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PCM1781的基本参数
  • 制造厂商:TI
  • 产品类别:音频
  • 技术类目:音频转换器 - 音频 DAC
  • 功能描述:106dB SNR 立体声 DAC(硬件控制)
  • 点击这里打开及下载PCM1781的技术文档资料
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PCM1781的产品详情:

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).

PCM1781的优势和特性:
  • 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.

PCM1781的参数(英文):
  • 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具体的完整产品型号参数及价格(美元):

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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PCM1781的评估套件:

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