- FOCUS PC To TV Video Scan Converter Data Sheet Guides

FS453/4 AND FS455/6 DATA SHEET: HARDWARE REFERENCE
JANUARY, 2005, VERSION 3.0 5 COPYRIGHT ©2003-4 FOCUS ENHANCEMENTS, INC.
FOCUS Enhancements Semiconductor
2. Architectural Overview
The FS453 has the following major sections:
• Inputs P[23:0]
• Programmable Color Space Converter
• Patented 2D (Horizontal and Vertical)
Scaling
• Patented 2D Flicker Filter
• FIFO
• Post (Horizontal Up) Scaler
• Inverse Color Space
• Broadcast Quality Encoder
• HDTV Bi- & Tri-Level Sync Insertion
• Configurable 10 bit DACs
• Clock Management
• Oscillators and PLL
• Serial Control Interface
• Sync Timing Generator
P[23:0]
Demu
x
Encode
r
Inverse
Color
Space
10-bit
10-bit
10-bit
DAC
A
Multiplexe
r
Sync
Timing
Generator
VSync
HSync
Blank
Field
Color
Space
Conv.
2D
Scaler
FIFO
DAC B
DAC C
10-bit
DAC D
Bi & Tri-Level
Sync
Insertion
XTAL
OSC
PLLCrystal
ClkOut
Clock Management
ClkIn
2D
Flicker
Filter
Multiplexe
r
to internal clocks
Post
Scaler
NCO
Serial
Control
Interface
SDATA
SCLK
Figure 1: FS453 Functional Block Diagram
2.1 Inputs
The FS453 accepts computer graphics images in many different resolutions and pixel frequencies on
P[23:0]. The FS453 adaptively process this information for optimal display on SDTV and HDTV television
sets.