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NT6828 PDF даташит

Спецификация NT6828 изготовлена ​​​​«ETC» и имеет функцию, называемую «I2C Bus Controlled On-Screen Display».

Детали детали

Номер произв NT6828
Описание I2C Bus Controlled On-Screen Display
Производители ETC
логотип ETC логотип 

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NT6828 Даташит, Описание, Даташиты
NT6828
I2C Bus Controlled On-Screen Display
Features
T I2C Bus Interface with Slave Address $7A (Receiver
Only)
T Horizontal Frequency Range: 30KHz ~ 120KHz
T Flexible Display Resolution: up to 1524 dots per row
T Internal PLL Generating a Stable and Wide-Ranged
System Clock (92.2 MHz)
T OSD Screen Comprising of Character Arrays of 15
Rows by 30 Columns
T 12 X 18 Dot Matrix Per Character
T Total of 256 Fonts Including 248 ROM Fonts and 8
RAM Fonts
T Programmable Vertical and Horizontal Position
Adjustment for OSD Display Position
General Description
NT6828 is designed for displaying symbols and
characters onto a CRT monitor. Its operation is controlled
by the micro-controller with I2C bus interface. By sending
the proper data and commands to NT6828, it can carry
out the full screen display automatically while the time
base is generated by the on-chip PLL circuit. There are
many functions provided on this chip to fully support
numerous user applications. These functions are:
adjustment of OSD windows position, built-in ROM &
T 8-Color Selection for Each Character and 8-Color
Control on Each Row with Overlapped by Windows
T Character Blinking, Shadowing & Bordering Display
Effects
T Double Character Height and Width for Each Row
T Programmable Height of Characters Display
T Row To Row Spacing Control
T Four Overlapping and Programmable Windows with 8-
Color Control
T Hsync & Vsync Input Polarity Selectable
T 8 Channels PWM DAC with 8 bits resolution & Open-
Drain Output Structure
T 16 DIP and 24 Skinny DIP packages
RAM fonts, variable character height with row-to-row
spacing adjustment, 8 color selections for each character,
double height/width controls for each row, four available
overlapping windows with color & size controls, as well as
other I/O interfaces to compliment an external video
chipset.
NT6828 provides eight optional PWM channels with 8-bit
resolution for external digital to analog control.
Pin Configurations
AGND
VCO
RP
AVCC
HFLB
N.C.
SDA
SCL
16 DIP
1 16
2 15
3 14
4 13
5 12
6 11
7 10
89
DGND
R
G
B
FBKG
PWM/HFTON
VFLB
DVCC
AGND
VCO
RP
AV DD
HFLB
N.C.
SDA
SCL
PWM0
PWM1
PWM2
PWM3
24 Skinny DIP
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
DGND
R
G
B
FBKG
PWM/HFTON
VFLB
DVCC
PWM7
PWM6
PWM5
PWM4
1 V2.1









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NT6828 Даташит, Описание, Даташиты
Block Diagram
SCL
SDA
VFLB
HFLB
RP
VCO
I2C
BUS
RECEIVER
VPOL
VSYNC
HSYNC
HPOL
BUS CONTROL
BUFFER
VERTICAL
CONTROL
PLL
CIRCUIT
TIMING
GENERATOR
TEST
CIRCUIT
HORIZONTAL
CONTROL
NT6828
ROM/RAM
FONT 12 * 18
DISPLAY
EFFECT
DISPLAY
MEMORY
CONTOL
REG.
POWER ON
LOW VOLTAGE
RESET
POWER
SYSTEM
OUTPUT
CONTROL
COLOR
CONTROL
PWM
Channel
R/G/B
FBKG
PWM /
HFTON
PWM0-7
2









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NT6828 Даташит, Описание, Даташиты
Pin Description
Pin No.
16 Pin 24 Pin
11
22
33
44
55
66
77
88
9
10
11
12
12
14
15
16
9 17
10 18
11 19
12 20
13 21
14 22
15 23
16 24
Designation
AGND
VCO
RP
AVCC
HFLB
N.C.
SDA
SCL
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
DVCC
VFLB
PWM/
HFTON
FBKG
B
G
R
DGND
NT6828
I/O/P/R
Description
P Analog Ground
- Voltage I/P to Control Oscillator
- Bias Resistor. (To be used as a bias internal VCO to
resonate at the specific range of pixel clock)
P Analog Power Supply (5V Typ.)
I Horizontal Fly-back Input (Schmitt Trigger Buffer)
--
I SDA Pin Of I2C Bus (Schmitt Trigger Buffer) with internal
100K ohm pulled-high resistance
I SCL Pin Of I2C Bus (Schmitt Trigger Buffer) with internal
100K ohm pulled-high resistance
O 5V PWM Channel 0. Open-drain output structure
O 5V PWM Channel 1. Open-drain output structure
O 5V PWM Channel 2. Open-drain output structure
O 5V PWM Channel 3. Open-drain output structure
O 5V PWM Channel 4. Open-drain output structure
O 5V PWM Channel 5. Open-drain output structure
O 5V PWM Channel 6. Open-drain output structure
O 5V PWM Channel 7. Open-drain output structure
P Digital Power Supply (5V Typ.)
I Vertical Fly-back Input (Schmitt Trigger Buffer)
O PWM output or gain controlled of R,G,B channels.
O Fast Blanking Output. (To be used as switching signal for the
R,G,B OSD video signals.)
O Blue Color Output with Push-Pull Output Structure
O Green Color Output with Push-Pull Output Structure
O Red Color Output with Push-Pull Output Structure
P Digital Ground
3










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