Single-chip video filter, cache 2-in-1 product (ST)

STMicroelectronics has introduced two video filters, the cache 2-in-1 product TSH345 and TSH346. The new products are targeted at consumer electronics products, based on the advantages of highly integrated technology, and have the advantages of cost savings and supply chain. The new product pins are pin compatible with existing products and rely on the productivity advantages of STMicroelectronics' mass production.

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In consumer electronics such as Blu-ray players, standard DVD players, personal video recorders (PVRs), set-top boxes and digital TVs, the new TSH345 and TSH346 feed output signals to TV monitors via a 75Ω video Cable. The TSH345 or TSH346 monolithically integrates three complete filters/buffers to transmit RGB signals or component video outputs (such as Y-Pb-Pr), eliminating the need for multiple discrete devices. In addition, the new product does not require the input capacitors normally used to protect the video sync signal to function properly, and requires only a single 5V supply. These two advantages help customers further save costs and simplify product design.

The TSH345 can drive high-definition video signals up to 30MHz and drive standard-definition video signals for continuous or progressive scanning. The new product package also provides an alternate pin for the customer to configure the power-saving mode of operation. The TSH346 is targeted at high definition devices. Both new products are small-sized placement devices that can directly replace other filter/cache chips and serve as the second source of these products. TSH345 can replace FMS6203, FMS6418, ADA4412-3 or MAX7454; TSH346 can replace FMS6363, ML6426-5, ADA4417-3, THS7316 or MAX9500-9501. All products are tested with maximum and minimum parameter values ​​one by one to ensure the best performance of the device in mass-produced consumer electronics.

TSH345 and TSH346 are now in volume production and samples are available.

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