DAC 2-CH Delta-Sigma 24-bit 16-Pin SSOP Tube

The PCM1780/81/82 is a CMOS, monolithic, integrated circuit, which includes stereo digital-to-analog converters and support circuitry in a small 16-lead SSOP package.The data converters use TI’s enhanced multilevel delta-sigma architecture to achieve excellent dynamic performance and improved tolerance to clock jitter.The PCM1780/81/82 accepts industry standard audio data formats with 16- to 24-bit data, providing easy interfacing to audio DSP and decoder chips.Sampling rates up to 200 kHz are supported.The PCM1780/82 provides a full set of user-programmable functions through a three-wire serial control port, which supports register write functions. The PCM1781 provides a subset of user-programmable functions through four control pins.The PCM1780 is pin-compatible with the PCM1680 (8-channel DAC). 

24-Bit Resolution

Analog Performance (V_CC = 5 V):

• Dynamic Range:106 dB
• SNR:106 dB, Typical
• THD+N:0.002%, Typical
• Full-Scale Output:3.9 Vp-p, Typical

4×/8× Oversampling Digital Filter:

• Stop-Band Attenuation: -50 dB
• Pass-Band Ripple: ±0.04 dB

Sampling Frequency:5 kHz to 200 kHz

System Clock: 128 f_S, 192 f_S, 256 f_S, 384 f_S, 512 f_S, 768 f_S, 1152 f_S With Autodetect

Software Control (PCM1780, PCM1782):

• Accepts 16-, 18-, 20-, and 24-Bit Audio Data
• Formats: Right-Justified, I²S, and Left-Justified
• Digital Attenuation: Mode Selectable
  • 0 dB to -63 dB, 0.5 dB/step
  • 0 dB to -100 dB, 1 dB/step
• Digital De-Emphasis
• Digital Filter Rolloff: Sharp or Slow
• Soft Mute
• Zero Flags for Each Output
• Open-Drain Output Zero Flag (PCM1782)

Hardware Control (PCM1781):

• I²S and 16-Bit Word, Right-Justified
• Digital De-Emphasis
• Soft Mute
• Zero Flag for L-, R-Channel Common Output

Power Supply: 5-V Single Supply

Small, 16-Lead SSOP Package (150 mil)

Pin-Compatible with PCM1680

APPLICATIONS

• A/V Receivers
• DVD Movie Players
• DVD Add-On Cards For High-End PCs
• DVD Audio Players
• HDTV Receivers
• Car Audio Systems
• Other Applications Requiring 24-Bit Audio