GENERAL DESCRIPTION

The SAA7197 generates all clock signals required for a digital TV system suitable for the SAA719x family. The circuit operates in either the phase-locked loop mode (PLL) or voltage controlled oscillator mode (VCO).

FEATURES

• Suitable for Desktop Video systems

• Two different sync sources selectable

• PLL frequency multiplier to generate 4 times of input frequency

• Dividers to generate clocks LLCA, LLCB, LLC2A and LLC2B (2nd and 4th multiples of input frequency)

• PLL mode or VCO mode selectable

• Reset control and power fail detection