® STV2310 Multistandard TV/VCR Digital Video Decoder and Output Scaler PRELIMINARY DATA Fully Automatic Line C PAL/NTSC/SECAM Format Decoder Analog to Luma Converter CVBS1/Y Digital Chroma and CVBS2/Y Conversion Separator Adaptive Output and SRC Luminance Delay Scaler Data Slicer (TxT, CC, ...) Data Selection YCrCb[7:0] R/Cr Analog to Cr Cb G Digital Tint and Output Interface Clock B/Cb Conversion Control Synchronization HSYNC and IC Monitoring VSYNC Field STV2310 MAIN FEATURES ■ Automatic NTSC/PAL/SECAM Digital Chroma ■ Programmable Horizontal Scaling (x0.25 to Decoder x4 Scaling Factor) and Panorama Vision ■ Worldwide TV Standards Compatible ■ Programmable Cr, Cb output amplitude ■ VBI Data Slicer for Teletext, Closed Caption, ■ Copy-Protection System compatible WSS and other systems ■ H and V Synchronization Processing that is ■ NTSC/PAL Adaptive 4H/2D Comb Filter robust to non-standard sources ■ Analog RGB/Fast Blanking Capture and ■ Single System Clock for all Video Input Insertion in YCrCb Output Flow (SCART Formats legacy) ■ Two-wire I²C Bus Interface up to 400 kHz ■ Analog YCrCb inputs with Tint Control ■ Typical Power Consumption: 500 mW ■ Automatic Flesh Control on 117° or 123° ■ Power Supply: 1.8 V and 3.3 V Color Axis References The STV2310 is a high-quality front-end video ■ NTSC Hue Control circuit for processing all analog NTSC/PAL/SECAM ■ Line-locked ITU-R BT. 656/601 or Square standards into a 4:2:2 YCrCb video format. The Pixel YCrCb Outputs (Data and Clock) STV2310 is programmable through an I²C ■ Orthogonal Correction on Output Pixels interface. ■ ITU-R BT.601 (and Square Pixel) Resolution The STV2310 provides a cost-effective solution for for all Standards TV sets, STBs, DVD Recordable devices and PVR applications. It can be used as a stand-alone chip ■ 8-bit Pixel Output Interface working with third-party products or as a companion chip to the STV3500 for 100-Hz or September 2003 1/140 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. STV2310 Table of Contents Chapter 1 General Description . .5 Chapter 2 Pin Allocation and Description . .7 2.1 Pinout Diagram ...................................................................................................................7 2.2 Pin Descriptions .................................................................................................................7 Chapter 3 Minimum Setup Requirements . .11 Chapter 4 Functional Description . .12 4.1 Analog Input Stage ............................................................................................................. 12 4.1.1 General Description ..............................................................................................................................12 4.1.2 Programming ........................................................................................................................................14 4.2 Synchronization and Monitoring Unit ................................................................................. 14 4.2.1 General Description ..............................................................................................................................14 4.2.2 Programming ........................................................................................................................................15 4.3 Input Sample Rate Conversion .......................................................................................... 16 4.3.1 General Description ..............................................................................................................................16 4.3.2 Linear Interpolation after Polyphase Filters ..........................................................................................18 4.3.3 Speciifc Case for the C Flow ................................................................................................................18 4.3.4 Polyphase Coefficient Set .....................................................................................................................18 4.4 Luminance and Chrominance Separation .......................................................................... 19 4.4.1 General Description ..............................................................................................................................19 4.4.2 Programming ........................................................................................................................................20 4.4.3 Non-User Information ...........................................................................................................................21 4.4.4 Line Capture Structure; Input Line Separation; Sequencing ................................................................22 4.4.5 Y/C Separator Block Structure .............................................................................................................24 4.4.6 PAL / NTSC Y/C Separation .................................................................................................................24 4.4.7 SECAM YC separation .........................................................................................................................32 4.5 Standard Research Sequence Programming .................................................................... 32 4.6 Standard Identification ....................................................................................................... 34 4.7 Chroma Demodulation ....................................................................................................... 34 4.7.1 General Description ..............................................................................................................................34 4.7.2 Programming ........................................................................................................................................34 4.8 Soft Mixer ........................................................................................................................... 35 4.8.1 General Description ..............................................................................................................................35 4.8.2 Programming ........................................................................................................................................35 4.9 Video Correction ................................................................................................................ 36 4.9.1 General Description ..............................................................................................................................36 4.9.2 Programming ........................................................................................................................................36 4.10 Output Scaler and Format Converter ................................................................................. 36 2/140 STV2310 4.10.1 General Description ..............................................................................................................................36 4.10.2 Escape Mechanism ..............................................................................................................................37 4.10.3 Introduction: Programming the DTO .....................................................................................................38 4.10.4 Programming ........................................................................................................................................41 4.11 RGB Insertion ..................................................................................................................... 44 4.11.1 General Description ..............................................................................................................................44 4.11.2 Programming ........................................................................................................................................45 4.12 Analog YCrCb Mode ..........................................................................................................45 4.12.1 General Description ..............................................................................................................................45 4.12.2 Programming ........................................................................................................................................45 4.13 Output FIFO and Line-locked Ouput Pixel Clock Generator .............................................. 46 4.13.1 General Description ..............................................................................................................................46 4.13.2 Input Data .............................................................................................................................................46 4.13.3 Output Data ..........................................................................................................................................47 4.13.4 Insertion of Ancillary Data .....................................................................................................................57 4.13.5 Line-Locked Output Pixel Clock Generation .........................................................................................58 4.13.6 Alternate Functions: Bus Extensions ....................................................................................................58 4.13.7