CX25836/7 Video Decoder Data Sheet 102267AProduction Data Sheet September 2004 Ordering Information Model Number Description Package CX25836-3X Worldwide video decoder without component input and VIP host port 64-pin lead-free CX25837-3X Worldwide video decoder with component input and VIP host port 64-pin lead-free CX25837-4X Worldwide video decoder with component input and VIP host port 80-pin lead-free Revision History Revision Level Date Description A September 2004 Initial Release © 2004, Conexant Systems, Inc. All Rights Reserved. Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no responsibility for errors or omissions in these materials. Conexant may make changes to specifications and product descriptions at any time, without notice. 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CONEXANT SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE OF THESE MATERIALS. Conexant products are not intended for use in medical, lifesaving or life sustaining applications. Conexant customers using or selling Conexant products for use in such applications do so at their own risk and agree to fully indemnify Conexant for any damages resulting from such improper use or sale. The following are trademarks of Conexant Systems, Inc.: Conexant and the Conexant C symbol. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. Macrovision is a registered trademark of Macrovision Corporation. Gemstar1x and Gemstar2x are registered trademarks of Analog Devices, Inc. For additional disclaimer information, please consult Conexant’s Legal Information posted at www.conexant.com which is incorporated by reference. Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and suggestions to [email protected]. For technical questions, contact your local Conexant sales office or field applications engineer. ii ProductionConexant Data Sheet102267A 9/24/04 CX25836/7 Video Decoder The CX25836 and CX25837 video decoders incorporate Conexant Systems’ fourth Distinguishing Features generation high-quality analog video decoding technology. The device integrates all Worldwide video standards—NTSC (M, J, the analog front-end functions: clamping, AGC and ADCs, along with complete 10-bit 4.43), PAL (B, D, G, H, I, M, N, Nc), video decoding logic required for digitizing video into ITU-R BT.656 or SPI-compliant SECAM (K, L),PAL-60 video streams. Full 10-Bit ADCs and data path Flexible video input mux supporting Eight analog inputs are provided that can be flexibly configured to support composite, composite, S-Video, and component S-Video, and component video inputs, ideal for capturing video from TV tuners, DVD inputs with integrated anti-alias filtering players, camcorders, VCRs, game consoles, and security cameras. Digitized video Five-line adaptive comb filter for NTSC and output is provided by a configurable output port that can support 8-bit and 10-bit PAL sample sizes, embedded sync codes, external timing strobes, and ancillary sliced or Flexible video output port—27 MHz ITU-R raw VBI data. BT.656; VIP1.1, VIP2, or SPI video with separate syncs for square pixel rates Worldwide decoding for all common video standards with automatic format detection Macrovision 1.0 detection compliant and configuration is incorporated for minimizing software development and the Programmable VBI data slicer for data addition of a hardware interrupt pin eliminates the need for the system to poll the services such as closed caption, WSS, device for status. Also included are high-quality processing functions such as five-line Teletext, and program guides adaptive comb filtering, arbitrary horizontal and 5-tap