ADAU1466 DSP + CS42448 DAC 14-IN 18-OUT DSP Processor Multi-channel Audio Signal Processor SPDIF + USBi Interface

ADAU1466 DSP + CS42448 DAC 14-IN 18-OUT DSP Processor Multi-channel Audio Signal Processor SPDIF + USBi Interface

Description:
- ADI's SS series DSP ADAU1466/ADAU1452 (optional) are used as the main control, two CS42448 are used as 6-channel analog-to-digital conversion ADC, 8-channel digital-to-analog conversion DAC, plus the SPDIF input and output interface of the DSP itself, forming a DSP module with 14 channels input and 18 channels output, which can be used as a multi-channel audio signal processing for car audio modification or home theater processing. Support electronic frequency division adjustment, noise reduction, compression, delay, virtual surround and other audio processing. Providing complete routines suitable for system engineering, including input and output interface configuration/clock configuration and general configuration. You can add more functions and effects you need.

- The CS42448 is a highly integrated audio decoder designed to simplify the design of home theater and car audio systems. System designers can use this decoder to deliver advanced multi-channel surround sound performance to entry-level and mid-level audio products. The CS42448 supports the addition of up to eight single-ended or six differential audio input sources, and up to eight single-ended or differential output sources. Highly integrated, multiple audio channels can be transferred to the DSP chip without external analog-to-digital (A/D) converters for audio processing. An auxiliary serial input is available for two additional PCM (Pulse Code Modulation) data channels. The inputs are more powerful, enabling audio/video (A/V) receivers that can receive audio from multiple sources. In car entertainment systems, audio input sources can include in-car navigation systems, mobile phones, CD/DVD players, and radio tuners. The CS42448 outputs adopting for Cirrus Logic's patented Popguard technology, which eliminates clicks and pops caused by power switching. For Popguard enhances audio while simplifying system design and reducing bill of materials (BOM) costs. The CS42448 offers advanced performance, design flexibility, reduced BOM cost, and a competitive retail price. This IC is ideal for audio applications requiring wide dynamic range, negligible distortion and low noise, such as A/V receivers, DVD receivers and car audio systems.

Highlights:
- Wide range of compatibility: designed for professional audio equipment, this chip is compatible with car audio systems and digital-to-analog converters.
- Comprehensive audio input/output capabilities: features 4 serial input ports, 4 serial output ports, and 48 channels for extensive audio I/O and routing flexibility.
- High-performance core for SigmaDSP: equipped with a 294.912MHz, 32-bit core for SigmaDSP core, this chip offers low latency and active noise cancellation for superior audio processing.
- Versatile clock configuration: offers a flexible clock generator for master clock generation from crystal, ensuring precise audio timing.
- Advanced audio processing algorithms: includes an echo canceler and noise reduction algorithm, as well as a surround sound ECNR, for superior audio enhancement.

CS42448 Features:
- Six 24-bit A/D converters and eight 24-bit D/A converters system
- System sampling frequencies up to 192kHz
- Analog-to-digital converter dynamic range: 105dB differential; 102dB single-ended
- Digital-to-analog converter dynamic range: 108dB differential; 105dB single-ended
- THD+N (analog-to-digital converter and digital-to-analog converter): -98dB differential; -95dB single-ended

Analog/Digital input multiplexer – Single-ended mode:
- Adopting for Cirrus Logic Popguard technology to minimize clicks and pops
- Programmable A/D converter high-pass filter for DC offset calibration
- Supports logic levels from 1.8V to 5V
- Package: 64-pin LQFP; lead-free assembly

ADAU1466 Features:
- Compliant with automotive application requirements
- High-performance core for SigmaDSP supports low latency and active noise cancellation
- (ANC) active noise cancellation
- Echo canceler and noise reduction (ECNR)
- Surround sound algorithm
- Equipped with a dedicated graphical integrated development environment (IDE) for SigmaStudio, suitable for developing custom signal flows
- Comprehensive toolbox of predefined building blocks
- Reduce design time with proven solutions Intuitive system design
- 294.912 MHz, 32-bit core for SigmaDSP, voltage 1.2V
- 24Kbyte program memory
- 80K words parameter/data RAM
- 6144 SIMD instructions per sample at 48kHz
- Digital audio delay 1600ms at 48kHz

Audio I/O and Routing:
- 4 serial input ports, 4 serial output ports
- 48 channels, 32-bit digital I/O, sampling rate up to 192kHz
- Flexible configuration of I2S, left and right justified and up to 16-channel TDM format on serial data pins
- 8 stereo ASRC, ratio between 1:8 and 7.75:1, dynamic range is 139 dB at 192kHz
- Stereo S/PDIF input and output
- 4 PDM microphone input channels
- Multi-channel, byte addressed TDM serial port
- A clock oscillator used for generating a master clock from a crystal
- Integer PLL and flexible clock generator
- Integrated bare chip temperature sensor
- I2C and SPI control interfaces (including master and slave)
- Independent operation
- Self boot from serial EEPROM
- 6-channel, 10-bit SAR auxiliary control ADC
- 14 multi-purpose pins for digital control and output
- On-chip voltage regulator for generating 1.2V from 1.8V to 3.3V supplies
- 72-pin, 10mmx10mm LFCSP package with 5.3mm exposed pad
- Operating temperature range: -40°C to +105°C

The ADAU1462/ADAU1466 are audio processors qualified for automotive applications, with digital signal processing capabilities far exceeding those of earlier devices for SigmaDSP. They are pin and register compatible with each other and with the ADAU1450/ADAU1451/ADAU1452 processors for SigmaDSP. The hardware architecture has been reorganized and optimized to achieve efficient audio processing. Audio processing algorithms support a seamless combination of application streaming (per-sample), multi-rate processing and block processing modes. Through the graphical programming tool for SigmaStudio, you can create intuitive, interactive and powerful signal processing flows. The enhanced digital signal processor (DSP) core architecture significantly improves code efficiency by requiring significantly fewer instructions to execute certain types of audio processing algorithms compared to previous generations for SigmaDSP.

Package Included:
- 1 x DSP Processor