1. INTRODUCTION ________________________________________________4
2. SMALL SIGNAL PART WITH TDA8885 _____________________________4
2.1.
Vision IF amplifier _________________________________________________ 4
2.2.
Video Switches _____________________________________________________ 5
2.3.
Sound Circuit______________________________________________________ 5
2.4.
Synchronisation circuit ______________________________________________ 5
2.5.
Chroma and Luminance processing ___________________________________ 6
2.6.
Colour Decoder ____________________________________________________ 6
2.7.
PICTURE IMPROVEMENT FEATURES______________________________ 7
2.8.
RGB output circuit and black-current stabilisation_______________________ 7
2.9.
EAST – WEST OUTPUT STAGE_____________________________________ 8
3. TUNER _________________________________________________________8
4. VIDEO SWITCH TEA6415C _______________________________________9
5. MULTI STANDARD SOUND PROCESSOR___________________________9
6. SOUND OUTPUT STAGE WITH TDA 7265___________________________9
7. VERTICAL OUTPUT STAGE WITH STV 9379 _______________________10
8. VIDEO OUTPUT AMPLIFIER TDA6108 ____________________________10
9. COMBFILTER TDA 9181_________________________________________10
10.
POWER SUPPLY (SMPS) _______________________________________10
11.
POWER FACTOR CORRECTION ________________________________10
12.
MICROCONTROLLER SDA555X ________________________________10
12.1.
General Features ________________________________________________ 10
12.2.
External Crystal and Programmable clock speed______________________ 10
12.3.
Microcontroller Features _________________________________________ 10
12.4.
Memory _______________________________________________________ 11
12.5.
Display Features ________________________________________________ 11
12.6.
ROM Characters ________________________________________________ 11
12.7.
Acquisition Features _____________________________________________ 11
12.8.
Ports __________________________________________________________ 11
13.
SERIAL ACCESS CMOS 8K (1024*8) EEPROM ST24C08 ____________12
14.
CLASS AB STEREO HEADPHONE DRIVER TDA1308 ______________12
15.
SAW FILTERS ________________________________________________12
16.
IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM____________12
16.1.
TDA8885: ______________________________________________________ 12
16.1.1.
GENERAL DESCRIPTION _____________________________________________12
16.1.2.
FEATURES__________________________________________________________12
16.1.3.
Pin Description _______________________________________________________13
