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AK8133
用于音频的低杂散多时钟发生器
Low Spurious Multi-Clock Generator for Audio
The AK8133 is a very low jitter multi-clock generator designed for high quality digital audio and video applications. The AK8133 generates common digital audio system clocks based on series of 256fs or 384fs of 44.1kHz, 48KHz, or 32kHz from a 27MHz crystal oscillator or external 27MHz clock input. The built-in PLLs are using AKEMD’s advanced clock technology to offer low clock jitter in not only period but also long-term, which enable digital audio converters (ADC or/and DAC) really to achieve their high analog performance in wide frequency range. The AK8133 is an ideal clock device for 27MHz base digital AV applications requiring high sound quality.
Features
  1. 27MHz Crystal Input or External Input
  2. Four Frequency-Selectable Clock Outputs
  3. One 27MHz-Reference Output
  4. Generated Audio System Clocks from four clock outputs:
    ·CLK1: 24.576; 36.864MHz
    ·CLK2: 4.096; 8.192; 11.2896; 12.288; 16.384; 22.5792;
                 24,576; 49.152MHz
    ·CLK3: 8.4672; 12.288; 16.9344; 18.432; 24.576; 33.8688;
                 36.864; 73.728 MHz
    ·CLK4: 16.9344; 33.8688MHz
  5. Built-in XO
  6. Low Jitter Performance
    ·Period Jitter: 30 psec (Typ.)
    ·Long-term Jitter (1000 cycles): 60 psec (Typ.)
  7. Low Current Consumption: 18.0mA (Typ.) at 3.3V
  8. Supply Voltage: 2.85V to 3.6V
  9. Operating Temperature Range: -40° C to +85° C (AK8133V)
  10. Package: 16-pin SSOP (Lead free)
Block Diagram
ak8133_blockdiagram
Applications
  1. Blu-ray Players, DVD Players/Recorders
  2. Home Theaters, AV Receivers
  3. Set-top-boxes, Digital TVs
  4. Karaoke Systems, Multi-Media PCs
Further Information


Data Sheet Download Datasheet
AK8133
March 2008


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