Dead-Band Jitter

When the rising and falling edges of the input source are asynchronous to the CWG clock, it creates jitter in the dead-band time delay. The maximum jitter is equal to one CWG clock period. Refer to the equations below for more details.

Figure 1. Dead-Band Delay Time Calculation

TDEAD−BAND_MIN=1FCWG_CLOCK•DBx<5:0>

TDEAD−BAND_MAX=1FCWG_CLOCK•DBx<5:0>+1

TJITTER=TDEAD−BAND_MAX−TDEAD−BAND_MIN

TJITTER=1FCWG_CLOCK

TDEAD−BAND_MAX=TDEAD−BAND_MIN+TJITTER

Figure 2. Dead-Band Delay Example Calculation

DBx<5:0>=0x0A=10FCWG_CLOCK=8⁢ MHzTJITTER=18⁢ MHz=125⁢⁢nsTDEAD−BAND_MIN=125⁢⁢ns•10=125⁢μsTDEAD−BAND_MAX=1.25⁢⁢μs+0.125⁢ μs=1.37⁢⁢μs