应用功能： 电视立体声双伴音处理器与数字识别 The TDA9840 is a stereo/dual sound processor for TV and VTR sets. Its identification ensures safe operation by using internal digital PLL technique with extremely small bandwidth, synchronous detection and digital integration (switching time maximum 2.3 s; identification concerning the main functions).
电路图解压密码：www.838dz.com (小写)
