The CS42448 is a highly integrated audio codec that is engineered to simplify design for home theaters and automotive audio systems. This codec allows system designers to deliver advanced multichannel surround-sound performance for entry- and mid-level audio products.
The CS42448 allows up to eight single-ended or six differential audio input sources to be incorporated 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.
CS42448 outputs feature Cirrus Logic’s patented Popguard technology to eliminate power-cycling clicks and pops. Popguard enhances the audio while simplifying system design and reducing the bill-of-material (BOM) costs.
The CS42448 delivers advanced performance, design flexibility, a reduction in BOM costs and a competitive price-point. This IC 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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| Part | Resolution (bits) | Dynamic Range (dB) | THD+N (dB) | Sample Rate (kHz) | Analog I/O | Power Supply (V) | Type | Comments |  Package |
|---|---|---|---|---|---|---|---|---|---|
| CS42448 | 24 | 105 / 108 DACs; 102 / 105 ADCs |
-95 / -98 DACs; -95 / -98 ADCs |
192 | Single-ended or Differential DACs and ADCs | VA = 3.3 or 5; VD = 3.3; VL = 1.8 to 5 |
Multi-Channel | Multi-Channel CODEC, 8 DACs, 6 ADCs, TDM and Normal I/F | 64 LQFP |
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