https://community.nxp.com/t5/Other-NXP-Products/TDA1572/m-p/1904136#M23675 <P>I tried to build an AM receiver with the TDA1572 integrated circuit. The specimens found on the Asian market are marked with the Philips logo. When I feed according to the application scheme, the consumption at pin 1 is very high, the voltage at pin 1 dropping to 1V (inductance feeding at 9V). I bought from several sources, the result being the same. Then I used the TDA1072, an equivalent integrated circuit that complies with the specifications in the catalog sheet and the assembly is functional.<BR />Question:<BR />Does anyone have an application schematic for this possible new version of the TDA1572 circuit?<BR />Any information or suggestion will be appreciated.<BR />Thank you!</P> Tue, 09 Jul 2024 10:10:34 GMT fox7878 2024-07-09T10:10:34Z https://community.nxp.com/t5/Other-NXP-Products/TDA1572/m-p/1904136#M23675 <P>I tried to build an AM receiver with the TDA1572 integrated circuit. The specimens found on the Asian market are marked with the Philips logo. When I feed according to the application scheme, the consumption at pin 1 is very high, the voltage at pin 1 dropping to 1V (inductance feeding at 9V). I bought from several sources, the result being the same. Then I used the TDA1072, an equivalent integrated circuit that complies with the specifications in the catalog sheet and the assembly is functional.<BR />Question:<BR />Does anyone have an application schematic for this possible new version of the TDA1572 circuit?<BR />Any information or suggestion will be appreciated.<BR />Thank you!</P> Tue, 09 Jul 2024 10:10:34 GMT https://community.nxp.com/t5/Other-NXP-Products/TDA1572/m-p/1904136#M23675 fox7878 2024-07-09T10:10:34Z