TDA7729 by ST Design and production,in Shenzhen Jingchuanglian Electronic Technology Co., Ltd. Spot sales,And can pass Shenzhen Jingchuanglian Electronic Technology Co., Ltd. Purchasing。TDA7729 Price reference ¥ 0.00。TDA7729 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information TDA7729 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial