On -vehicle multimedia terminal's MIC switching circuit

The utility model provides an on -vehicle multimedia terminal's MIC switching circuit for be connected with on -vehicle multimedia terminal, its characterized in that: including first simulation change over switch, second simulation change over switch and microphone module, on -vehicle multimedia terminal connects respectively first simulation change over switch and second simulation change over switch, first simulation change over switch is connected to second simulation change over switch, the second simulation change over switch be connected to microphone module, cost is reduced, improved circuit's reliability to reduce the complexity of circuit. 本实用新型提供了种车载多媒体终端的MIC切换电路，用于与车载多媒体终端连接，其特征在于：包括第模拟切换开关、第二模拟切换开关以及麦克风模块，所述车载多媒体终端分别连接所述第模拟切换开关以及第二模拟切换开关，所述第模拟切换开关连接至所述第二模拟切换开关，所述第二模拟切换开关连接至所述麦克风模块；降低成本，提高电路的可靠性，并且降低电路的复杂程度。