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Sample Rate Converter
AK4122A
96kHz Asynchronous Sample Rate Converter with PLL and DIR
The AK4122A is a digital sample rate converter (SRC) with the digital audio receiver (DIR). The input sample rate ranges from 8kHz to 96kHz. The output sample rate is 32kHz, 44.1kHz, 48kHz or 96kHz. By using the AK4122A, the system can take very simple configuration because the AK4122A has an internal PLL and does not need any master clock at slave mode. Then the AK4122A is suitable for the application interfacing to different sample rates such as Car Audios and DVD recorders.

AK4122A
  • Applications: DVD Recorders, AV Receivers, PC’s and Electronic Musical Instruments
  • SRC
    Asynchronous Sample Rate Converter
    Input Sample Rate Range (fsi): 8kHz ~ 96kHz
    Output Sample Rate (fso): 32kHz, 44.1kHz, 48kHz, 96kHz
    Input to Output Sample Rate Ratio : 0.33 to 6
    THD+N: -113dB
    I/F format: MSB justified, LSB justified (16/24bit) and I2S compatible
    Clock for Master mode: 256/384/512/768fs
    SRC Bypass mode
    Soft Mute Function
  • DIR
    4-Channel Inputs Selector & 1-Channel Through Output
    AES3, IEC60958, S/PDIF, EIAJ CP1201 Compatible
    Low Jitter Analog PLL
    PLL Lock Range : 32kHz ~ 96kHz
    Auto detection
    • - Non-PCM Bit Stream
    - DTS-CD Bit Stream
    - Validity Flag
    - Sampling Frequency (32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz)
    - Unlock & Parity Error
    - DAT Start ID
    40-bit Channel Status Buffer
    Burst Preamble bit Pc, Pd Buffer for Non-PCM bit streams
    Q-subcode Buffer for CD bit streams
  • 4-wire Serial µP Interface
  • Power Supply
    AVDD: 3.0 ~ 3.6V (typ. 3.3V)
    DVDD: 3.0 ~ 3.6V (typ. 3.3V)
  • Ta = -10 ~ 70°C
  • Package: 48pin LQFP
  • Evaluation Board: AKD4122A
PDF
Download		 PDF Data Sheets
Rev. MS1076-E-00 2009/05
PDF : 416KB / 54pages 		  PDF Evaluation Board Manual
Rev. KM099400 2009/03
PDF : 959KB / 37pages
AK4122A BLOCK DIAGRAM

AK4122A BLOCK DIAGRAM
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