Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.
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
1M
9
9
LVDS
HD
HD DF
fHD
fHD DF
PNX8541
Display
Supply
Lamp On
Converter
PWM Dimming
2x DDR
Analog /PWM
Dimming
MIPS
StdBy
PWM Boost
Converter
Analog Boost
YUV
10b
LVDS
10b
1G
51
LV
D
S
51p
1G
50 LV
D
S
41p
Analog /PWM Dimming
Analog /PWM Display
I_17670_00
8
.ep
s
2
8
040
8