The utility model discloses an audio channel switching circuit and digital television integrated digital television, including ATV channel and DTV channel, the ATV channel digital audio signal and the DTV channel digital audio signal to a switching circuit for gating switch, digital audio output interface and the switch output circuit is selected a digital audio signal transmission to the TV, the control terminal receives the TV main chip output channel selection signal. The utility model is designed on the audio channel switching circuit in one machine ATV channel and DTV channel, which can be digital audio signals from the ATV and DTV channel output respectively through the digital audio output interface of television, so regardless of the user to choose audio and video programs to watch ATV channel or DTV interface is used to receive television signals, can the program sound playback output through the external amplifier, fully meet the user's needs and aspirations.
【技术实现步骤摘要】
【技术保护点】
１．一种数字电视一体机的音频通道切换电路，包括ＡＴＶ通道和ＤＴＶ通道，其特征在于：所述ＡＴＶ通道的数字音频信号和ＤＴＶ通道的数字音频信号传输至一开关电路进行选通切换，所述开关电路输出选中的一路数字音频信号传输至电视机的数字音频输出接口，所述开关电路的控制端接收电视机主芯片输出的通道选择信号。
【技术特征摘要】
【专利技术属性】
技术研发人员：张文，
申请(专利权)人：青岛海信电器股份有限公司，
类型：实用新型
国别省市：95
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