CXA2089Q Multi-Function Electronic Switch Integrated Circuit

Published:2011/7/10 3:11:00 Author:Robert | Keyword: Multi-Function, Electronic, Switch, Integrated | From:SeekIC

The CXA2089Q is a multi-function electronic switch IC produced by the Japanese Sony company which is widely used in domestic and imported plasma and other large-screen color TV sets, such as the LG series RF-02RA cassette mechanism and so on. 1.Its functional features. The CXA2089Q IC has five groups composite video signal input, three groups Y/C signal input, two groups composite video signal output, 2 groups Y/C signal output, 5 groups L/R sound-channel audio signal input, 2 groups L/R sound-channel audio signal output, which support the S1 and 3-channel S2 protocol. It has internal Y/C hybrid circuit and wideband video amplifier (20MHz). Its audio squelch can be controlled from the external provided signal. The whole signal conversion is achieved under the I2C bus control. The CXA2089A IC could not only achieve the internal and external video, internal and external double-sound-channel audio signal's conversion, but also can easily achieve the conversion between the external S-video port Y/C signal and internal Y/C signal separated from the Y/C separation circuit. The CXA2089Q IC's internal circuit diagram is shown in picture 1. The picture 1 shows the CXA2089Q IC's internal circuit diagram.



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