digital infotainment products Bt852 Digital Video Encoder High Performance and Low Cost for a Wide Range of Video Systems High performance video combined with the right set of features make Conexant’s Bt852 a versatile device for most video systems. High quality 9-bit DACs provide the clear, lifelike video required for modern satellite and cable television set-top boxes, VCD and Super VCD players, PC add-in cards, video conferencing systems and digital cameras. Power conservation modes extend portable system battery life and help to reduce system heating. Automatic mode detection and switching (in slave mode) are included for simple programming of the Bt852 outputs. The output section of the Bt852 contains current output DACs which require minimal external passive components to provide the best flexibility,functionality and video performance — all for a very low system design cost. Flexible, Easy to Use Digital Video Encoder The Bt852 is designed specifically for VideoCD, Super VCD, video Distinguishing Features games and other digital video systems which require the conversion of digital YCrCb (MPEG) data to analog NTSC/PAL video. The device supports a glueless interface with most popular MPEG decoder ICs. • 2x oversampling simplifies external filtering Worldwide video standards are supported, including NTSC (N. America, Japan) PAL-B, D, G, H, I (Europe, Asia), PAL-M (Brazil), PAL-N (Uruguay, Paraguay), and PAL-Nc (Argentina). Current output DACs • Master or slave video timing • Interlaced and noninterlaced operation provide sufficient output current to meet the requirements of any consumer video system. In addition, the device supports a switchable setup pedestal for use with NTSC applications in Japan. • Automatic mode detection/switching in slave mode • On-board voltage reference • Extremely compact 32-pin TQFP package features and specifications Further Information [email protected] 1-800-854-8099 (North America) 33-14-906-3980 (International) DI.PB19 98-5843 Digital Infotainment Printed in USA China Phone: (86 2) 6361 2515 Fax: (86 2) 6361 2516 Web Site www.conexant.com India Phone: (91 11) 692 4780 Fax: (91 11) 692 4712 Hong Kong Phone: (852) 2827 0181 Fax: (852) 2827 6488 World Headquarters Bt852 functional block diagram The composite analog video signal is output simultaneously onto two outputs. This allows one output to provide baseband composite video while the other drives an RF modulator. Analog luminance (Y) and chrominance (C) information Conexant Systems, Inc. 4311 Jamboree Road P. O. Box C Newport Beach, CA 92658-8902 Phone: (949) 483-4600 Fax: (949) 483-6375 is available for interfacing to S-video equipment. As a slave, the Bt852 automatically detects the input data formats (PAL/NTSC, CCIR601/ square pixel, interlaced/noninterlaced) and switches internally to provide the proper format on the outputs. This feature, along with the on-board voltage reference and single clock interface, makes the Bt852 extremely simple to use. In addition, the use of a 2x oversampling on-chip simplifies external filter design resulting in reduced overall system cost. U.S. Florida/South America Phone: (727) 799-8406 Fax: (727) 799-8306 U.S. Los Angeles Phone: (805) 376-0559 Fax: (805) 376-8180 U.S. Mid-Atlantic Phone: (215) 244-6784 Fax: (215) 244-9292 Multiple Video Outputs for Televisions of All Varieties The Bt852 provides analog luminance (Y) and chrominance (C) information in the Y and C outputs for interfacing with S-video equipment. Composite (CVBS) information is available on the two channels when S-video outputs are not required. The selection between S-video and CVBS outputs is U.S. North Central Phone: (630) 773-3454 Fax: (630) 773-3907 U.S. Northeast Phone: (978) 692-7660 Fax: (978) 692-8185 determined by setting the SVIDEO pin high or low, respectively. U.S. Northwest/Pacific West Phone: (408) 249-9696 Fax: (408) 249-7113 Implementation The Bt852 is packaged in a 32-pin Thin Quad Flat Pack (TQFP) with a 7.0 x 7.0 mm body size. It requires only a minimum of discrete passive support components for external filtering. It is ideal for low cost, high performance video systems and consumer electronics. Product Features Applications • 8-bit 4:2:2 YCrCb inputs for glueless interface to MPEG decoders • Digital satellite television receivers • NTSC/PAL/PAL-M/PAL-Nc (Argentina) composite video outputs • Digital and analog cable television receivers • CVBS or S-video outputs • Portable VCD and Super VCD players • 5V supply voltage • Digital cameras • CCIR 601 or square pixel operation • PC add-in cards with TV output • 2x oversampling simplifies external filtering • PC video editing cards • 9-bit DACs • Karaoke/video game appliances (DBS/DVB/DSS) • VCD players / Super VCD players • Master or slave video timing • Interlaced and noninterlaced operation Related Products • Automatic mode detection/switching in slave mode • Bt856/857 • Bt860/861 • Bt864A/865A • Bt866/867 • On-board voltage reference U.S. South Central Phone: (972) 733-0723 Fax: (972) 407-0639 U.S. Southeast Phone: (919) 858-9110 Fax: (919) 858-8669 U.S. Southwest Phone: (949) 483-9119 Fax: (949) 483-9090 APAC Headquarters Conexant Systems Singapore, Pte. Ltd. 1 Kim Seng Promenade Great World City #09-01 East Tower Singapore 237994 Phone: (65) 737 7355 Fax: (65) 737 9077 • Bt868/869 • Extremely compact 32-pin TQFP package Conexant and the Conexant symbol are trademarks of Conexant Systems, Inc. Australia Phone: (61 2) 9869 4088 Fax: (61 2) 9869 4077 Korea Phone: (82 2) 565 2880 Fax: (82 2) 565 1440 Europe Headquarters Conexant Systems France Les Taissounieres B1 1681 Route des Dolines BP 283 06905 Sophia Antipolis Cedex France Phone: (33 4) 93 00 33 35 Fax: (33 4) 93 00 33 03 Europe Central Phone: (49 89) 829 1320 Fax: (49 89) 834 2734 Europe Mediterranean Phone: (39 02) 9317 9911 Fax: (39 02) 9317 9913 Europe North Phone: (44 1344) 486 444 Fax: (44 1344) 486 555 Europe South Phone: (33 1) 41 44 36 50 Fax: (33 1) 41 44 36 90 Middle East Headquarters Conexant Systems Commercial (Israel) Ltd. P. O. Box 12660 Herzlia 46733, Israel Phone: (972 9) 952 4064 Fax: (972 9) 951 3924 Japan Headquarters Conexant Systems Japan Co., Ltd. Shimomoto Building 1-46-3 Hatsudai, Shibuya-ku,Tokyo 151-0061 Japan Phone: (81 3) 5371-1567 Fax: (81 3) 5371-1501 Taiwan Headquarters Conexant Systems,Taiwan Co., Ltd. Room 2808 International Trade Building 333 Keelung Road, Section 1 Taipei 110,Taiwan, ROC Phone: (886 2) 2720 0282 Fax: (886 2) 2757 6760