The CS42432 is a highly integrated audio codec featuring advanced multichannel surround sound performance for entry- and mid-level audio products. This IC includes four single-ended or differential inputs and six single-ended or differential outputs. An auxiliary serial input is available for an additional two channels of PCM (pulse code modulation) data. This IC features six D/A converters that support sample rates up to 192 kHz and provide a dynamic range of up to 108 dB. Each DAC channel provides digital volume control and can operate with differential or single-ended outputs. The four A/D converters also support sample rates up to 192 kHz and provide a dynamic range of up to 105 dB. Digital volume control is provided for each A/D converter, with selectable overflow detection. All of the on-chip converters utilize multi-bit Delta-Sigma modulators to lower out-of-band noise and improve performance. Also included are separate control port and serial port supplies for a glueless interface to DSPs.



Multi-channel Codecs


  • Four 24-bit A/D converters and six 24-bit D/A converters
  • System sampling rates up to 192 kHz
  • A/D converter dynamic range
    • 105 dB differential
    • 102 dB single-ended
  • D/A converter dynamic range
    • 108 dB differential
    • 105 dB single-ended
  • THD+N (A/D and D/A converters)
    • -98 dB differential
    • -95 dB single-ended
  • A/D input mux – single-ended mode
  • Programmable A/D converter high-pass filter for DC offset calibration
  • Compatible with industry-standard TDM serial interface
  • Auxiliary input source for additional external A/D or S/PDIF receiver
  • Logarithmic digital volume control
  • I²C/SPI host control port
  • Support for logic levels between 1.8 V and 5 V
  • 3.3 V or 5 V analog power supply
  • 3.3 V digital supply
  • Package: 52-pin MQFP; lead-free assembly
  • Consumer and automotive D-grade availability

Parametric Specifications

Discontinued Product

Technical Documents

CS42432 Product Data Sheet

Apr 14, 2017, DS673F5 : 2088 Kb

CS424xx Product Bulletin

Oct 27, 2008, 0142-1008-PB : 246 Kb


Comprehensive Solutions