GENERAL DESCRIPTION
The TDA9820 is a monolithic, integrated, multistandard TV FM intercarrier sound demodulator for all FM standards. The circuit contains two separate FM demodulators using Phase Locked Loop (PLL) reference frequency generation. The circuit requires a minimum number of external components.

FEATURES
• Multistandard application for sound standards M, B/G, I and D/K
• Two alignment-free PLL FM demodulators
• Four-input source selector for one of the two FM demodulators
• Automatic second sound carrier mute
• Mono and dual channel application
• Low power consumption
• Few external components required.