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參數(shù)資料
| 型號： | MN89201 |
| 廠商： | PANASONIC CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | VGA-NTSC Scan Converter |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP128 |
| 封裝： | 18 X 18 MM, PLASTIC, QFH-128 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 64K |
| 代理商： | MN89201 |
For Information Equipment
MN89201
VGA-NTSC Scan Converter
Overview
The MN89201 converts PC/AT VGA (640
×
480) display
data into an NTSC video signal without requiring an external
frame memory. It uses filtering to eliminate flicker and
produce a high-quality television image.
Note: PC/AT and VGA are registered trademarks of International
Business Machines Corporation.
Features
Conversion of PC/AT VGA (640
×
480) display data
into NTSC video signal
8-bit inputs for VGA R, G, and B signals
Horizontal frequency: 31.5 kHz
Vertical frequency:
59.94 Hz
Conversion of non-interlaced display to interlaced
display
Built-in phase-locked loop for synchronizing VGA
and NTSC data clocks
Conversion from RGB to YCrCb (4:2:2) format
Data output in NTSC display format (YCrCb24 or
YCrCb16-bit)
Flicker prevention
Choice of line filters with 3 taps for preventing
flicker
Processing with only line memory
No need for external VRAM
All processing completes within built-in line memory
Choice of readout clocks for NTSC output
Choice 1: Choice of clock that has arbitrary
frequency and synchronizes with
VGA clock
External voltage-controlled
oscillator in addition to built-in
phase-locked loop
Choice 2: Choice of clock that has arbitrary
frequency and does not synchronize
with VGA clock
External oscillator
Choice 3: Clock with half frequency of the
VGA-dot-clock
Choose the clock matching the NTSC encoder.
The MN89201 offers high-quality NTSC-compatible
output from a compact configuration.
Applications
Point-of-sale terminals, Factory automation terminals,
word processors, and other terminals
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