Datasheet

STPMC1 Theory of operation
Doc ID 15728 Rev 7 41/77
Equation 4
ϕ
phc
is the phase compensation in degree,
K
PHC
is the calculated coefficient,
f
line
is the frequency of voltage signal,
f
phc
is the clock for phase compensation.
The clock for phase compensation f
phc
can be derived as reported in Tabl e 2 3 and Ta bl e 2 4
Table 23. f
phc
frequency settings
MDIV (1 bit) PM (1 bit) HSA (1 bit) f
CLK
X00f
XTAL1
/ 8
X01f
XTAL1
/ 4
01Xf
XTAL1
/ 2
11Xf
XTAL1
/ 4
Table 24. f
phc
frequency values
f
XTAL1
PM (1 bit) HSA (1 bit) f
CLK
4.194 MHz
0
0
524 kHz
4.195 MHz 614 kHz
8.192 MHz 1.024 MHz
9.830 MHz 1.229 MHz
4.194 MHz
1
1.049 MHz
4.195 MHz 1.229 MHz
8.192 MHz 2.048 MHz
9.830 MHz 2.458 MHz
4.194 MHz
1X
2.097 MHz
4.195 MHz 2.458 MHz
8.192 MHz 2.048 MHz
9.830 MHz 2.458 MHz
Table 25. f
phc
frequency settings for PM = 1
f
XTAL1
f
phc
4.194 MHz 2.097 MHz
4.915 MHz 2.458 MHz
8.192 MHz 2.048 MHz
9.830 MHz 2.458 MHz
phc
line
PHCphc
f
f360
K
⋅°
=ϕ