ZHCSE90D September 2015 – September 2020 DLPC910
PRODUCTION DATA
To minimize instantaneous AC current switching in the DMD, the LVDS output bus trace lengths should differ to produce a recommended 100-200 ps skew from one bus to another. Table 10-4shows two examples how buses can be skewed assuming 180-200 ps per 1000 mils. Keep in mind the total skew from one bus to another should be kept below the maximum skew for the DMD. Refer to Related Documentation for the DMD datasheet regarding maximum DMD LVDS input bus skew.
Bus Group | Example 1 Bus Group Trace Lengths | Example 2 Bus Group Trace Lengths | UNIT |
---|---|---|---|
DDC_DCLKOUT_A DDC_DOUT_A DDC_SCTRL_A | 7454 | 7454 | mils |
DDC_DCLKOUT_B DDC_DOUT_B DDC_SCTRL_B | 5257 | 7454 | mils |
DDC_DCLKOUT_C DDC_DOUT_C DDC_SCTRL_C | 6936 | 5257 | mils |
DDC_DCLKOUT_D DDC_DOUT_D DDC_SCTRL_D | 5886 | 5257 | mils |