Conexant Introduces High Performance, Low Power Digital Audio Processor CX20805
21ic News Corp. has introduced the new dual-core 32-bit, high-performance, low-power digital audio processor CX20805 for the most demanding audio applications. With integrated Hi-Speed ​​USB 2.0 interfaces and other key audio interfaces with advanced power management and a high-performance 800 MIPS digital signal processor (DSP), Conexant offers the broadest range of audio solutions in the industry. The new chip is equipped with an efficient C compiler, numerous software tools, and a set of DSP algorithms. The CX20805 is based on the Conexant Audio Processing Engine (CAPE) architecture, which provides a good foundation for the company's future audio chip innovation. This article refers to the address: http:// In the past, the audio performance of consumer electronics devices needed to be low cost and lost. As consumer expectations for audio quality increase and audio algorithms and hardware improve, the accuracy and high definition of sound quality has become a key task for today's consumer electronics. With the CX20805, Conexant provides designers with greater flexibility, greater performance and greater power efficiency to help them meet new challenges from audio. In addition to providing customers and partners with a powerful new chip with a fully open programmable environment, Conexant offers the widest range of applications by integrating an analog mixed-signal codec and application-specific software DSP algorithms. s solution. Conexant has a long history and expertise in mixed-signal, system-on-chip, firmware, software and system development experience, and is a well-deserved candidate for introducing this audio infrastructure to the market. Dr. Sailesh Chittipeddi, President and CEO of Conexant Systems, said: "This new infrastructure combines a 32-bit DSP core, advanced power management and high I/O, and is the first in the audio industry. We are not only satisfied. The market demands for customizable platforms and brings a complete solution that integrates the best analog devices and software algorithms." Will Strauss, president of market analysis firm Forward Concepts, said: "I am impressed with the computing power of Conexant's new DSP infrastructure, high audio-centric I/O and complete power management. The market is for high-performance audio processing. The demand will continue to grow, and the CX20805 architecture is sure to be favored." The main features include: Samples are available in a 9x9 small, 116-pin, dual-row QFN package. EVK was offered to qualified users and partners in March 2012 and is priced at $5.50 per 10,000.
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• A dual-core 32-bit DSP, each core including dual MACs running at 200 MHz
• Large embedded memory, including 520KB SRAM and 352 KB ROM
• One Hi-Speed ​​USB 2.0 device supporting up to 8 terminals • Full dual-channel stereo I2S multiplexed with a four-channel PCM interface • I2C master mode and slave mode • SPI master mode and slave mode • Four-channel digital microphone with Pulse Density Modulation Support • SPDIF RX and TX
• Tri-color PWM LED driver • 24 flexible and fully programmable I/O
• Custom audio bus for multi-channel audio devices • Programmable PLL
• AES 128 decoding engine • Advanced debug performance such as on-chip logic analyzer and JTAG
• Dedicated peripherals and memory card to memory card DMA channel • UART
• Integrated advanced low-power technology such as DCDC conversion, power gating, power reserve, dynamic high-voltage scaling, and frequency scaling to further reduce power consumption