Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 80 LC7.1E LA9.
Figure 9-12 HDMI implementation
HDMI connectors 1 and 2 are connected to resp. ports 1 and 2
of the HDMI receiver. The ports cannot be activated at the
same moment. Switching is controlled by software.
“Hot Plug Reset” and “DDC Reset” are controlled by the
microprocessor.
The HDMI receiver will convert all RGB or YCbCr 4:2:2 signals
to 24-bit YCbCr 4:4:4. When it receives a YCbCr 4:4:4 signal it
will just pass the signal directly to the Trident Video Processor.
9.9 Abbreviation List
1080i 1080 visible lines, interlaced
1080p 1080 visible lines, progressive scan
2CS 2 Carrier Sound
2DNR Spatial (2D) Noise Reduction
3DNR Temporal (3D) Noise Reduction
480i 480 visible lines, interlaced
480p 480 visible lines, progressive scan
AARA Automatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up 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
AUO Acer Unipack Optronics
AP Asia Pacific
AR Aspect Ratio: 4 by 3 or 16 by 9
ASD Automatic Standard Detection
AV Audio Video
B/G Monochrome TV system. Sound
carrier distance is 5.5 MHz
BTSC Broadcast Television System
Committee
CAM Conditional Access Module
CBA Circuit Board Assembly (or PWB)
CEC Consumer Electronics Control bus;
remote control bus on HDMI
connections
CI Common Interface; E.g PCMCIA slot
for a CAM in a set top box
CL Constant Level: audio output to
connect with an external amplifier
CLUT Colour Look Up Table
ComPair Computer aided rePair
COFDM Coded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
CSM Customer Service Mode
CVBS Composite Video Blanking and
Synchronisation
CVBS-MON CVBS monitor signal
CVBS-TER-OUT CVBS terrestrial out
CVI Component Video Input
DAC Digital to analogue Converter
DBE Dynamic Bass Enhancement: extra
low frequency amplification
DDC Display Data Channel; is a part of the
"Plug and Play" feature
DFU Directions For Use: owner's manual
DNR Dynamic Noise Reduction
DRAM Dynamic RAM
DSP Digital Signal Processing
DST Dealer Service Tool: special
(European) remote control designed
for service technicians
DTS Digital Theatre Sound
DVB(T) Digital Video Broadcast; An MPEG2
based standard for transmitting digital
audio and video. T= Terrestrial
DVD Digital Versatile Disc
DVI Digital Visual Interface
DW Double Window
HDMI 2
HDMI 1
HDMI
Receiver
Sil9025
EDID
EDID
Hot plug
Reset
Trident
CX32
H and V Sync
24 bits YCbCr 4:4:4
I2S DAC
I
2
S
HDMI_Audio LR
Audio Processor
Micronas MSP4450P
COMP_AUDIO LR
for DVI audio input
only
Microprocessor
HDMI_HOTPLUG_RESET
DDC Reset
DDC_RESET
Data Enable
HDMI CLK
RST
I
2
C
(Port 2)
(Port 1)
G_16860_078.eps
010207
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