THS8200-EP Datasheet, PDF (2/104 Pages) Texas Instruments – All-Format Oversampled Component Video/PC Graphics D/A System With Three 11-Bit DACs, CGMS Data Insertion

THS8200-EP
SLES253 – DECEMBER 2009
www.ti.com
Contents
1 Introduction ........................................................................................................................ 9
1.1 Features ...................................................................................................................... 9
2 Overview .......................................................................................................................... 10
2.1 Description ................................................................................................................. 10
2.2 Ordering Information ...................................................................................................... 10
2.3 DEVICE INFORMATION ................................................................................................. 11
3 THS8200 Functional Overview ............................................................................................. 14
3.1 Data Manager (DMAN) ................................................................................................... 15
3.1.1 Interpolating Finite Impulse Responses Filter (IFIR) ....................................................... 15
3.1.2 Color-Space Conversion (CSC) .............................................................................. 15
3.1.3 Clip/Shift/Multiplier (CSM) ..................................................................................... 15
3.1.4 Digital Multiplexer (DIGMUX) ................................................................................. 15
3.1.5 Display Timing Generator (DTG) ............................................................................. 16
3.1.6 Clock Generator (CGEN) ...................................................................................... 16
3.1.7 Clock Driver (CDRV) ........................................................................................... 16
3.1.8 I²C Host Interface (I2CSLAVE) ............................................................................... 16
3.1.9 Test Block (TST) ................................................................................................ 16
3.1.10 D/A Converters (DAC) ......................................................................................... 17
4 Detailed Functional Description .......................................................................................... 18
4.1 Data Manager (DMAN) ................................................................................................... 18
4.2 Input Interface Formats ................................................................................................... 19
4.3 Clock Generator (CGEN)/Clock Driver (CDRV) ....................................................................... 22
4.4 Color Space Conversion (CSC) ......................................................................................... 24
4.5 Clip/Scale/Multiplier (CSM) ............................................................................................... 26
4.5.1 Clipping .......................................................................................................... 27
4.5.2 Shifting ........................................................................................................... 27
4.5.3 Multiplying ....................................................................................................... 28
4.6 Interpolating Finite Impulse Response Filter (IFIR) ................................................................... 29
4.7 Display Timing Generator (DTG) ........................................................................................ 33
4.7.1 Overview of Functionality ...................................................................................... 33
4.7.2 Functional Description ......................................................................................... 34
4.7.2.1 Predefined DTG Video Formats (Presets) ...................................................... 35
4.7.2.2 Internal Synchronization .......................................................................... 35
4.7.2.3 Output Synchronization: Composite Sync ...................................................... 36
4.7.2.4 Output Synchronization: Hsync/Vsync Outputs ................................................ 37
4.7.3 DTG Line Type Overview ...................................................................................... 37
4.7.3.1 HDTV Mode ......................................................................................... 37
4.7.3.2 Active Video ........................................................................................ 40
4.7.3.3 FULL NTSP (Full Normal Tri-Level Sync Pulse) ............................................... 40
4.7.3.4 NTSP NTSP (Normal Tri-Level Sync Pulse/Normal Tri-Level Sync Pulse) ................ 41
4.7.3.5 BTSP BTSP (Broad Pulse and Tri-Level Sync Pulse/Broad Pulse and Tri-Level Sync
Pulse) ................................................................................................ 41
4.7.3.6 NTSP BTSP (Normal Tri-Level Sync Pulse/ Broad Pulse and Tri-Level Sync Pulse) .... 42
4.7.3.7 BTSP NTSP (Broad Pulse and Tri-Level Sync Pulse/Normal Tri-Level Sync Pulse) ..... 42
4.7.3.8 Full BTSP (Full Broad Pulse and Tri-Level Sync Pulse) ...................................... 43
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Contents
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