SA9102C
The formula for calculating the output frequency (f) is given below:
FOSC
II . IV
11.16
f =
FOUTX
*
*
*
2
3.58MHz
IR
Where FOUTX = Nominall rated frequency (4Hz or 1160Hz)
FOSC
= Oscillator frequency (2MHz ...... 4MHz)
= Input currents for current input (16µA at rated)
= Input current for voltage input (14µA at rated)
= Reference current (typically 50µA)
II
IV
IR
XTAL is a colour burst TV crystal (f = 3.5795MHz) for the oscillator. The oscillator
frequency is divided down to 1.7897MHz on-chip to supply the digital circuitry and the
A/D converters.
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