Introduced to specifically meet the needs of automotive audio platforms, the CS42435 audio codec incorporates features such as a flexible power supply, level translators and digital integration. This IC simplifies the designers’ job, allowing them to deliver advanced multichannel surround-sound performance for entry- and mid-level audio products, all in a single 52-pin LQFP package. The CS42435 allows up to four single ended or differential-audio input sources and up to eight single-ended or differential output sources. This high level of integration eliminates the need for external analog-to digital (A/D) converters to pass multiple audio channels to a DSP chip for audio processing. An auxiliary serial input is available for an additional two channels of PCM (pulse code modulation) data. The increased input capability enables audio/video (A/V) receivers that receive audio from several sources. In an automotive entertainment system, the audio input sources could include in-car navigation systems, mobile phones, CD/DVD players as well as the radio tuner. The CS42435 delivers advanced performance, design flexibility, a reduction in BOM costs and competitive price-points. This product is ideal for audio applications such as A/V receivers, DVD receivers and automotive audio systems, applications that require wide dynamic range, negligible distortion and low noise.



Multi-channel Codecs


  • Four 24-bit A/D converters and eight 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
  • Support for logic levels between 1.8 V and 5 V
  • Package: 52-pin MQFP; lead-free assembly
  • Consumer and automotive D-grade availability

Parametric Specifications

Discontinued Product

Technical Documents

CS42435 Product Data Sheet

Apr 14, 2017, DS685F5 : 2087 Kb

CS424xx Product Bulletin

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


Comprehensive Solutions