TW2864D datasheet(4/110 Pages) RENESAS

4 / 110 page

TW2864

FN7745 Rev. 0.00

Page 4 of 110

September 28, 2012

Table of Contents

Pin Configuration ............................................................................................................................................................................... 7

Pin Descriptions ................................................................................................................................................................................. 7

Analog Video/Audio Interface Pins............................................................................................................................................. 7

Digital Video/Audio Interface Pins ............................................................................................................................................. 8

System Control Pins ...................................................................................................................................................................... 9

Power and Ground Pins ................................................................................................................................................................ 9

Functional Description ....................................................................................................................................................................10

Video Input Formats....................................................................................................................................................................10

Analog Front-end .........................................................................................................................................................................11

Decimation Filter __________________________________________________________________________________ 12

Automatic Gain Control and Clamping ....................................................................................................................................13

Sync Processing ...........................................................................................................................................................................13

Y/C Separation.............................................................................................................................................................................14

Color Decoding.............................................................................................................................................................................16

Chrominance Demodulation _________________________________________________________________________ 16

ACC (Automatic Color gain control) ___________________________________________________________________ 17

Chrominance Processing............................................................................................................................................................17

Chrominance Gain, Offset and Hue Adjustment _________________________________________________________ 17

CTI (Color Transient Improvement) ____________________________________________________________________ 17

Luminance Processing................................................................................................................................................................18

Video Cropping .............................................................................................................................................................................19

Video Scaler.................................................................................................................................................................................20

Output Format..............................................................................................................................................................................23

ITU-R BT.656 Format _______________________________________________________________________________ 23

Two Channel ITU-R BT.656 Time-multiplexed Format with 54MHz __________________________________________ 24

Four Channel CIF Time-multiplexed Format with 54MHz __________________________________________________ 24

Four Channel D1 Time-division-multiplexed Format with 108MHz __________________________________________ 26

Output Enabling Act ________________________________________________________________________________ 27

Video Output Channel Selection ______________________________________________________________________ 27

Extra Sync Output __________________________________________________________________________________ 27

Audio Codec ______________________________________________________________________________________ 30

Audio Clock Master/Slave mode _____________________________________________________________________ 30

Audio Detection ___________________________________________________________________________________ 31

Multi-Chip Operation _______________________________________________________________________________ 31

Serial Audio Interface ______________________________________________________________________________ 41

Playback Input ____________________________________________________________________________________ 41

Record Output_____________________________________________________________________________________ 42

Mix Output________________________________________________________________________________________ 43

Audio Clock Slave Mode Data Output Timing ___________________________________________________________ 44

Audio Clock Slave Mode Data Input Timing _____________________________________________________________ 46

Audio Clock Generation _____________________________________________________________________________ 48

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