CX20703

Audio Speakers-on-a-Chip Speakers-on-a-Chip with On-Chip Voice/Audio DSP, Integrated I2S/I2C Codec, and PWM Class-D Amplifier CX20703 Conexant’s portfolio includes a comprehensive suite of semiconductor solutions for communications and consumer applications. The CX20703 is one of Conexant’s Speakers-on-a-Chip (SPoC) solutions with the proprietary on-chip Digital Signal Processor (DSP), Codec, Class-D/PWM (Pulse-Width Modulator) driver, and I2S and I2C interfaces in a cost-effective single-chip package. The solution features a suite of turnkey audio and voice enhancement algorithms designed for applications such as Mobile Internet Device, Multimedia IP Phone, Portable Navigation Device, Portable Media Player, and Intercom Systems. The CX20703 offers multiple digital data and control I/O for flexible peripheral or MCU/MPU connectivity. The device features one 4-wire and one 5-wire digital audio interface that can be mixed or multiplexed to support dual bi-directional I2S, Pulse Code Modulation (PCM), S/PDIF-out with independent sampling rates. The device can be controlled and configured by both read and write capability through I2C and Serial Peripheral Interface (SPI). The device integrates three high-performance 102 dB SNR, 24 bit DACs for stereo speaker output, capless headphone output, and single-ended/differential line-output. The analog input paths feature four high-performance 24-bit ADCs supporting mono or array-microphones, and Auxiliary stereo line-inputs. Different ...