• Qualified for Automotive Applications: PCM1681-Q1
• 24-Bit Resolution
• Analog Performance:
  • Dynamic Range: 105 dB Typical
  • SNR: 105 dB Typical
  • THD+N: 0.002% Typical
  • Full-Scale Output: 3.75 VPP Typical
• 4×/8× Oversampling Interpolation Filter:
  • Stop-Band Attenuation: –57 dB
  • Pass-Band Ripple: ±0.015 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
• Flexible Mode Control:
  • SPI™/I2C™ Dual Mode for Serial Port
  • Parallel Hardware Control with 4 Functions
• User-Programmable Functions (in SPI/I2C):
  • Flexible Audio Data Formats:
    • Right-Justified, I2S™, Left-Justified, TDM, DSP
    • 16- 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
  • Oversampling Mode
• User-Programmable Functions (in H/W):
  • Flexible Audio Data Formats:
    • Right-Justified, I2S, Left-Justified, TDM
    • Soft Mute
    • Digital De-Emphasis
    • Oversampling Mode
• Power Supply Voltage: 5-V Analog, 3.3-V Digital
• Package: 28-Lead HTSSOP PowerPAD™
• Operation Temperature Range:
  • –40°C to 85°C for Consumer Grade
  • –40°C to 105°C for Automotive Audio Grade

• Car Audio External Amplifiers
• Car Audio AVN Applications
• Integrated A/V Receivers
• DVD Movie and Audio Players
• HDTV Receivers
• DVD Add-On Cards for High-End PCs
• Digital Audio Workstations
• Other Multichannel Audio Systems

The PCM1681 and PCM1681-Q1 are CMOS monolithic integrated circuits which feature an eight-channel 24-bit audio digital-to-analog converter (DAC) and support circuitry in small 28-lead TSSOP PowerPAD packages. The DACs utilize Burr-Brown's enhanced multilevel delta-sigma (ΔΣ) architecture to achieve excellent signal-to-noise performance and a high tolerance to clock jitter.