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PRODUCT INFORMATION
Vol. 61
OSD IC for PAL VCRs Developed On-chip VPS/PDC slicer included for the first time in the industry.
LC74775/M
Overview
Television broadcasts in Europe already include VPS (video program system) and PDC (program delivery control) signals added during the vertical blanking interval. These signals support functions such as automatic VCR record adjustment and station identification. Until now, a special-purpose IC has been required to receive these signals. VPS is an automatic recording control service provided mainly by broadcasters in Germany. It operates by automatically recognizing the VPS data added in the 16-line vertical blanking interval and assures that the desired program is recorded correctly, even if the program is delayed, moved to an earlier time, or otherwise modified, or if the program is interrupted by another program such as a news special. The user simply enters the date, station, and starting time of the broadcast (actually, an identifying label) into the VCR. PDC is another automatic recording control service that uses the BSDP (Broadcast Service Data Packet) format 2 teletext provided mainly in Europe. It provides essentially the same functions as VPS. The teletext signal system is included in the broadcast signal by adding it to the vertical blanking interval. It compares the information set in the VCR timer circuit (record timer settings) with the broadcast PDC data and switches the VCR to record mode when the data match. These systems basically start recording when the signal broadcast from the TV station matches the information (record timer settings, including date, time, country, and station identifier) programmed by the user in the VCR. VPS and PDC are services mainly designed to provide more accurate time management for timer-programmed VCR recording. In these systems the programs themselves control the recording processes even if the program schedule changes, with control based on the "label" (i.e. the VPS or PDC data) transmitted in addition to the program itself. Sanyo has developed a new IC (the LC74775/M) that integrates the VPS/PDC data slicer functions with an earlier OSD (on-screen display) controller IC. This newly developed IC integrates OSD functions and VPS or PDC data slicing functions on a single chip for the first time in the industry by sharing the synchronization system circuit.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters Overseas Marketing Division
TOKYO OFFICE: Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 1
PRODUCT INFORMATION
Features
* Text structure: Display of 24 characters x 12 lines (up to 288 characters) * Character structure: 12 dots x 18 dots * Characters: 128 characters, each of which can be displayed in 3 sizes * The display start position can be set to one of 64 positions horizontally and one of 64 positions vertically. * Character blinking can be specified on a per character basis with a frequency of 0.5 or 1.0 seconds. * Background color and line background color, using internal synchronization, can be specified to be one of eight colors: cyan, yellow, red, blue, cyan-blue, green, orange, or magenta. * Sync separator and data slicer circuits are built in. * The video output is a PAL format composite video signal. * External control consists of a 3-wire system for OSD control and an I2C bus for VPS/PDC control.
Specifications
Supply voltage: Packages: 5V LC74775 LC74775M DIP-30SD MFP-30S
Sample Availability
Samples of the LC74775/M are available in May 1998; production quantities are anticipated in August 1998.
APRIL 22, 1998
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters Overseas Marketing Division
PS 42298/61
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