105 dB Codecs with Volume Control

The CS4223 and CS4224 are highly integrated, high-performance, 24-bit audio codecs that provide stereo analog-to-digital (A/D) and stereo digital-to-analog (D/A) converters that use Delta-Sigma conversion techniques. Operating from a single 5 V power supply, the CS4223/24 devices are notable for their low power consumption. A selectable de-emphasis filter for 32 kHz, 44.1 kHz, and 48 kHz sample rates is also included. The CS4224 includes an analog volume control capable of 113.5 dB attenuation in 0.5 dB steps. 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 digital effects processors, DAT (digital audio tape), and multitrack recorders.

Technology

Mono/Stereo Codecs

Features

  • 105 dB dynamic range A/D converters
  • 105 dB dynamic range D/A converters
  • 110 dB D/A converter signal-to-noise ratio (EIAJ)
  • Analog volume control (CS4224 only)
  • Differential inputs/outputs
  • On-chip anti-aliasing and output smoothing filters
  • De-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
  • Supports master and slave modes
  • On-chip crystal oscillator
  • 3 V to 5 V digital interface
  • Single 5 V power supply
  • Package: 28-pin SSOP

Parametric Specifications

Not Recommended for New Designs
Recommended Replacement: CS4270, CS4271

Technical Documents

CS4223/24 Product Data Sheet

Jan 1, 2003, DS290F1 : 762 Kb

Errata: CS4220/21/23/24 Data Sheet

Jun 1, 2001, ER284B2 : 21 Kb

CS4223/24 Product Bulletin

Oct 1, 1998, PI290PP1 : 278 Kb

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