Sets the phase\n-Sets the intensity
Text Notes 10300 3500 2    60   ~ 0
Frame
Text Notes 9600 3700 2    60   ~ 0
Colorburst @ 3.58 MHz
Text Notes 8400 3800 2    60   ~ 0
Sync Tip
Text Notes 9600 3150 2    100  ~ 20
The Colorburst
Wire Wire Line
	10250 3350 9850 3350
Wire Wire Line
	9850 3350 9850 3450
Wire Wire Line
	9850 3450 9450 3450
Wire Wire Line
	9450 3450 9450 3550
Wire Wire Line
	9450 3550 9400 3550
Wire Wire Line
	9400 3550 9400 3350
Wire Wire Line
	9400 3350 9350 3350
Wire Wire Line
	9350 3350 9350 3550
Wire Wire Line
	9350 3550 9300 3550
Wire Wire Line
	9300 3550 9300 3350
Wire Wire Line
	9300 3350 9250 3350
Wire Wire Line
	9250 3350 9250 3550
Wire Wire Line
	9250 3550 9200 3550
Wire Wire Line
	9200 3550 9200 3350
Wire Wire Line
	9200 3350 9150 3350
Wire Wire Line
	9150 3350 9150 3550
Wire Wire Line
	9100 3550 9150 3550
Wire Wire Line
	9100 3550 9100 3350
Wire Wire Line
	9100 3350 9050 3350
Wire Wire Line
	9050 3350 9050 3550
Wire Wire Line
	9050 3550 9000 3550
Wire Wire Line
	9000 3550 9000 3350
Wire Wire Line
	9000 3350 8950 3350
Wire Wire Line
	8950 3350 8950 3550
Wire Wire Line
	8950 3550 8900 3550
Wire Wire Line
	8900 3550 8900 3350
Wire Wire Line
	8900 3350 8850 3350
Wire Wire Line
	8850 3350 8850 3550
Wire Wire Line
	8850 3550 8800 3550
Wire Wire Line
	8800 3550 8800 3350
Wire Wire Line
	8800 3350 8750 3350
Wire Wire Line
	8750 3350 8750 3550
Wire Wire Line
	8750 3550 8700 3550
Wire Wire Line
	8700 3550 8700 3350
Wire Wire Line
	8700 3350 8650 3350
Wire Wire Line
	8650 3350 8650 3450
Wire Wire Line
	8650 3450 8450 3450
Wire Wire Line
	8450 3450 8450 3650
Wire Wire Line
	8450 3650 8150 3650
Wire Wire Line
	8150 3650 8150 3450
Wire Wire Line
	8150 3450 7900 3450
Wire Bus Line
	6600 5750 6600 6500
Wire Bus Line
	5300 5750 5300 6500
Connection ~ 5550 5850
Wire Wire Line
	5150 5850 7000 5850
Wire Notes Line
	6300 2450 6600 2450
Wire Notes Line
	6300 2900 6600 2900
Wire Wire Line
	6250 2200 6250 2300
Wire Wire Line
	5050 1800 5600 1800
Wire Wire Line
	5050 1550 5600 1550
Wire Wire Line
	6100 1550 6100 1800
Wire Wire Line
	6300 1650 6100 1650
Connection ~ 6100 1650
Connection ~ 2550 6500
Wire Wire Line
	2750 6500 2550 6500
Wire Wire Line
	2550 6400 2550 6650
Wire Wire Line
	1500 6400 2050 6400
Wire Notes Line
	1050 3650 3000 3650
Wire Notes Line
	3200 2900 3500 2900
Wire Notes Line
	3200 3050 3500 3050
Wire Notes Line
	1750 3200 1600 3200
Wire Notes Line
	1600 3200 1600 3050
Wire Notes Line
	1100 3150 1100 3000
Wire Notes Line
	1300 2700 1300 2950
Connection ~ 1750 2900
Wire Wire Line
	1750 2950 1750 2600
Connection ~ 2950 1950
Connection ~ 2950 1900
Wire Wire Line
	2950 1950 2950 1900
Connection ~ 2850 1950
Connection ~ 2850 1900
Wire Wire Line
	2850 1950 2850 1900
Connection ~ 2750 1950
Connection ~ 2750 1900
Wire Wire Line
	2750 1950 2750 1900
Connection ~ 2650 1950
Connection ~ 2650 1900
Wire Wire Line
	2650 1950 2650 1900
Connection ~ 2550 1950
Connection ~ 2550 1900
Wire Wire Line
	2550 1950 2550 1900
Connection ~ 2450 1950
