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.