Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 130 Q529.1A LA9.
Figure 9-9 PNX5100 Detailed Video Block diagram
9.6.1 PNX5100
The PNX5100 performs the following tasks:
• Picture quality improvement (Natural Motion, etc.).
• Video and graphics (On Screen Display) mixing.
• Up conversion from 50/60 to 100/120 Hz.
• Colour processing
• Sharpness processing
• Backlight control
• AmbiLight pre processing
• Switching On and Off of the display
• Pattern generator
The PNX5100 interfaces:
• Video input (CMOS).
• Graphics input (PCI).
•I
2
C.
• Field memory (2 × DDR).
• Video output: LVDS (single, dual or quad) to display
• Backlight control: PWM for dimming and boost
• AmbiLight: CMOS sequential RGB to FPGA
•GPIO
Refer to figure “9-9 PNX5100 Detailed Video Block diagram”
for details.
9.7 Abbreviation List
0/6/12 SCART switch control signal on A/V
board. 0 = loop through (AUX to TV),
6 = play 16 : 9 format, 12 = play 4 : 3
format
2DNR Spatial (2D) Noise Reduction
3DNR Temporal (3D) Noise Reduction
AARA Automatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to
remove horizontal black bars; keeps
the original aspect ratio
ACI Automatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
ADC Analogue to Digital Converter
AFC Automatic Frequency Control: control
signal used to tune to the correct
frequency
AGC Automatic Gain Control: algorithm that
controls the video input of the feature
box
AM Amplitude Modulation
ANR Automatic Noise Reduction: one of the
algorithms of Auto TV
AP Asia Pacific
AR Aspect Ratio: 4 : 3 or 16 : 9
ASF Auto Screen Fit: algorithm that adapts
aspect ratio to remove horizontal black
bars without discarding video
information
ATSC Advanced Television Systems
Committee, the digital TV standard in
the USA
ATV See Auto TV
Auto TV A hardware and software control
system that measures picture content,
and adapts image parameters in a
dynamic way
AV External Audio Video
AVC Audio Video Controller
PNX5100
1M99
LVDS
HD
HD DF
fHD
fHD DF
PNX8541
Display
Supply
Lamp On
Conver ter
PWM Dimming
2x DDR
Analog /PW M
Dimming
MIPS StdBy
PWM Boost
Converter
Analog Boost
YUV10b
LVDS
10b
1G51 LVDS 51p 1G50 LVDS 41p
Analog /PW M D imm ing
Analog /PW M Display
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