The DSD1608 is a CMOS, monolithic, 8-channel digital-to-analog converter which supports both PCM audio data format and direct stream digital (DSD) audio data format. The device includes an 8× digital interpolation filter and a digital DSD filter with three selectable frequency-response curves, followed by Texas Instruments’ enhanced multilevel delta-sigma modulator, which employs 4th-order noise shaping and 8-level amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. Sampling rates up to 192 kHz for the PCM mode and 64 × 44.1 kHz for the DSD mode are supported. A full set of user-programmable functions is accessible through a 4-wire serial control port, which supports register write and read functions. The DSD1608 supports the time-division-multiplexed command and audio data (TDMCA) format. The DSD1608 is available in a 52-pin TQFP package.

• Supports DSD and PCM Formats
• Supports TDMCA
• Accepts 16-, 18-, 20- and 24-Bit Audio Data for PCM Format
• Analog Performance (VCC = 5 V):
  • Dynamic Range: 108 dB, Typical
  • SNR: 108 dB, Typical
  • THD+N: 0.0012%, Typical
  • Full-Scale Output: 4 Vpp, Typical
• Includes 8× Oversampling Digital Filter for PCM Format:
  • Stopband Attenuation: –60 dB
  • Passband Ripple: ±0.02 dB
• Includes Digital DSD FILTER for DSD Format:
  • Passband: 50 kHz, 70 kHz, 60 kHz at –3 dB
• Sampling Frequency:
  • PCM Mode: 10 kHz to 200 kHz
  • DSD Mode: 64 × 44.1 kHz
• System Clock:
  • 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS
• Data Formats:
  • Standard, I2S, and Left-Justified for PCM Direct Stream Digital
• User-Programmable Mode Controls:
  • Digital Attenuation
  • Digital De-Emphasis
  • Digital Filter Rolloff: Sharp or Slow Soft Mute
  • Three Zero Flags
• Dual Supply Operation:
  • 5-V Analog, 3.3-V Digital
• Package: 52-Pin TQFP
• APPLICATIONS
  • Universal A/V Players
  • SACD Players
  • Car Audio Systems
  • Other Applications Requiring 24-Bit Audio