LC823455

Low Power & High-Resolution Audio Processing System SoC for Portable Sound Solution LC823455 Description LC823455 is an audio processing System−on−Chip (SoC) for recording and playback, with High−Resolution 32−bit & 192 kHz audio processing capability that provides the key functions required for portable audio solutions. It has a Dual CPU configuration and a DSP providing intensive processing capability, 4316 KB of internal SRAM that supports the implementation of large-scale programs for WLAN applications, and multiple interfaces for increased extensibility. Its features an extensive range of functions including SBC/AAC codec and Active Noise Canceller by the DSP, UART and ASRC − applicable for wearable audio applications. The highly integrated implementation of this rich set of analog functions results in a miniature footprint with ultra− low power consumption. This, along with its high performance, makes the LC823455 suitable for portable audio markets such as Wireless headsets. This document describes features, basic functions, electrical specifications, characteristics, application diagrams and package dimension of this SoC. Features Ultra Low Power Consumption Arm® Cortex®−M3 Dual Core Proprietary 32−bit DSP Core (LPDSP32) Internal Large−Scale Size SRAM : 4316 KB (4MB + 220 KB) High−Resolution 32−bit & 192 kHz Audio Processing Capability Several DSP Codes Available for Audio Functions Hard−Wired Audio Functions Built−In: MP3 decoder, MP3 encoder, 6 band E...