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TI(德州仪器) PCM1803A
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  • TI(德州仪器) PCM1803A
  • TI(德州仪器) PCM1803A
  • TI(德州仪器) PCM1803A
  • TI(德州仪器) PCM1803A
  • TI(德州仪器) PCM1803A
  • TI(德州仪器) PCM1803A
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PCM1803A

PCM1803A

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具有单端输入的 103dB SNR 立体声模数转换器 (ADC)

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The PCM1803A device is high-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input. The PCM1803A uses a delta-sigma modulator with 64- and 128-times oversampling, and includes a digital decimation filter and high-pass filter, which removes the DC component of the input signal. For various applications, the PCM1803A supports master and slave modes and four data formats in serial interface. The PCM1803A is suitable for a wide variety of cost-sensitive consumer applications where good performance and operation from a 5-V analog supply and 3.3-V digital supply are required. The PCM1803A is fabricated using a highly-advanced CMOS process and is available in a small 20-pin SSOP package.

  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64, ×128
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)
  • High-Performance:
    • THD+N: –95 dB (Typically)
    • SNR: 103 dB (Typically)
    • Dynamic Range: 103 dB (Typically)
  • PCM Audio Interface:
    • Master or Slave Mode Selectable
    • Data Formats:
      • 24-Bit Left-Justified
      • 24-Bit I2S
      • 20-, 24-Bit Right-Justified
  • Sampling Rate: 16 kHz to 96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS, 768 fS
  • Dual Power Supplies: 5 V for Analog, 3.3 V for Digital
  • Package: 20-Pin SSOP
Number of ADC channels2
Analog inputs2
Digital audio interfaceI2S, L, R
Control interfaceH/W
Sampling rate (max) (kHz)96
ADC SNR (typ) (dB)103
RatingCatalog
Analog outputs0
Operating temperature range (°C)-40 to 85
SSOP (DB)2056.16 mm² 7.2 x 7.8
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