TDA9820

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.

Applications

• Cellular phones
• Cordless phones
• RF LANs
• Test and measurement
• Military radio
• VHF/UHF mobile radio
• VHF/UHF hand-held radio

Block diagrams/pinning

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