Abbreviation List - Philips LC7.2E Service Manual

Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.9 HDMI
9.9.1 Introduction
Note: Text below is an excerpt from the "HDMI Specification"
that is issued by the HDMI founders (see http://www.hdmi.org).
The High-Definition Multimedia Interface is developed for
transmitting digital signals from audiovisual sources to
television sets, projectors and other video displays.
HDMI can carry high quality multi-channel audio data and can
carry all standard and high-definition consumer electronics
video formats. Content protection technology is available.
HDMI can also carry control and status information in both
directions.
HDMI is backward compatible with DVI (1.0). Compared with
DVI, HDMI offers extra:
• YUV 4:4:4 (3 x 8-bit) or 4:2:2 (up to 2 x 12-bit), where DVI
offers only RGB 4:4:4 (3 x 8 bit).
• Digital audio in CD quality (16-bit, 32/44.1/48 kHz), higher
quality available (8 channels, 192 kHz).
• Remote control via CEC bus (Consumer Electronics
Control): allows user to control all HDMI devices with the
TV's remote control and menus.
• Smaller connector (SCART successor).
• Less cables: e.g. from 10 audio/9 video cables to 3 HDMI
cables.
9.9.2 Implementation
The IC used is the Sil 9025 (Silicon Image) third generation
HDMI receiver (item 7817 on the SSB) with following features:
• Dual HDMI input connector.
• Two EEPROMS to support EDID.
• HDMI audio.
2
• I S output to DACs which operating freq. of 32 to 192 kHz.
• Integrated HDCP decryption engine.
• Built-in pre-programmed HDCP keys for copy protection.
• Colour space conversion RGB to YCbCr.
• "Hot Plug Reset" signal.
HDMI 1
DDC Reset
(Port 1)
HDMI
EDID
Receiver
Sil9025
(Port 2)
HDMI 2
EDID
COMP_AUDIO LR
for DVI audio input
only
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.
Hot plug
HDMI_HOTPLUG_RESE T
Reset
DDC_RESET
Microprocessor
RST
I 2 C
Data Enable
Trident
HDMI CLK
24 bits YCbCr 4:4:4
CX32
H and V Sync
I 2 S
HDMI_Audio LR
I2S DAC
Audio Processor
Micronas MSP4450P
G_16860_078.eps

9.10 Abbreviation List

1080i
1080p
2CS
2DNR
3DNR
480i
480p
AARA
ACI
ADC
AFC
AGC
AM
AUO
AP
AR
ASD
AV
B/G
BTSC
CAM
CBA
CEC
CI
CL
CLUT
ComPair
COFDM
CSM
CVBS
CVBS-MON
CVBS-TER-OUT
CVI
DAC
DBE
DDC
DFU
010207
DNR
DRAM
DSP
DST
DTS
DVB(T)
DVD
DVI
DW
LC7.2E PA 9.
1080 visible lines, interlaced
1080 visible lines, progressive scan
2 Carrier Sound
Spatial (2D) Noise Reduction
Temporal (3D) Noise Reduction
480 visible lines, interlaced
480 visible lines, progressive scan
Automatic Aspect Ratio Adaptation:
algorithm that adapts aspect ratio to
remove horizontal black bars; keeping
up the original aspect ratio
Automatic Channel Installation:
algorithm that installs TV channels
directly from a cable network by
means of a predefined TXT page
analogue to Digital Converter
Automatic Frequency Control: control
signal used to tune to the correct
frequency
Automatic Gain Control: algorithm that
controls the video input of the feature
box
Amplitude Modulation
Acer Unipack Optronics
Asia Pacific
Aspect Ratio: 4 by 3 or 16 by 9
Automatic Standard Detection
Audio Video
Monochrome TV system. Sound
carrier distance is 5.5 MHz
Broadcast Television System
Committee
Conditional Access Module
Circuit Board Assembly (or PWB)
Consumer Electronics Control bus;
remote control bus on HDMI
connections
Common Interface; E.g PCMCIA slot
for a CAM in a set top box
Constant Level: audio output to
connect with an external amplifier
Colour Look Up Table
Computer aided rePair
Coded Orthogonal Frequency Division
Multiplexing; A multiplexing technique
that distributes the data to be
transmitted over many carriers
Customer Service Mode
Composite Video Blanking and
Synchronisation
CVBS monitor signal
CVBS terrestrial out
Component Video Input
Digital to analogue Converter
Dynamic Bass Enhancement: extra
low frequency amplification
Display Data Channel; is a part of the
"Plug and Play" feature
Directions For Use: owner's manual
Dynamic Noise Reduction
Dynamic RAM
Digital Signal Processing
Dealer Service Tool: special
(European) remote control designed
for service technicians
Digital Theatre Sound
Digital Video Broadcast; An MPEG2
based standard for transmitting digital
audio and video. T= Terrestrial
Digital Versatile Disc
Digital Visual Interface
Double Window
EN 75