vertical scaling, hue, Power-up configurable two-wire serial command interface or two-wire VIP1.1 or brightness, saturation, and contrast control. VIP2 host port interface The CX25836/7 has multiple-power-down modes to fit your application and power Hardware interrupt to eliminate polling budget needs. The CX25836 is available in one package size: a 64-pin, 7x7 mm Auto-detection and configuration for video TQFP. The CX25837 is available in two package sizes: a 64-pin, 7x7 mm TQFP and an Fast locking mode for security camera 80-pin, 12x12 mm TQFP package. The CX25837-4x is pin-compatible with the applications CX25843/2/1/0 series of products. Auxiliary clock output—for providing an oversample audio clock. The PLL can be locked to the video or used as a general purpose PLL output Infrared transmit and receive logic Internal voltage regulation for single supply operation The CX25837 is pin-compatible with the CX24840/1/2/3 102267AProductionConexant Data Sheetiii 9/24/04 Functional Block Diagram XTI Master VBI Data Slicer and Decoder XTO Clock Input PIXCLK Video VID_DATA[7:0] Video CVBS1/Y1 Output Decoder - Arbitrary Port: VRESET/PRGM3 Horizontal 10-Bit NTSC, PAL, BT.656, HRESET/PRGM2 CVBS2/Y2 and Vertical CVBS/ SECAM SPI, FIELD/PRGM1 Multi-tap CVBS3/Y3 LUMA with 5-Line VIP1.1, DVALID/PRGM0 Polyphase ADC Adaptive VIP2 Comb Scaler IR_RX/PRGM5 Filter I/O Pin IR_TX/PRGM6 CVBS4/Y4/SIF1/Pb MUX GPIO1/PRGM9 CVBS5/C1/SIF2/Pb GPIO0/PRGM8 CVBS6/C2/SIF3/Pb 10-Bit 2-Wire SER_CLK/HAD[0] Chroma Serial SER_DATA/HAD[1] CVBS7/C3/SIF4/Pr ADC Command CHIP_SEL/VIPCLK Input MUX, Anti-alias Filter and AGC or CVBS8/C4/SIF5/Pr VIP Host HCTL/PRGM3 I/F IRQ_N/PRGM4 PLL_CLK/PRGM7 Generic Clock GENERAL NOTE: PRGMx pins are labeled with their default reset functions; however, they can be programmed to provide any of the following internal functions: horizontal active, vertical active, Cb flag, 10-bit video data bits[1:0], or GPIO. iv ProductionConexant Data Sheet102267A 9/24/04 Contents Figures. ix Tables . xi 1 Functional Overview . .1-1 1.1 Analog Video Inputs . 1-1 1.2 Integrated Clamping and Automatic Gain Control . 1-1 1.3 Flexible Decoder Rates . 1-1 1.4 High-Quality Filtering. 1-2 1.5 Video Processing Functions . 1-2 1.6 High-Quality Scaling . 1-2 1.7 Configurable Pixel Output Interface . 1-3 1.8 Vertical Blanking Interval Data Slicing and Decoding. 1-3 1.9 Communications Port and General Functions . 1-3 2 Pin Descriptions . 2-1 2.1 Pin Descriptions . 2-1 3 Detailed Functional Description. 3-1 3.1 Analog Subsystem Overview . 3-1 3.2 Video Mux Inputs . 3-4 3.2.1 General Muxing Scheme. 3-4 3.2.2 Configuring for Composite Inputs . 3-5 3.2.3 Configuring for S-Video . 3-6 3.2.4 Configuring for Component Video . 3-6 3.3 Analog Channel . 3-7 3.3.1 Input Impedance. 3-7 3.3.2 Clamping . 3-7 3.3.3 Negative Reference Input . 3-8 3.3.4 Variable Gain Amplifiers . 3-8 3.3.5 Anti-Alias Filtering . 3-11 3.3.6 Channel Performance . 3-13 3.3.7 Analog to Digital Converter. 3-13 3.4 Digital Video Processing . 3-14 3.4.1 Video Signal Format . 3-16 3.4.2 AFE and Video Auto-Config. 3-17 3.4.3 Video Standard Autodetection . 3-20 Production102267A Conexant Data Sheetv 9/24/04 CX25836/7 Data Sheet 3.4.4 Signal Level Adjust in the Digital Front End . 3-21 3.4.5 Sample Rate Conversion. 3-22 3.4.6 Source Locked Pixel Clock Generation . 3-22 3.4.7 Vertical Sync Detection. 3-23 3.4.8 Luma and Chroma Separation . .3-23 3.4.9 Luma Processing . 3-25 3.4.10 Chroma Processing . 3-29 3.4.11 Copy Protection Detect . 3-32 3.4.12 Timing Generator . 3-32 3.4.13 Fast Channel Switching. 3-33 3.4.14 Temporal Decimation . ..