SAA7157 - Clock signal generator circuit for digital TV systems SCGC

Description

The SAA7157 generates all clock signals required for a digital TV system suitable for the SAA715x family and the SAA7199B (DENC).

The circuit operates in either the phase-locked loop mode (PLL) or voltage controlled oscillator mode (VCO).

Features

• Clock generation suitable for digital TV systems (line-locked).
• PLL frequency multiplier to generate 4 times of input frequency SAA7157.
• Dividers to generate clocks LL1.5A, LL1.5B, LL3A and LL3B (4th and 2nd multiples of input frequency).
• PLL mode or VCO mode selectable.
• Reset control and power fail detection.
• Suitable for.