ST7538 problem

[c239955_stm1_stmicro_com]

Posted on August 25, 2005 at 06:50

ST7538 problem

[c239955_stm1_stmicro_com]

Posted on August 24, 2005 at 11:47

hello

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

[yuanye-28]

Posted on August 25, 2005 at 06:50

i don't know your means.