h1_key

TI(德州仪器) PCM1791A
德州仪器 (TI) 全系列产品在线购买
  • TI(德州仪器) PCM1791A
  • TI(德州仪器) PCM1791A
  • TI(德州仪器) PCM1791A
  • TI(德州仪器) PCM1791A
  • TI(德州仪器) PCM1791A
  • TI(德州仪器) PCM1791A
立即查看
您当前的位置: 首页 > 音频 > 音频转换器 > 音频 DAC > PCM1791A
PCM1791A

PCM1791A

正在供货

113dB SNR 立体声 DAC(软件控制)

产品详情
  • 说明
  • 特性
  • 参数
  • 封装 | 引脚 | 尺寸

The PCM1791A is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1791A provides balanced voltage outputs, allowing the user to optimize analog performance externally. The PCM1791A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1791A also accepts interface to external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port, which supports register write and readback functions. The PCM1791A also supports the time-division-multiplexed command and audio (TDMCA) data format.

  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 113 dB
    • THD+N: 0.001%
    • Full-Scale Output: 2.1 V RMS (at Postamp)
  • Differential Voltage Output: 3.2 Vp-p
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –82 dB
    • Pass-Band Ripple: ±0.002 dB
  • Sampling Frequency: 10 kHz to 200 kHz
  • System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect
  • Accepts 16-, 20-, and 24-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-Justified
  • DSD Format Interface Available
  • Optional Interface to External Digital Filter or DSP Available
  • TDMCA or Serial Port (SPI/I2C)
  • User-Programmable Mode Controls:
    • Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
    • Digital De-Emphasis
    • Digital Filter Rolloff: Sharp or Slow
    • Soft Mute/PCM Format
    • Zero Detect Mute/PCM Format
    • Zero Flag for Each Output/PCM and DSD Formats
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small 28-Lead SSOP Package
  • APPLICATIONS
    • A/V Receivers
    • DVD Movie Players
    • SACD Player
    • HDTV Receivers
    • Car Audio Systems
    • Digital Multitrack Recorders
    • Other Applications Requiring 24-Bit Audio

Number of DAC channels2
Analog inputs0
Analog outputs2
DAC SNR (typ) (dB)113
Sampling rate (max) (kHz)192
Control interfaceI2C, SPI
Resolution (Bits)24
ArchitectureAdvanced Segment
Operating temperature range (°C)-25 to 85
RatingCatalog
SSOP (DB)2879.56 mm² 10.2 x 7.8
产品购买
  • 商品型号
  • 封装
  • 工作温度
  • 包装
  • 价格
  • 现货库存
  • 操作
10s
温馨提示:
订单商品问题请移至我的售后服务提交售后申请,其他需投诉问题可移至我的投诉提交,我们将在第一时间给您答复
返回顶部