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HT91808
　
The HT91808 device is a high-performance, low-cost, single-chip, stereo analog-to-digital converter with single-ended analog voltage input. The HT91808 device uses a delta-sigma modulator with 64-times oversampling and includes a digital decimation filter and high-pass filter that removes the dc component of the input signal. For various applications, the HT91808 device supports master and slave mode and two data formats in serial audio interface.The device is available in TSSOP14 package.
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结构特征
  • 24Bit Delta-Sigma Stereo ADC
  • Single-Ended Voltage Input: 3 Vp-p
  • High PerformanceTHD+N: -90dB (Typical)SNR: 99dB (Typical)

     Dynamic Range: 99dB (Typical)

  • Flexible PCM Audio InterfaceMaster- or Slave-Mode Selectable

    Data Formats: 24Bit I2S, 24Bit Left-Justified

  • Power Down and Reset by Halting System Clock
  • Analog Antialias LPF Included
  • Sampling Rate: 8 kHz–96 kHz

  • System Clock: 256 fS, 384 fS, 512 fS

  • Resolution: 24 Bits
  • Dual Power Supplies5V for Analog3.3V for Digital
  • TSSOP14 Package


应用领域
  • DVD Recorder
  • Digital TV
  • AV Amplifier or Receiver
  • MD Player
  • CD Recorder
  • Multitrack Receiver
  • Electric Musical Instrument   


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[1] I: input   O: output         G: GND     P: Power[2] Schmitt-trigger input, 5V tolerant[3] Schmitt-trigger input with internal pulldown (100-kΩ, typical)[4] Schmitt-trigger input with internal pulldown (100-kΩ, typical), 5V tolerant


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