108 dB, 192 kHz 4-in, 8-out Surround-Sound Codec TDM Only
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.
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Technologies
Features
- 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
| DACs | 8 |
| ADCs | 4 |
| DAC Dynamic Range (dB) | 108 |
| ADC Dynamic Range (dB) | 105 |
| DAC THD+N (dB) | -98 |
| ADC THD+N (dB) | -98 |
| Sample Rate (kHz) | 4-192 (DAC); 96 (ADC) |
| Analog Power Supply (V) | 3.3-5 |
| Digital Power Supply (V) | 3.3 |
| Logic Power Supply (V) | 1.8-5 |
| Operational Power Consumption (mW) | 600-850 |
| Package | 52 MQFP |
