UPD64084 NEC, UPD64084 Datasheet - Page 6

• Manufacturer Part Number: UPD64084
• Description: THREE-DIMENSIONAL Y/C SEPARATION LSI WITH ON-CHIP MEMORY
• Manufacturer: NEC

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4.
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6.
7.
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PIN FUNCTIONS .....................................................................................................................................................9
SYSTEM OVERVIEW ............................................................................................................................................11
VIDEO SIGNAL INPUT BLOCK ............................................................................................................................14
CLOCK/TIMING GENERATION BLOCK...............................................................................................................17
COMB FILTER BLOCK .........................................................................................................................................19
MOTION DETECTION BLOCK..............................................................................................................................20
YNR/CNR BLOCK .................................................................................................................................................21
1.1 Pin Functions ..................................................................................................................................................9
2.1 Operation Modes ..........................................................................................................................................11
2.2 Filter Processing ...........................................................................................................................................12
2.3 System Delay ................................................................................................................................................12
2.4 Start-up of Power Supply and Reset.............................................................................................................13
3.1 Video Signal Inputs .......................................................................................................................................14
3.2 Pedestal Level Reproduction ........................................................................................................................14
3.3 Video Signal Input Level ...............................................................................................................................15
3.4 Pin Treatment................................................................................................................................................15
3.5 External ADC Connection Method ................................................................................................................16
4.1 Sync Separator and Timing Generator .........................................................................................................17
4.2 Composite Sync Signal Input........................................................................................................................17
4.3 Horizontal/Burst Phase Detection Circuit......................................................................................................17
4.4 PLL Filter Circuit ...........................................................................................................................................17
4.5 Killer Detection Circuit...................................................................................................................................17
4.6 f
4.7 8f
4.8 Pin Treatment................................................................................................................................................18
5.1 Line Comb Filter............................................................................................................................................19
5.2 Frame Comb Filter ........................................................................................................................................19
5.3 Mixer Circuit ..................................................................................................................................................19
5.4 C Signal Subtraction .....................................................................................................................................19
6.1 Line Comb Filter............................................................................................................................................20
6.2 DY Detection Circuit ......................................................................................................................................20
6.3 DC Detection Circuit .....................................................................................................................................20
6.4 Motion Factor Generation Circuit ..................................................................................................................20
6.5 Forcible Control for The Motion Factor..........................................................................................................20
7.1 YNR/CNR Processing...................................................................................................................................21
7.2 Nonlinear Filter..............................................................................................................................................21
7.3 YNR/CNR Operation Stop.............................................................................................................................21
SC
SC
Generator.................................................................................................................................................18
-PLL Circuit.............................................................................................................................................18
Data Sheet S16021EJ2V0DS
CONTENTS
PD64084