Audio Codec 2ADC / 2DAC 20-Bit 28-Pin SSOP T/R

The CS4222 is a highly integrated, high performance, 20-bit, audio codec providing stereo analog-to-digital and stereo digital-to-analog converters using delta-sigma conversion techniques. The device operates from a single +5 V power supply, and features low power consumption. Selectable de-emphasis filter for 32, 44.1, and 48 kHz sample rates is also included. 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.

• 99 dB 20-bit A/D Converters
• 99 dB 20-bit D/A Converters
• 110 dB DAC Signal-to-Noise Ratio (EIAJ)
• Analog Volume Control
  • 0.5 dB Step Resolution
  • 113.5 dB Attenuation
• l Soft Mute Capability
• Differential Inputs/Outputs
• On-chip Anti-aliasing and Output Smoothing Filters
• De-emphasis for 32, 44.1 and 48 kHz
• Stand-Alone or Control Port Mode
• Single +5 V power supply