Conexant CX20709 SPOC扬声器驱动解决方案

Conexant公司的CX20709是片上扬声器(SPoC)解决方案,集成了有有所有权的DSP,CODEC,D类驱动器,以及I2S,I2C和USB接口,具有音频和语音增强算法,能把音频娱乐和语音通信融合在一起,主要用在全合一的扬声器系统,LCD显示器,家庭自动化/通信,WiFi 手机,MID, 手持导航,手持媒体播放器,嵌入式应用,多媒体IP电话等.本文介绍了CX20709主要特性, 接口方框图, 应用示意图以及CX20709-EVK 评估板主要特性.
CX20709 Speakers-on-a-Chip with On-chip Voice/Audio DSP, Integrated I2S/I2C/USB Codec, and Class-D Amplifier
Cost-effective single-chip solution enables superior audio and voice quality
The CX20709 is one of Conexant’s Speakers-on-a-Chip (SPoC) solutions with the proprietary on-chip Digital Signal Processor (DSP), Codec, Class-D driver, and I2S, I2C, USB interfaces in a cost-effective single-chip package. The solution features a suite of turnkey audio and voice enhancement algorithms designed for convergence audio entertainment and voice communication applications, such as All-In-One Speakers/Docking systems, Portable Multimedia/Navigation Devices, Smart Home Intercom System, and Unified Communication Peripherals. This product is part of the CX2070x SPoC family, which includes CX20702, CX20703, CX20704, CX20705, CX20706 and CX20707.
The device features multiple high performance 24-bit DACs for 2.1CH speaker output, multiple 24-bit high performance ADCs supporting mono or array microphones and up to three stereo line inputs, capless headphone output, support for dual bi-directional 12S, PCM, S/PDIF-out with independent sampling rates, and a range of digital and analog input/output channel selections for flexible routing and mixing. Different audio sampling rates ranging from 8 kHz to 96 kHz are generated directly from the master clock without the need for external PLL. The power-efficient Class-D amplifier drives a maximum of 2.5 W (average) stereo from the integrated amplifier. The device can be controlled and configured by both read and write capability through I2C and Serial Peripheral Interfa...