网上最靠谱的赚钱方法

首頁 - 電子元器件 - ST(意法半導體) - 車用娛樂IC - CD伺服器

    產品名稱:CD伺服器

    ST 的 CD 伺服控制器能提供 CD 播放機所有前端功能的單芯片解決方案,包括馬達控制和處理激光頭信號來產生模擬和數字信號。
    針對汽車娛樂應用,STA1052 CD伺服控制器有以下的特點:
    ■播放功能
    ■音頻解碼
    ■內嵌 ARM7DMI 微控制器
    ■模擬前端
    ■數字伺服
    ■防震控制器
    ■數字接口
    网上最靠谱的赚钱方法 ■立體聲 DAC 端口

    STA1052
    Description
    The STA1052 is a single chip device which performs all functions related to read back of optical disk: servo control operations, reading optical disc decoding the High frequency signals, EFM decoding, error correction, software decoding of MP3 and WMA encoded audio, sample rate conversion, managing file system, serial transfer of audio/program through I2S/SPDIF, direct playback of audio through in-built audio DAC.
    It also performs software decoding of MP3, AAC and WMA encoded audio from USB or SD card? memory supports.
    Commands can be exchanged with the Host MCU either via one I2C port or two SPI ports.
    STA1052 chip comes along a broad software suite that comprehends different types of compressed audio files, File System Management, Play Lists.
    The key Media and File Types supported are briefly reported below:
    - Ability to play any USB/SD card compatible solid state memory media
    - MPEG1-Layer 2 compressed audio files
    - Playback of MP3 compressed audio files (all bit rates and VBR)
    - Playback of lower bit rate MPEG2 layer 3 files and MPEG-2.5 extension
    - Playback of WMA version 9 compressed audio files
    - Playback of iTunes AAC compressed audio files
    - Sample rate converter for recorded sampling rates other than 44.1kHz
    - Support FAT16/FAT32 file systems
    - Support ISO9660 and Joliet file systems
    The software can manage the following File Information: folder and file names.
    ID3 tag information - as per versions 1.0-1.1, 2.0 - 2.4 - is reported. Further parameters made available by ST software are: File type (i.e. .mp3, .wav, .wma, .cda, .aac), Bit rate, entire file path for current track and track elapsed time.
    STA1052 software provides the essential Navigation Commands: Previous/Next , Fast forward/Rewind, Jump to any file, Scan, Pause. All these commands can be programmed and configured via Command Protocol Interface.
    Two different types of Playlists are supported: Playlists with .pls extension, Playlists with .m3u extension.
    Robust software architecture provides an efficient error handling and related messaging.
    ST developed a software architecture that allows the patching of a few parts of software resident in ROM. Software patches are loaded into a very inexpensive serial Flash which provides the capability to patch up to 40 KByte of ROM software.
    Software build (patching) upgrade from media USB and SD card and from host MCU onto serial Flash is supported.
    STA1052 is intended for use in automotive entertainment system.

    Key Features
    CD-R, CD-RW playback
    Audio decoding (MP3,WMA,AAC)
    CLV (1x, 2x, 4x) and CAV mode (6x)
    On-chip USB-OTG host full speed
    3.3 V ±5 % operating supply range for I/O
    1.8 V ±5 % operating supply range for logic
    IDLE, WFI and STOP modes
    Power on reset / Brownout controller
    33.8688 MHz external quartz/resonator
    Operating temperature range: -40 °C to +85 °C
    Embedded ARM7TDMI microcontroller
    32 bit MCU with 3-stage pipeline @ 67 MHz
    384 KB internal ROM (4 Mb on package RAM for development version) and 128 KB RAM
    I2C master/slave (400 kHz) + 1 CRQ line
    Two high-speed UART full-duplex
    Two buffered SPI master/slave interface
    Analog Front-end part
    A, B, C, D, E, F voltage inputs
    Automatic gain and offset control
    ALPC circuit with integrated Power MOS
    8 bit 2 channels general purpose ADC
    Digital servo
    Automatic fine gain/balance/offset adjustment for tracking and focus
    Embedded 16 bit servo DSP (33.8688 MHz)
    PDM controls for focus, tracking, spindle, sledge
    Embedded stepping sledge motor controller
    CLV & CAV spindle control
    Acquisition
    Full range adjustment-free digital PLL
    EFM demodulation and synchronization
    Q subcode and CD text decoder
    Error correction
    CIRC, capable of dual C1, quad C2 erasure
    RSPC capable of C3 corrections
    Jitter absorbing capacity ±24 frames (CLV)
    Shock-proof controller
    Up to 64 Mbit external SDRAM interface
    8/16 bit data bus interface
    ADPCM (4:1) lossy compression for extended shock proof capability
    Audio features
    Two I2S transmitters and one I2S receiver
    SPDIF transmitter (IEC958) and receiver
    Sample-rate conversion from 8 kHz - 48 kHz input to 44.1 kHz output
    Digital equalizer for bass/treble control
    Built-in stereo DAC
    Development environment
    5 pin JTAG port (IEEE 1149.1 standard)

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