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 (VCC = 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 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS 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

System Two, Audio Precision are trademarks of Audio Precision, Inc. All other trademarks are the property of their respective owners.

• Number of DAC channels (#)
• 2
• Analog inputs
• 0
• Analog outputs
• 2
• DAC SNR (Typ) (dB)
• 106
• Sampling rate (Max) (kHz)
• 192
• Control interface
• H/W
• Resolution (Bits)
• 24
• Architecture
• Delta-Sigma

PCM1781的完整型号有：PCM1781DBQ、PCM1781DBQR，以下是这些产品的关键参数及官网采购报价：

PCM1781DBQ，工作温度：-25 to 85，封装：SSOP (DBQ)-16，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCM1781DBQ的批量USD价格：1.14（1000+）

PCM1781DBQR，工作温度：-25 to 85，封装：SSOP (DBQ)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCM1781DBQR的批量USD价格：.95（1000+）

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