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发明授权
CN101409796B 数字电视芯片、数字电视系统和减少芯片面积的方法 有权

数字电视芯片、数字电视系统和减少芯片面积的方法
摘要：
本发明揭示一种数字电视芯片包括复用器、第一和第二转换单元。复用器根据控制信号输出S-video的SY或SC信号其中之一至第一转换单元及输出另一个S-video的SY或SC信号至第二转换单元、输出Tuner CVBS的VIF或SIF信号其中之一至第一转换单元以及输出另一个Tuner CVBS的VIF或SIF信号至第二转换单元、或输出CVBS Line-in VIDEO信号至第一或第二转换单元，以减少芯片面积。第一转换单元转换S-video的SY或SC信号其中之一、转换Tuner CVBS的VIF或SIF信号其中之一、或转换CVBS Line-inVIDEO信号为第一数字信号。第二转换单元转换S-video的SY或SC信号其中之一、转换Tuner CVBS的VIF或SIF信号其中之一、或转换CVBS Line-inVIDEO信号为第二数字信号。本发明提出的数字电视芯片、数字电视系统以及用于数字电视芯片的减少芯片面积的方法可以减少芯片面积。
摘要（英）：

A digital television chip having a reduced layout size is disclosed, comprising a multiplexer, and first and second converting units. The multiplexer, according to a control signal, outputs one of S-video signals SY and SC to the first converting unit, outputs the other of the S-video signals SY and SC to the second converting unit, outputs one of Tuner CVBS signals VIF and SIF to the first converting unit, outputs the other of the Tuner CVBS signals VIF and SIF to the second converting unit, or outputs a CVBS Line-in Video signal to one of the first and second converting units, for reducing the size of the chip. The first converting unit converts one of the S-video signals SY and SC, one of the Tuner CVBS signals VIF and SIF, or the CVBS Line-in Video signal into a first digital signal for signal processing. The second converting unit converts one of the S-video signals SY and SC, one of the Tuner CVBS signals VIF and SIF, or the CVBS Line-in Video signal into a second digital signalfor signal processing.

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