Posted on September 30, 2005 at 12:44Hello, There is a no isolated solution for coupling to the network. How is realise it? Thanks

Posted on September 14, 2005 at 09:47Hello, Could you give me some advise for the layout of the ST7538. There are 3 different GND!! thanks [ This message was edited by: numerobis on 14-09-2005 13:19 ]

Posted on August 29, 2005 at 08:14can you explain me fhe function of pins: test1 test2 test3? thanks

Posted on August 29, 2005 at 08:12are you sure? How do you measure this?

Posted on August 24, 2005 at 11:47hello Thanks to R12 you can program the value of the signal (p20). In my design it works for all carrier frecency inferior at 132Khz. For 132Khz the signal is bad if r12 > 1Kohm Do you know why? Thanks