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The U2861B is an alignment-free FM sound IF demodulator for all TV standards from 4.5 MHz up to 6.5 MHz (standard M, N, B/G, I, D/K). The circuit includes two switchable audio inputs and volume control. With a supply voltage of 5 V, the U2861B is suitable for TV, VCR and Multimedia applications.
*) equivalent to discharge a 200-pF capacitor through a 0- resistor
U2861B Features
· Completely alignment-free · PLL demodulator for FM intercarrier sound IF signals (mono) · Two audio switches · Very few external components · Volume control by DC voltage · Supply voltage: 5 V; low power consumption