مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

• Encoders: MP3; Ogg Vorbis; PCM; IMA ADPCM; G.711 (μ-law, A-law); G.722 ADPCM
• Decoders: MP3 (MPEG 1 & 2 audio layer III (CBR +VBR +ABR)); MP2 (layer II) (optional); MPEG4/2 AAC-LC(+PNS), HE-AAC v2 (Level 3) (SBR + PS); Ogg Vorbis; FLAC; WMA 4.0/4.1/7/8/9 all profiles (5-384 kbps); WAV (PCM, IMA ADPCM, G.711 μ-law/A-law, G.722 ADPCM)
• Full Duplex Codecs with optional AEC: PCM; G.711 (μ-law, A-law); G.722 ADPCM; IMA ADPCM
• Streaming support
• Up to 96 KiB RAM for user code / data
• Quiet power-on and power-off
• I2S output interface for external DAC
• Serial control and data interfaces
• Can be used either as a slave co-processor or as a standalone processor
• UART for debugging purposes
• New functions may be added with software and up to 12 GPIO pins VS1063a is an easy-to-use, versatile encoder, decoder and codec for a multitude of audio formats. VS1063a contains a high-performance, proprietary low-power DSP core VS_DSP^4, ROM memories, 16 KiB instruction RAM and up to 80 KiB data RAM for user applications running simultaneously with any built-in decoder, serial control and input data interfaces, up to 12 general purpose I/O pins, a UART, as well as a high-quality stereo ADC, and a variable-sample-rate stereo DAC, followed by an ear-phone amplifier and a common voltage buffer. VS1063a can act both as an "MP3 decoder IC" or "MP3 encoder IC" slave in a system with a microcontroller, or as a stand-alone circuit that boots from external SPI memory. VS1063a is a pin-compatible alternative for VLSI Solution's VS1053. It has all the functionality of VS1053 except MP1 and MIDI decoding) and many new features, particularly MP3 and Ogg Vorbis recording. Also full-duplex codec functions for phone applications have been added to VS1063a. There are three variants of VS1063a: the fullfeatured VS1063a, VS1163a without an MP3 encoder, and VS8063a without any MP3 functionality.

Features

• EarSpeaker Spatial Processing
• Bass & treble controls
• Alternatively a 5-channel equalizer
• AD Mixer allows monitoring A/D converter input while listening to stream
• PCM Mixer allows inserting a sidestream while listening to main stream
• Adjustable Speed Shifter
• Operates with a single 12... 13 MHz or 24... 26 MHz clock
• Internal PLL clock multiplier
• Low-power operation
• High-quality on-chip stereo DAC with no phase error between channels
• Zero-cross detection for smooth volume change
• Stereo earphone driver capable of driving a 30Ω load
• Separate voltages for analog, digital, I/O
• Lead-free RoHS-compliant package

Applications

• MP3-recording audio player
• Streaming server and client
• Wireless audio transfer
• Standalone player and recorder
• Internet phones