Connection ~ 2450 1900
Wire Wire Line
	2450 1950 2450 1900
Connection ~ 2350 1950
Connection ~ 2350 1900
Wire Wire Line
	2350 1950 2350 1900
Connection ~ 2250 1950
Connection ~ 2250 1900
Wire Wire Line
	2250 1950 2250 1900
Connection ~ 2200 1950
Connection ~ 3000 1950
Wire Wire Line
	2200 1950 3000 1950
Wire Wire Line
	3000 1850 3000 2000
Wire Wire Line
	1950 2000 1950 1850
Wire Wire Line
	5050 4350 5050 4450
Wire Bus Line
	1700 1600 3000 1600
Wire Bus Line
	1700 1500 3000 1500
Wire Bus Line
	1700 1400 3000 1400
Wire Bus Line
	1700 1300 3000 1300
Wire Bus Line
	1700 1200 3000 1200
Wire Bus Line
	1700 1100 3000 1100
Wire Bus Line
	1700 1050 3000 1050
Wire Bus Line
	3000 1150 1700 1150
Wire Bus Line
	3000 1250 1700 1250
Wire Bus Line
	3000 1350 1700 1350
Wire Bus Line
	3000 1450 1700 1450
Wire Bus Line
	1700 1550 3000 1550
Wire Wire Line
	1700 1100 3000 1050
Wire Wire Line
	1700 1050 3000 1600
Wire Wire Line
	1700 1450 3000 1400
Wire Wire Line
	1700 1500 3000 1450
Wire Wire Line
	1700 1600 3000 1550
Wire Wire Line
	1700 1550 3000 1500
Wire Wire Line
	1700 1200 3000 1150
Wire Wire Line
	1700 1250 3000 1200
Wire Wire Line
	1700 1150 3000 1100
Wire Wire Line
	1700 1300 3000 1250
Wire Wire Line
	1700 1350 3000 1300
Wire Wire Line
	1700 1400 3000 1350
Wire Wire Line
	5050 4100 5050 4150
Wire Wire Line
	6050 4250 6100 4250
Wire Wire Line
	2200 1850 2200 2000
Wire Wire Line
	1950 1900 2000 1900
Connection ~ 1950 1900
Wire Wire Line
	2000 1900 2000 1950
Wire Wire Line
	2000 1950 2050 1950
Wire Wire Line
	2050 1950 2050 1900
Wire Wire Line
	2050 1900 2100 1900
Wire Wire Line
	2100 1900 2100 1950
Wire Wire Line
	2100 1950 2150 1950
Wire Wire Line
	2150 1950 2150 1900
Connection ~ 2200 1900
Wire Wire Line
	2150 1900 3000 1900
Connection ~ 3000 1900
Wire Wire Line
	2300 1900 2300 1950
Connection ~ 2300 1950
Connection ~ 2300 1900
Wire Wire Line
	2400 1900 2400 1950
Connection ~ 2400 1950
Connection ~ 2400 1900
Wire Wire Line
	2500 1900 2500 1950
Connection ~ 2500 1950
Connection ~ 2500 1900
Wire Wire Line
	2600 1900 2600 1950
Connection ~ 2600 1950
Connection ~ 2600 1900
Wire Wire Line
	2700 1900 2700 1950
Connection ~ 2700 1950
Connection ~ 2700 1900
Wire Wire Line
	2800 1900 2800 1950
Connection ~ 2800 1950
Connection ~ 2800 1900
Wire Wire Line
	2900 1900 2900 1950
Connection ~ 2900 1950
Connection ~ 2900 1900
Wire Wire Line
	1050 2950 1150 2950
Wire Wire Line
	1150 2950 1150 3050
Wire Wire Line
	1150 3050 1450 3050
Wire Wire Line
	1450 3050 1450 2950
Wire Wire Line
	1450 2950 1750 2950
Wire Wire Line
	1750 2600 2450 2600
Wire Wire Line
	1750 2900 2500 2900
Wire Wire Line
	2500 2900 2500 2800
Wire Wire Line
	2500 2800 2600 2800
Wire Wire Line
	2600 2800 2600 2700
Wire Wire Line
	2600 2700 2700 2700
Wire Wire Line
	2700 2700 2700 2600
Wire Wire Line
	2700 2600 2850 2600
Wire Wire Line
	2850 2600 2850 2900
Wire Wire Line
	2850 2900 2900 2900
Wire Wire Line
	2900 2900 2900 2950
Wire Wire Line
	2900 2950 3000 2950
Wire Wire Line
	3000 2950 3000 3050
Wire Wire Line
	3000 3050 3100 3050
