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音訊轉換器
音訊 DAC

PCM2704

現行

具有線路輸出和 S/PDIF 輸出、匯流排供電/自加電的 98dB SNR 立體聲 USB2.0 FS DAC (外部ROM 介面)

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PCM2704C 現行 具線性輸出和 S/PDIF 輸出、匯流排/自供電的 98 dB SNR 立體聲全速 DAC (外部ROM 介面) Complaint with USB2.0

PCM2704

現行
產品規格表 立即訂購

產品詳細資料

Number of DAC channels 0 Sampling rate (min) (kHz) 16 Sampling rate (max) (kHz) 48 THD+N (dB) -84 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 (min) (kHz) 16 Sampling rate (max) (kHz) 48 THD+N (dB) -84 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 mm × 7.8 mm)
  • On-Chip USB Interface:
    • No Need of Dedicated Device Driver
    • With Full-Speed Transceivers
    • Fully Compliant With USB 1.1 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rate: 32, 44.1, 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 Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704/6)
    • Serial Programming Interface (PCM2705/7)
    • I2S Interface (Selectable on PCM2706/7)
  • Package:
  • On-Chip USB Interface:
    • No Need of Dedicated Device Driver
    • With Full-Speed Transceivers
    • Fully Compliant With USB 1.1 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Bus-Powered or Self-Powered Operation
  • Sampling Rate: 32, 44.1, 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 Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multiple Functions:
    • Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)
    • Suspend Flag
    • S/PDIF Out With SCMS
    • External ROM Interface (PCM2704/6)
    • Serial Programming Interface (PCM2705/7)
    • I2S Interface (Selectable on PCM2706/7)
  • Package:

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-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 parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-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 parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 Stereo Audio DAC With USB Interface Single-Ended Headphone Output and S/PDIF Out datasheet (Rev. F) 2009/1/15
* 勘誤表 Updated Operating Environments for PCM270x, PCM290x Applications 2007/10/19
應用說明 Differences between PCM270x and PCM270xC 2011/8/16
使用指南 PCM270xEVM-U User's Guide 2011/5/12
應用說明 Solving Enumeration Errors in USB Audio DAC and CODEC Designs 2009/10/30

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模擬型號

PCM2704DB IBIS Model

SLAC200.ZIP (55 KB) - IBIS 模型
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