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TI(德州仪器) PCM1680
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  • TI(德州仪器) PCM1680
  • TI(德州仪器) PCM1680
  • TI(德州仪器) PCM1680
  • TI(德州仪器) PCM1680
  • TI(德州仪器) PCM1680
  • TI(德州仪器) PCM1680
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PCM1680

PCM1680

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SNR 为 105dB 的 8 通道音频 DAC

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The PCM1680 is a CMOS, monolithic integrated circuit which features eight 24-bit audio digital-to-analog converters (DACs) and support circuitry in a small SSOP-28. The DACs use TI's enhanced multilevel delta-sigma (%#x394;) architecture to achieve excellent signal-to-noise performance and a high tolerance to clock jitter.

The PCM1680 accepts industry-standard audio data formats with 16-bit to 24-bit audio data. Sampling rates up to 200 kHz are supported. The PCM1680 provides a full set of user-programmable functions through a serial control port, using an SPI or I2C interface.

  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 105 dB Typical
    • SNR: 105 dB Typical
    • THD+N: 0.002% Typical
    • Full-Scale Output: 3.9 VPP Typical
  • 4x/8x Oversampling Interpolation Filter:
    • Stop-Band Attenuation: -50 dB
    • Passband Ripple: ±0.04 dB
  • Sampling Frequency: 5 kHz to 200 kHz
  • System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, or 1152 fS with Autodetect
  • Zero Flags for Selectable Channel Combinations
  • Serial Port (SPI/I2C) for Mode Control
  • User-Programmable Functions:
    • Flexible Audio Data Formats
      • Right-Justified, I2S, and Left-Justified
      • 16-, 18-, 20-, and 24-Bit Audio Data
    • Digital Attenuation: Mode Selectable
      • 0 dB to -63 dB, 0.5-dB/step
      • 0 dB to -100 dB, 1-dB/step
    • Soft Mute
    • Digital De-Emphasis
    • Digital Filter Roll-Off: Sharp or Slow
  • Single Power-Supply Operation: 5-V Analog, 5-V Digital
  • Package: SSOP-28 (150 mil)
  • Pin-Compatible with PCM1780
  • APPLICATIONS
    • Integrated A/V Receivers
    • DVD Movie and Audio Players
    • HDTV Receivers
    • Car Audio Systems
    • DVD Add-On Cards for High-End PCs
    • Digital Audio Workstations
    • Other Multichannel Audio Systems

System Two, Audio Precision are trademarks of Audio Precision, Inc.
SPI is a trademark of Motorola.
I2C, I2S are trademarks of NXP Semiconductors.

Number of DAC channels8
Analog inputs0
Analog outputs8
DAC SNR (typ) (dB)105
Sampling rate (max) (kHz)192
Control interfaceI2C, SPI
Resolution (Bits)24
ArchitectureDelta-Sigma
Operating temperature range (°C)-25 to 70
RatingCatalog
SSOP (DBQ)2859.4 mm² 9.9 x 6
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