Wire Wire Line
	1600 2900 1550 2900
Wire Wire Line
	1600 2900 1600 3000
Wire Wire Line
	1600 3000 1550 3000
Wire Wire Line
	1550 3000 1550 2900
Wire Notes Line
	1750 3300 1500 3300
Wire Notes Line
	1500 3300 1500 3000
Wire Notes Line
	1700 3000 1700 3100
Wire Notes Line
	1700 3100 1750 3100
Wire Notes Line
	3200 2950 3500 2950
Wire Notes Line
	3200 2600 3500 2600
Wire Notes Line
	1050 3400 1050 3900
Wire Notes Line
	3000 3400 3000 3950
Wire Wire Line
	1500 6650 2050 6650
Wire Wire Line
	6150 1150 6150 1100
Wire Wire Line
	6250 1700 6250 1650
Connection ~ 6250 1650
Wire Notes Line
	6300 2700 6350 2700
Wire Notes Line
	6350 2700 6350 2850
Wire Notes Line
	6350 2850 6300 2850
Wire Notes Line
	6350 2750 6600 2750
Wire Wire Line
	5550 5850 5550 5550
Wire Wire Line
	5150 6350 5550 6350
Wire Wire Line
	5550 6350 5550 6100
Wire Wire Line
	5550 6100 5700 6100
Wire Wire Line
	5700 6100 5700 6350
Wire Wire Line
	5700 6350 5850 6350
Wire Wire Line
	5850 6350 5850 6100
Wire Wire Line
	5850 6100 6150 6100
Wire Wire Line
	6150 6100 6150 6350
Wire Wire Line
	6150 6350 6300 6350
Wire Wire Line
	6300 6350 6300 6100
Wire Wire Line
	6300 6100 6450 6100
Wire Wire Line
	6450 6100 6450 6350
Wire Wire Line
	6450 6350 7000 6350
Wire Bus Line
	6000 5750 6000 6500
Wire Wire Line
	5550 5550 7000 5550
Text Notes 10100 2200 2    100  ~ 20
One Signal, Three Values?
Text Notes 8300 1700 0    60   ~ 0
Actually it's YUV or YIQ\nBut that's too complicated for this.
Text Notes 8350 1350 0    60   ~ 0
Hue = Think color of the rainbow)\nSaturation = How grey the color is\nValue = Brightness
Text Notes 9550 1200 2    60   ~ 0
Not RGB, but HSV (Sort of)
Text Notes 9650 950  2    100  ~ 20
What about Color?
Text Notes 6650 7100 2    100  ~ 20
Great for Text (Demo)\n(But not color)
Text Notes 6450 6600 0    60   ~ 0
Black\nBlanking
Text Notes 6100 6600 2    60   ~ 0
White
Text Notes 5350 6600 2    60   ~ 0
Sync
Text Notes 6350 5750 2    60   ~ 0
UNDRIVEN
Text Notes 6050 5350 2    100  ~ 20
SPI Basics
Text Notes 5450 4600 0    60   ~ 0
5V (Driven High)\n0V (Driven Low)\n- (Undriven)
Text Notes 6100 3800 2    100  ~ 20
AVR Ports
Text Notes 6900 2950 2    60   ~ 0
White
Text Notes 6950 2750 2    60   ~ 0
Black\nBlanking
Text Notes 6850 2500 2    60   ~ 0
Sync
Text Notes 5250 2500 0    60   ~ 0
N1 0  N2 0  = -38.6\nN1 0  N2 -  = -38.6\nN1 0  N2 5 = -34.5\nN1 -  N2 0 = -3.50\nN1 -  N2 -  = 3.33\nN1 -  N2 5  = 107.\nN1 5  N2 0  = 635.\nN1 5  N2 -  = 639.\nN1 5  N2 5  = 639.\n
$Comp
L R R4
U 1 1 5153CA38
P 6250 1950
F 0 "R4" V 6330 1950 50  0000 C CNN
F 1 "66" V 6250 1950 50  0000 C CNN
	1    6250 1950
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 5153CA2E
P 6150 1400
F 0 "R3" V 6230 1400 50  0000 C CNN
F 1 "1k" V 6150 1400 50  0000 C CNN
	1    6150 1400
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR?
U 1 1 5153CA1C
P 6150 1100
F 0 "#PWR?" H 6150 1190 20  0001 C CNN
F 1 "+5V" H 6150 1190 30  0000 C CNN
	1    6150 1100
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR?
