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TW9903 반도체 회로 부품 판매점

Multi-standard Video Decoder



Techwell 로고
Techwell
TW9903 데이터시트, 핀배열, 회로
Techwell, Inc.
TW9903 – Multi-standard Video
Decoder With High Quality Down Scaler
Preliminary Data Sheet
Techwell Confidential. Information may change
without notice.
Disclaimer
This document provides technical information for the user. Techwell, Inc. reserves the right to modify the
information in this document as necessary. The customer should make sure that they have the most
recent data sheet version. Techwell, Inc. holds no responsibility for any errors that may appear in this
document. Customers should take appropriate action to ensure their use of the products does not infringe
upon any patents. Techwell, Inc. respects valid patent rights of third parties and does not infringe upon or
assist others to infringe upon such rights.
TECHWELL, INC.
1
REV. 0.92 ( B )
06/02/2002
Free Datasheet http://www.datasheet4u.com/


TW9903 데이터시트, 핀배열, 회로
TW9903
Introduction and Features....................................................3
Functional Description.........................................................4
Overview ...........................................................................5
Analog Front-end...............................................................5
Video SourceSelection...................................................5
Clamping and Automatic Gain Control.............................6
Analog to Digital Converter..............................................6
Sync Processing................................................................6
Horizontal sync processing .............................................6
Vertical sync processing.................................................7
Color Decoding..................................................................7
Y/C separation...............................................................7
Color demodulation ........................................................7
Automatic Chroma Gain Control......................................8
Low Color Detection and Removal..................................8
Automatic standard detection..........................................8
Video Format support .....................................................9
Component Processing......................................................9
Luminance Processing...................................................9
Gamma .........................................................................9
Sharpness.....................................................................9
The Hue and Saturation................................................10
Closed Caption Decoding.................................................10
Power Management.........................................................10
Control Interface..............................................................10
Output Interface...............................................................11
Clock and Control Signal Output....................................12
HSYNC, VSYNC and FIELD.........................................13
HACTIVE.....................................................................15
VACTIVE.....................................................................16
LVALID........................................................................16
DVALID and VCLK.......................................................17
CbCr data and CBFLAG...............................................19
CLKX2 and CLKX1.......................................................20
ITU-R BT.656...............................................................20
Down-scaling and Cropping ..........................................21
TW9903 Down-Scaling.................................................21
TW9903 Cropping........................................................22
VBI Data Processing........................................................24
TW9903 VBI Overview .................................................24
VBI Frame Output Mode...............................................25
VBI Byte Order.............................................................25
Closed Captioning and Extended Data Services ................25
Two Wire Serial Bus Interface...........................................27
Test Modes .....................................................................30
Filter Curves ....................................................................31
Decimation filter............................................................31
Chroma Band Pass Filter Curves ..................................31
Luma Notch Filter Curve for NTSC and PAL/SECAM.....32
Chrominance Low -Pass Filter Curve.............................32
Horizontal Scaler Pre- Filter curves ................................33
Vertical Interpolation Filter curves..................................33
Peaking Filter Curves....................................................34
Control Register.................................................................35
TW9903 Register SUMMARY .......................................35
0x00 – Product ID Code Register (ID)...........................36
0x01 – Chip Status Register (CSTATUS).......................37
0x02 – Input Format (INFORM) .....................................38
0x03 – Output Format Control Register (OPFORM) .......39
0x04 – GAMMA and HSYNC Delay Control...................39
0x05 – Output Polarity Register (POLARITY).................40
0x06 – Analog Control Register (ACNTL).......................41
0x07 – Cropping Register, High (CROP_HI) ..................41
0x08 – Vertical Delay Register, Low (VDELAY_LO) .......42
0x09 – Vertical Active Register, Low (VACTIVE_LO)......42
0x0A – Horizontal Delay Register, Low (HDELAY_LO)...42
0x0B – Horizontal Active Register, Low (HACTIVE_LO) .42
0x0C – Control Register I (CNTRL1)..............................43
TECHWELL, INC.
2
0x0D – Vertical Scaling Register, Low (VSCALE_LO)....43
0x0E – Scaling Register, High (SCALE_HI) ...................44
0x0F – Horizontal Scaling Register, Low (HSCALE_LO) 44
0x10 – BRIGHTNESS Control Register (BRIGHT) .........44
0x11 – CONTRAST Control Register (CONTRAST) ......44
0x12 – SHARPNESS Control Register I (SHARPNESS) 45
0x13 – Chroma (U) Gain Register (SAT_U)...................45
0x14 – Chroma (V) Gain Register (SAT_V) ...................45
0x15 – Hue Control Register (HUE) ...............................46
0x16 – Sharpness Control Register II ............................ 46
0x17 – Reserved..........................................................46
0x18 – Coring Control Register (CORING) ....................46
0x19 – VBI Control Register (VBICNTL)........................47
0x1A – CC/EDS Status Register (CC_STATUS)............48
0x1B – CC/EDS Data Register (CC_DATA).................. 48
0x1C – Standard Selection (SDT) .................................49
0x1D – Standard Recognition (SDTR)...........................50
0x1E – General Programmable I/O Register (GPIO) ......50
0x1F – Test Control Register (TEST).............................51
0x20 – Clamping Gain (CLMPG)...................................51
0x21 – Individual AGC Gain (IAGC) ..............................52
0x22 – AGC Gain (AGCGAIN)......................................52
0x23 – White Peak Threshold (PEAKWT) .....................52
0x24– Clamp level (CLMPL).........................................52
0x25– Sync Amplitude (SYNCT)...................................52
0x26 – Sync Miss Count Register (MISSCNT) ...............53
0x27 – Clamp Position Register (PCLAMP) ...................53
0x28 – Vertical Control Register....................................53
0x29 – Vertical Control II...............................................54
0x2A – Color Killer Level Control...................................54
0x2B – Comb Filter Control...........................................54
0x2C – Luma Delay and HSYNC Control ......................54
0x2D – Miscellaneous Control Register I (MISC1)..........55
0x2E – Miscellaneous Control Register II (MISC2).........55
0x2F – Miscellaneous Control III (MISC3)......................56
0x30 – Macrovision Detection....................................... 57
0x31 – Clamp Cntl2......................................................57
0x32 – FILL DATA.......................................................58
0x33 – VBI CNTL1.......................................................58
0x34 – VBI CNTL2.......................................................58
0x35 – MISC 4.............................................................58
0x36 – Slice Level........................................................59
0x37 – WSS1...............................................................59
0x38 – WSS2...............................................................59
0x39 – CSTATUS III....................................................59
0x3A – HFREF ............................................................ 60
0x3B – CLAMP MODE.................................................60
Pin Diagram........................................................................61
Pin Description................................................................62
Analog Interface Pins ...................................................62
Two Wire Interface Pins................................................63
Video Timing Unit Pins .................................................63
Clock Interface Pins .....................................................65
Test Pins .....................................................................65
Power and Ground Pins ...............................................66
Parametric Information......................................................67
AC/DC Electrical Parameters ...........................................67
Clock Timing Diagram.................................................. 69
Application Information.....................................................70
Video Input Interface....................................................70
A/D Converter..............................................................70
Clamping/AGC............................................................. 70
Clock Generation.........................................................70
Power-Up.................................................................... 70
Application Schematics....................................................71
PCB Layout Considerations ..........................................72
100-pin PQFP Package Mechanical Drawing....................73
100-pin LQFP Package Mechanical Drawing....................74
REV. 0.92 ( B )
06/02/2002
Free Datasheet http://www.datasheet4u.com/




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