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The CS4222 is a highly integrated, high performance, 20-bit, audio CODEC providing stereo A/D and stereo D/A converters using Delta-Sigma conversion techniques. The device operates from a single 5V power supply and features low power consumption and a selectable de-emphasis filter for 32, 44.1, and 48 kHz sample rates. The CS4222 also includes an analog volume control capable of 113.5 dB attenuation in 0.5 dB resolution. The analog volume control architecture preserves dynamic range during attenuation. Volume control changes are implemented using a "soft" ramping or zero crossing technique. Applications include reverb processors, musical instruments, DAT, and multitrack recorders.
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