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參數(shù)資料
| 型號： | FS451AC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | i-Net TV Interface Video Processor |
| 中文描述： | 一至網絡電視接口視頻處理器 |
| 文件頁數(shù)： | 1/60頁 |
| 文件大小： | 266K |
| 代理商： | FS451AC |
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JUNE, 2000, VERSION 1.2
1
COPYRIGHT
ó
1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORMATION
FS450, FS451
i-Net TV Interface
Video Processor
Features
Flexible clock, data, and electrical interfaces
allows glue-less digital interface to Intel
82810, National Geode and most other
graphic controller chips ("GCC")
Capable of operating as clock master,
pseudo-master, and slave and supports both
single and differential master clocks
Programmable 2D scaling
–
Variable horizontal up and down scale
–
Variable vertical downscale
–
Output format can be tuned to the exact
dimensions of the TV
Advanced 2-D flicker filter
Supports Multiple Progressive Input
Resolutions
–
640x480 to 1024x768
Multiple Output Standards
–
NTSC, NTSC-EIAJ, PAL-B/D/G/H/I/M/N
–
Composite, S-Video, RGB SCART
–
Composite Y-Notch and C-Bandpass
Filters
Genlock the GCC and incoming Video
–
Provides the pixel clock to the GCC
generated from a single 27MHz clock
–
Provides frame synchronization output
signal for other video components
CCIR 656 outputs
CCIR 656 input to the encoder
10-bit output D/A converters
Macrovision 7 compliant (FS451 only)
I
2
C
compatible port controls
High level programming interface
100 pin PQFP package
3.3V operation
Note: Covered under US Patent # 5,862,268 and/or
patents pending.
Note: I
2
C is a registered trademark of Philips Corporation.
The FS450 SIO bus is similar but not identical to Philips I
2
C
bus.
Description
The i-Net TV FS450 is a fourth generation video
scan converter. It accepts many input
resolutions, rates and formats and converts them
to NTSC or PAL standards compliant with
SMPTE-170M and CCIR-656 standards. The chip
has a programmable down scaler to fit the
incoming resolution to the output display format.
The CCIR 656 ports allow external interface to
other video chips. The sync control block
generates frame reset for genlocking other video
components. Required external components are
minimal: a single 27 MHz oscillator or crystal
and passive parts.
Digital progressive RGB inputs are downscaled or
upscaled to the CCIR-656 horizontal pixel count
and converted to the 656 format. Vertical scaling
and flicker filtering are done in 656 format.
The Flicker Filter is an advanced 2 dimensional
filter that enhances text quality. Flicker Filter and
Sharpness parameters are programmable.
A digital video encoder that generates analog Y/C
and Composite Video outputs is part of the
FS450. For the composite output in NTSC, Y-
Notch and C-Bandpass filters are available. For
RGB and YUV outputs, the encoder may be
bypassed via a YUV to RGB transcoder for
SCART compatible video.
Scaling and clock parameters are automatically
programmed by the driver, so the system remains
genlocked with resolution changes. The input
parameters to the automatic scaling are TV
viewable area, PAL or NTSC, and the GCC CRT
Control Registers’ settings.
The FS451's encoder incorporates Macrovision 7
anti-copy protection technology.
All parameters can be read and written via the I
2
C
compatible serial port.
Power is derived from +3.3V digital and analog
supplies. The package is 100-lead Quad Flat
Pack (PQFP).
Applications
Internet Set Top Boxes
PC video out (TV Ready PCs)
Cable/DVD Player Set Top Boxes
Web Appliances
Information Appliances
Video Kiosks
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