topic MC56F84789VLL maximum sys_clk_2x signal frequency in Digital Signal Controllers https://community.nxp.com/t5/Digital-Signal-Controllers/MC56F84789VLL-maximum-sys-clk-2x-signal-frequency/m-p/654621#M974 <HTML><HEAD></HEAD><BODY><P>Dear all,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>On the reference manual&nbsp;MC56F847XXRM Rev. 2.0, 03/2016, I noticed that the max frequency of sys_clk_2x should not be more than 200MHz, as shown in figure 18-3, page 352.</P><P>Is it a maximum absolute rating? I didn't find any other specifications about it.</P><P>What would happen if this frequency was exceeded?</P><P>My company has several items working with&nbsp;sys_clk_2x equal to 204,8MHz (that produces accurate baudrates on QSCI). Would it be dangerous for the DSP itself in terms of stability, reliability or anything else?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Best regards,</P><P>Federico Gobetti.</P></BODY></HTML> Mon, 30 Jan 2017 11:22:24 GMT federicogobetti 2017-01-30T11:22:24Z MC56F84789VLL maximum sys_clk_2x signal frequency https://community.nxp.com/t5/Digital-Signal-Controllers/MC56F84789VLL-maximum-sys-clk-2x-signal-frequency/m-p/654621#M974 <HTML><HEAD></HEAD><BODY><P>Dear all,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>On the reference manual&nbsp;MC56F847XXRM Rev. 2.0, 03/2016, I noticed that the max frequency of sys_clk_2x should not be more than 200MHz, as shown in figure 18-3, page 352.</P><P>Is it a maximum absolute rating? I didn't find any other specifications about it.</P><P>What would happen if this frequency was exceeded?</P><P>My company has several items working with&nbsp;sys_clk_2x equal to 204,8MHz (that produces accurate baudrates on QSCI). Would it be dangerous for the DSP itself in terms of stability, reliability or anything else?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Best regards,</P><P>Federico Gobetti.</P></BODY></HTML> Mon, 30 Jan 2017 11:22:24 GMT https://community.nxp.com/t5/Digital-Signal-Controllers/MC56F84789VLL-maximum-sys-clk-2x-signal-frequency/m-p/654621#M974 federicogobetti 2017-01-30T11:22:24Z