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PCM2912

不推荐用于新设计

具有 USB 接口、单声道麦克风输入和立体声耳机输出的音频编解码器

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勘误
PCM2912 不推荐用于新设计
虽然我们会继续生产此产品供先前的设计使用，但不推荐在新设计中使用此产品。请考虑从这些替代产品中选择一款：
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功能与比较器件相似
PCM2912A 正在供货 具有 USB 接口、单声道麦克风输入和立体声耳机输出的音频编解码器 The product is a single-chip, USB stereo audio codec with a USB, 2.0-compliant, full-speed protocol controller and an analog front-end (AFE) function for headset applications.

PCM2912

不推荐用于新设计
数据表 立即订购

产品详情

Number of ADC channels 1 Number of DAC channels 2 Analog inputs 1 Sampling rate (max) (kHz) 48 Control interface H/W Features Mic bias, PGAs, Sidetone, USB interface Analog outputs 2 Rating Catalog Operating temperature range (°C) -25 to 85
Number of ADC channels 1 Number of DAC channels 2 Analog inputs 1 Sampling rate (max) (kHz) 48 Control interface H/W Features Mic bias, PGAs, Sidetone, USB interface Analog outputs 2 Rating Catalog Operating temperature range (°C) -25 to 85
TQFP (PJT) 32 81 mm² 9 x 9
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified By USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Asynchronous Isochronous Transfer for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
  • On-Chip Clock Generator:
    • With Single 6-MHz Clock Source
  • Mono ADC with Microphone Input
    • Analog Performance at VBUS = 5 V:
    • THD+N: 0.01%
    • SNR: 92 dB
    • Dynamic Range: 90 dB
  • Decimation Digital Filter
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: -65 dB
  • Single-Ended Voltage Input
  • Antialiasing Filter Included
  • Digital HPF Included
  • Microphone Bias, Microphone Amplifier, and Input PGA
  • Stereo DAC With Headphone Output
    • Analog Performance at VBUS = 5.0 V:
      • THD+N: 0.01% (RL > 10 k
        • )
      • THD+N: 0.02% (RL = 32
        • )
      • SNR: 92 dB
      • Dynamic Range: 90 dB
      • PO: 13 mW (RL = 32 )
      • PO: 25 mW (RL = 16 )
    • Oversampling Digital Filter
      • Pass-Band Ripple: ±0.1 dB
      • Stop-Band Attenuation: -43 dB
      • Single-Ended Voltage Output
      • Analog LPF Included
      • Sidetone PGA, Output PGA, and HP Amplifier
    • Multifunctions:
      • Suspend, Playback, and Record Status Flag
      • Microphone Amplifier, Mute, and Gain Control
    • Pop/Click Noise Free
    • Single Power Supply: 5 V Typ (VBUS)
    • Package: 32-Pin TQFP
  • APPLICATIONS
    • USB Headset
    • USB Headphone
    • USB Speaker
    • USB Featured Consumer Audio Product
    • USB Audio Interface Box
    • USB Monitor
    • Video Conference System

SpAct is a trademark of Texas Instruments.

Audio Precision, System Two are trademarks of Audio Precision, Inc.
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified By USB-IF
    • Partially Programmable Descriptors
    • Adaptive Isochronous Transfer for Playback
    • Asynchronous Isochronous Transfer for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
  • On-Chip Clock Generator:
    • With Single 6-MHz Clock Source
  • Mono ADC with Microphone Input
    • Analog Performance at VBUS = 5 V:
    • THD+N: 0.01%
    • SNR: 92 dB
    • Dynamic Range: 90 dB
  • Decimation Digital Filter
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: -65 dB
  • Single-Ended Voltage Input
  • Antialiasing Filter Included
  • Digital HPF Included
  • Microphone Bias, Microphone Amplifier, and Input PGA
  • Stereo DAC With Headphone Output
    • Analog Performance at VBUS = 5.0 V:
      • THD+N: 0.01% (RL > 10 k
        • )
      • THD+N: 0.02% (RL = 32
        • )
      • SNR: 92 dB
      • Dynamic Range: 90 dB
      • PO: 13 mW (RL = 32 )
      • PO: 25 mW (RL = 16 )
    • Oversampling Digital Filter
      • Pass-Band Ripple: ±0.1 dB
      • Stop-Band Attenuation: -43 dB
      • Single-Ended Voltage Output
      • Analog LPF Included
      • Sidetone PGA, Output PGA, and HP Amplifier
    • Multifunctions:
      • Suspend, Playback, and Record Status Flag
      • Microphone Amplifier, Mute, and Gain Control
    • Pop/Click Noise Free
    • Single Power Supply: 5 V Typ (VBUS)
    • Package: 32-Pin TQFP
  • APPLICATIONS
    • USB Headset
    • USB Headphone
    • USB Speaker
    • USB Featured Consumer Audio Product
    • USB Audio Interface Box
    • USB Monitor
    • Video Conference System

SpAct is a trademark of Texas Instruments.

Audio Precision, System Two are trademarks of Audio Precision, Inc.

The PCM2912 is the Texas Instruments single-chip, USB stereo audio CODEC with USB 2.0-compliant full-speed protocol controller and analog front end (AFE) function for headset application. The USB protocol controller works with no software code, but USB descriptors can be modified on request(1). The PCM2912 employs SpActĢ architecture, TI's unique system that recovers the audio clock from USB packet data. On chip analog PLLs with SpAct enables independent playback and record sampling rate with low clock jitters.

(1)The descriptor can be modified by changing a mask; contact your representative about the details.

The PCM2912 is the Texas Instruments single-chip, USB stereo audio CODEC with USB 2.0-compliant full-speed protocol controller and analog front end (AFE) function for headset application. The USB protocol controller works with no software code, but USB descriptors can be modified on request(1). The PCM2912 employs SpActĢ architecture, TI's unique system that recovers the audio clock from USB packet data. On chip analog PLLs with SpAct enables independent playback and record sampling rate with low clock jitters.

(1)The descriptor can be modified by changing a mask; contact your representative about the details.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 Audio CODEC with USB Interface,Mono Microphone Input and Stereo Headphone Output 数据表 2008年 2月 21日
* 勘误表 PCM2912 Errata (Rev. A) 2008年 6月 6日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日
EVM 用户指南 DEM-PCM2912 EVM User's Guide 2008年 3月 20日
应用手册 Operating Environments for PCM2912 Applications 2008年 2月 21日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

模拟工具

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PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

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TQFP (PJT) 32 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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