This multi-standard chip supports the Advanced Television Systems Committee (ATSC) Standard A/53 Annex D (8VSB2) for digital terrestrial receivers and the ITU-T J.83/B (US Cable) standard for cable television. Moreover, it also supports Downlink Interactive Out-of-Band (OOB) QPSK demodulation and fully integrated super-heterodyne down-conversion tuner, eliminating the need for an external OOB tuning circuit.
The STV0370 features strong multi-channel signal and echo suppression for enhanced indoor and outdoor antenna reception. It supports the CEA antenna control interface standard (EIA/CEA-909, parts A and B), allowing users to adjust the antenna gain, polarization and beam direction by using smart antenna technology instead of adjusting the physical position to optimize reception.
To facilitate system software control, the user can manage the STV0370 through a 2-wire I2C interface. On-chip features include high-performance 10-bit and 8-bit ADCs, and integrated SRAM for byte insertion processing, so no external memory is required.
The STV0370 uses ST's 90nm process technology and smaller die size to ensure low cost and reduced power consumption. Its package is available in a 128-pin LQFP package. The number of samples is now available. Mass production will be achieved in the first quarter of 2005. The price in bulk is $8.00 (for reference only).
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Alarm release mainly uses standard equipment such as audio alarms. During wartime, communication, broadcasting, and television systems must prioritize the transmission and issuance of air defense alarm signals, and auxiliary means such as sirens, horns, and gongs can also be used. The sound alarm must be set at the designated location, and the alarm facilities must be maintained in good working condition. The release and transmission of alarms should be fast and accurate, and multiple means should be used simultaneously; Strengthen communication and liaison with superiors, subordinates, and neighbors, receive air raid intelligence information at any time, strengthen observation of air targets, and promptly report air raid intelligence; According to the situation and duration of the air raid, timely release the warning signal. With the sudden increase of air raids, the increase of attack methods, and the expansion of destruction, the importance of air defense alerts is increasingly being valued. The accuracy, timeliness, and continuous issuance ability of air defense alerts are required to be higher. The issuance methods of air defense alerts will also become more flexible and diverse with the construction and improvement of communication and network.
Early Warning System, Control Devices, Electronic Sirens, Natural Disaster Warning System, Alarm System
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