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音频编解码器

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

立即订购
数据表
勘误
PCM2912 不推荐用于新设计
该产品会持续为现有客户提供。新设计应考虑替代产品。
open-in-new 比较替代产品
功能优于所比较器件的普遍直接替代产品
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 Control interface H/W Analog inputs 1 Analog outputs 2 Features Mic bias, PGAs, Sidetone, USB interface Sampling rate (max) (kHz) 48 Rating Catalog Operating temperature range (°C) -25 to 85
Number of ADC channels 1 Number of DAC channels 2 Control interface H/W Analog inputs 1 Analog outputs 2 Features Mic bias, PGAs, Sidetone, USB interface Sampling rate (max) (kHz) 48 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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类型 标题 下载最新的英语版本 日期
* 勘误表 PCM2912 Errata (Rev. A) 2008年 6月 6日
* 数据表 Audio CODEC with USB Interface,Mono Microphone Input and Stereo Headphone Output 数据表 2008年 2月 21日

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