15.6.3.6 Oscillator Tolerance

The oscillator tolerance, df, around the nominal frequency of the oscillator, fnom, is defined in Equation 15-11.

Equation 15-12 through Equation 15-16 describe the conditions for the maximum tolerance of the oscillator.

$\left(1-\mathit{\text{d}}\mathit{\text{f}}\right)\times \mathrm{fnom}\le {\mathit{\text{F}}}_{\mathrm{CAN}}\le \left(1+\mathit{\text{d}}\mathit{\text{f}}\right)\times \mathit{\text{f}}\mathit{\text{n}}\mathit{\text{o}}\mathit{\text{m}}$

$\mathit{\text{d}}\mathit{\text{f}}\le \frac{\mathit{\text{N}}\mathit{\text{S}}\mathit{\text{J}}\mathit{\text{W}}}{2\times 10\times \frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{N}}\mathit{\text{T}}\mathit{\text{Q}}}}$

$\mathit{\text{d}}\mathit{\text{f}}\le \frac{\mathit{\text{m}}\mathit{\text{i}}\mathit{\text{n}}\left(\mathit{\text{N}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}1,\mathit{\text{N}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}2\right)}{2\times \left(13\times \frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{N}}\mathit{\text{T}}\mathit{\text{Q}}}-\mathit{\text{N}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}2\right)}$

$\mathit{\text{d}}\mathit{\text{f}}\le \frac{\mathit{\text{D}}\mathit{\text{S}}\mathit{\text{J}}\mathit{\text{W}}}{2\times 10\times \frac{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{D}}\mathit{\text{T}}\mathit{\text{Q}}}}$

$\mathit{\text{d}}\mathit{\text{f}}\le \frac{\mathit{\text{m}}\mathit{\text{i}}\mathit{\text{n}}\left(\mathit{\text{N}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}1,\mathit{\text{N}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}2\right)}{2\times \left(\left(6\times \frac{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{D}}\mathit{\text{T}}\mathit{\text{Q}}}-\mathit{\text{D}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}2\right)\times \frac{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}+7\times \frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{N}}\mathit{\text{T}}\mathit{\text{Q}}}\right)}$

$\mathit{\text{d}}\mathit{\text{f}}\le \frac{\mathit{\text{D}}\mathit{\text{S}}\mathit{\text{J}}\mathit{\text{W}}-\mathit{\text{m}}\mathit{\text{a}}\mathit{\text{x}}\left(0,\left(\frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}-1\right)\right)}{2\times \left(\left(2\times \frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{N}}\mathit{\text{T}}\mathit{\text{Q}}}\times \mathit{\text{H}}\mathit{\text{N}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}\mathit{\text{P}}2\right)\times \frac{\mathit{\text{N}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{R}}\mathit{\text{P}}}+\mathit{\text{D}}\mathit{\text{P}}\mathit{\text{H}}\mathit{\text{S}}\mathit{\text{E}}\mathit{\text{G}}2+4\times \frac{\mathit{\text{D}}\mathit{\text{B}}\mathit{\text{T}}}{\mathit{\text{D}}\mathit{\text{T}}\mathit{\text{Q}}}\right)}$