U 1 1 5153CA10
P 6250 2300
F 0 "#PWR?" H 6250 2300 30  0001 C CNN
F 1 "GND" H 6250 2230 30  0001 C CNN
	1    6250 2300
	1    0    0    -1  
$EndComp
Text Notes 6450 900  2    100  ~ 20
A Better Network
$Comp
L R R5
U 1 1 5153C9C9
P 5850 1550
F 0 "R5" V 5930 1550 50  0000 C CNN
F 1 "1" V 5850 1550 50  0000 C CNN
	1    5850 1550
	0    1    1    0   
$EndComp
$Comp
L R R6
U 1 1 5153C9C8
P 5850 1800
F 0 "R6" V 5930 1800 50  0000 C CNN
F 1 "330" V 5850 1800 50  0000 C CNN
	1    5850 1800
	0    1    1    0   
$EndComp
Text GLabel 5050 1550 0    60   Input ~ 0
V1
Text GLabel 5050 1800 0    60   Input ~ 0
V2
Text GLabel 6300 1650 2    60   Input ~ 0
VOut
Text Notes 2800 5850 2    100  ~ 20
Resistor Dividers
Text Notes 2650 4350 2    100  ~ 20
Frame (cont'd)
Text Notes 2850 950  2    100  ~ 20
NTSC Frame
Text Notes 8350 2550 0    60   ~ 0
Hue = Phase of chroma signal
Text Notes 1500 6900 0    60   ~ 0
V1=0V, V2=0V -> VOut=0V\nV1=5V, V2=0V->VOut=3.3V\nV1=0V, V2=5V->VOut=1.6V\nV1=5V, V2=5V -> VOut=5V
Text GLabel 2750 6500 2    60   Input ~ 0
VOut
Text GLabel 1500 6650 0    60   Input ~ 0
V2
Text GLabel 1500 6400 0    60   Input ~ 0
V1
$Comp
L R R2
U 1 1 5153C2F0
P 2300 6650
F 0 "R2" V 2380 6650 50  0000 C CNN
F 1 "200" V 2300 6650 50  0000 C CNN
	1    2300 6650
	0    1    1    0   
$EndComp
$Comp
L R R1
U 1 1 5153C2DB
P 2300 6400
F 0 "R1" V 2380 6400 50  0000 C CNN
F 1 "100" V 2300 6400 50  0000 C CNN
	1    2300 6400
	0    1    1    0   
$EndComp
Text Notes 1200 6050 0    60   ~ 0
We're digital (0, 5V) How do we get analog?
Text Notes 8350 2650 0    60   ~ 0
Saturation = Intensity of chroma signal
Text Notes 8350 2450 0    60   ~ 0
Value = Voltage on line.
Text Notes 1400 4550 0    60   ~ 0
242 lines per frame (at 59.97Hz)\n20 lines worth of HSync
Text Notes 1200 4950 0    60   ~ 0
480P? Interlacing!  We're not covering it.
Text Notes 1350 3800 0    60   ~ 0
One Line of Video (63.55 us)
Text Notes 3600 2600 0    60   ~ 0
100 IRE White
Text Notes 3600 2900 0    60   ~ 0
7.5 IRE Black
Text Notes 3650 3000 0    60   ~ 0
0 IRE Blanking
Text Notes 3550 3100 0    60   ~ 0
-40 IRE Sync
Text Notes 550  3300 0    60   ~ 0
Front Porch (1.5us)
Text Notes 1800 3150 0    60   ~ 0
Back Porch (1.6us)\nColorburst (2.5us)\nBreezeway (.6us)\n
Text Notes 950  2650 0    60   ~ 0
Sync Pulse 4.7us
Text Notes 1800 2800 0    60   ~ 0
Picture Data
Text Notes 3100 2450 2    100  ~ 20
A Specific Line
Text Notes 2750 1800 2    60   ~ 0
Lines
Text Notes 2250 1800 2    60   ~ 0
H Sync
Text GLabel 6100 4250 2    60   Input ~ 0
AVR I/O Port
$Comp
L GND #PWR?
U 1 1 5153BD4A
P 5050 4450
F 0 "#PWR?" H 5050 4450 30  0001 C CNN
F 1 "GND" H 5050 4380 30  0001 C CNN
	1    5050 4450
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR?
U 1 1 5153BD3B
P 5050 4100
F 0 "#PWR?" H 5050 4190 20  0001 C CNN
F 1 "+5V" H 5050 4190 30  0000 C CNN
	1    5050 4100
	1    0    0    -1  
$EndComp
$Comp
L SWITCH_INV_MSM SW?
U 1 1 5153BD1C
P 5550 4250
F 0 "SW?" H 5351 4400 50  0000 C CNN
F 1 "3-State" H 5401 4101 50  0000 C CNN
	1    5550 4250
	-1   0    0    1   
$EndComp
Text GLabel 5100 5550 0    60   Input ~ 0
AVR MISO
Text GLabel 5100 6150 0    60   Input ~ 0
AVR MOSI
$EndSCHEMATC