PIC18LF24K Datasheet, PDF (305/594 Pages) –

PIC18(L)F26/45/46K40
24.9 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 Equation 24-1 for
more details.
EQUATION 24-1: DEAD-BAND DELAY TIME
CALCULATION
TDEAD _{– BAND_MIN} = _F----_C-----_W-----_G------1-_C----_L----_O-----_C----_K---  DBx  4:0>
TDEAD _{– BANDMAX}
=
--------------------1---------------------  DBx  4:0>+1
FCWG _CLOCK
– T _{J I T T E R}
=
T
DEAD –
BAND_MAX
T
DE
A
D
–
BAND_
M
IN
TJITTER = -_F---_C-----_W-----_G-----_{_}--1--_C-----_L----_O----_C-----_K--
T
D
E
A
D
–
B
A
N
D
_MA
X
=
T
D
EAD
–
B
A
ND
_MIN
+
TJ
I
T
TER
EXAMPLE
DBR<4:0>= 0x0A = 10
FCWG_{_CLOCK} = 8 MHz
TJITTER
=
-------1--------
8MHz
=
125 ns
TDEAD _{– BAND_MIN} = 125 ns*10 = 125 s
TDEAD _{– BAND_MAX} = 1.25 s + 0.125s= 1.37s
 2016 Microchip Technology Inc.
Preliminary
DS40001816C-page 305