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Circuit Descriptions and List of Abbreviations
EN 75DVD763SA 9.
9.6 Abbreviation list
ADC Analogue to Digital Converter
AGC Automatic Gain Control
ASD Architecture and Standard Design
AM Amplitude Modulation
BE Basic Engine
ComPair Computer aided rePair
CD-DA CD Digital Audio
CS Chip Select
CVBS Composite Video Blanking and
Synchronisation
DAC Digital to Analogue Converter
DAIO Digital Audio Input Output
DEMUX De-multiplexer
DENC Digital Encoder
DFU Direction For Use: description for the
end user
DNR Dynamic Noise Reduction
DRAM Dynamic Random Access Memory
DSD Direct Stream Digital
DSP Digital Signal Processing
DST Direct Stream Transfer (= loss less
compressed DSD signal)
DTS Digital Theatre Sound
DVD Digital Versatile Disc
EEPROM Electrically Erasable and
Programmable Read Only Memory
EFM Eight to Fourteen bit Modulation
EMI External Memory Interface (STi55xx)
FFC Flat Foil Cable
FLASH Flash memory
HPF High Pass Filter
HW Hardware
I2C Integrated IC bus (signals at 5V level)
I2S Integrated IC Sound bus (signals at
3.3V level)
IC Integrated Circuit
IF Intermediate Frequency
IRQ Interrupt Request
KOK Karaoke
LFE Low Frequency Effect (= subwoofer)
LLD Loss Less Decoder
LPCM Linear Pulse Code Modulation
LRCLK Left/Right clock
LVTTL Low Voltage Transistor Transistor
Logic (3.3V logic)
M2 Mercury 2 Basic Engine
MACE Mini All Compact Disc Engine
MPEG Motion Pictures Experts Group
NC Not Connected
NVM Non Volatile Memory (= IC containing
TV related data e.g. alignments)
OC Open Circuit
OPU Optical Pick-up Unit
PCB Printed Circuit Board (see PWB)
PCM Pulse Code Modulation
PCM_CLK Audio system clock for DAC
PCM_OUTx Audio serial output data
PSP Pit Signal Processing
PSU Power Supply Unit
PWB Printed Wiring Board (see PCB)
RAM Random Access Memory
RGB Red, Green and Blue colour space
ROM Read Only Memory
S2B Serial to Basic Engine (=
communication bus between host-
and servo processor)
SCL Serial Clock I2C
SCLK Audio serial bit clock
SDA Serial Data I2C
SDRAM Synchronous DRAM
SMI Shared Memory Interface
S/PDIF Sony Philips Digital InterFace
SRAM Static RAM
STBY Standby
SVCD Super Video CD
SW Software
THD Total Harmonic Distortion
TTL Transistor Transistor Logic (5V logic)
uP Microprocessor
VAL Video Audio Loader
VCD Video CD
Y/C Luminance (Y) and Chrominance (C)
signal
YUV Component video