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功能與比較器件相同，但引腳排列有所不同
PCM2706C 正在供貨 具有線性輸出和 S/PDIF 輸出、總線供電/自加電的 98 dB SNR 立體聲全速 DAC (I2S) Available in QFP package

產(chǎn)品詳情

Number of DAC channels 0 Sampling rate (max) (kHz) 48 Control interface HID Resolution (Bits) 16 DAC SNR (typ) (dB) 0 Analog outputs 2 Architecture USB 2.0 Operating temperature range (°C) -25 to 85 Rating Catalog
Number of DAC channels 0 Sampling rate (max) (kHz) 48 Control interface HID Resolution (Bits) 16 DAC SNR (typ) (dB) 0 Analog outputs 2 Architecture USB 2.0 Operating temperature range (°C) -25 to 85 Rating Catalog
SSOP (DB) 28 79.56 mm2 10.2 x 7.8
  • On-Chip USB Interface:
    • No Dedicated Device Driver Needed
    • Full-Speed Transceivers
    • Fully Compliant With USB 2.0 Specification
      • USB 1.1 Descriptors With USB Audio
        Class Support
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rates: 32 kHz, 44.1 kHz, and 48 kHz
  • On-Chip Clock Generator With Single 12-MHz
    Clock Source
  • Single Power Supply:
    • Bus-Powered: 5 V, Typical (VBUS)
    • Self-Powered: 3.3 V, Typical
  • 16-Bit Delta-Sigma Stereo DAC
    • Analog Performance at 5 V (Bus-Powered),
      3.3 V (Self-Powered):
      • THD + N: 0.006% RL > 10 kΩ, Self-
        Powered
      • THD + N: 0.025% RL = 32 Ω
      • SNR = 98 dB
      • Dynamic Range: 98 dB
      • PO = 12 mW, RL = 32 Ω
    • Oversampling Digital Filter
      • Passband Ripple = ±0.04 dB
      • Stop-Band Attenuation = –50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID)
      Interfaces (Model and Setting Dependent)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704C/6C)
    • Serial Programming Interface (PCM2705C/7C)
    • I2S Interface (Selectable on PCM2706C/7C)
  • On-Chip USB Interface:
    • No Dedicated Device Driver Needed
    • Full-Speed Transceivers
    • Fully Compliant With USB 2.0 Specification
      • USB 1.1 Descriptors With USB Audio
        Class Support
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rates: 32 kHz, 44.1 kHz, and 48 kHz
  • On-Chip Clock Generator With Single 12-MHz
    Clock Source
  • Single Power Supply:
    • Bus-Powered: 5 V, Typical (VBUS)
    • Self-Powered: 3.3 V, Typical
  • 16-Bit Delta-Sigma Stereo DAC
    • Analog Performance at 5 V (Bus-Powered),
      3.3 V (Self-Powered):
      • THD + N: 0.006% RL > 10 kΩ, Self-
        Powered
      • THD + N: 0.025% RL = 32 Ω
      • SNR = 98 dB
      • Dynamic Range: 98 dB
      • PO = 12 mW, RL = 32 Ω
    • Oversampling Digital Filter
      • Passband Ripple = ±0.04 dB
      • Stop-Band Attenuation = –50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID)
      Interfaces (Model and Setting Dependent)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704C/6C)
    • Serial Programming Interface (PCM2705C/7C)
    • I2S Interface (Selectable on PCM2706C/7C)

The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.

The PCM270xC are TI’s single-chip USB stereo audio digital-to-analog converters (DACs) with USB 2.0 compliant full-speed protocol controller and S/PDIF. The USB-protocol controller works with no software code, but USB descriptors can be modified in some areas (for example, vendor ID/product ID) through the use of an external ROM (PCM2704C and PCM2706C) or serial peripheral interface (SPI) (PCM2705C and PCM2707C). The PCM270xC also employ SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog phase-locked loops (PLLs) with SpAct enable playback with low clock jitter.
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類型 標題 下載最新的英語版本 日期
* 數(shù)據(jù)表 PCM270xC Stereo Audio DAC With USB Interface, Single-Ended Headphone Output and S/PDIF Output 數(shù)據(jù)表 (Rev. B) PDF | HTML 2015年 8月 25日
應用手冊 Differences between PCM270x and PCM270xC 2011年 8月 16日
應用手冊 所選封裝材料的熱學和電學性質(zhì) 2008年 10月 16日

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評估板

PCM2704EVM-U — PCM2704 評估模塊

PCM2704EVM-U 和 PCM2705EVM-U 是 PCM2704/5 USB 音頻編解碼器的評估模塊。

該 EVM 由 Windows? XP、Windows? Vista、Windows? 7、OSX 以及同 USB 類音頻器件兼容的大多數(shù)操作系統(tǒng)提供支持。

PCM2704EVM-U 及 PCM2705EVM-U 連接到 PC 的 USB 端口。USB 接口為 EVM 提供電源、控制及流式音頻數(shù)據(jù)。

用戶指南: PDF
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仿真模型

PCM2704C IBIS Model

SBFM010.ZIP (54 KB) - IBIS Model
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