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Audio, háptica y piezoeléctrica
Convertidores de audio
CODEC de audio

PCM2904

ACTIVO

CODEC USB1.1 estéreo con salida de línea, alimentado por bus (interfaz HID + USB de 500 mA de corrie

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PCM2904

ACTIVO
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Detalles del producto

Number of ADC channels 2 Number of DAC channels 2 Control interface HID Analog inputs 2 Analog outputs 2 Features 500-mA max power configuration Sampling rate (max) (kHz) 48 Rating Catalog Operating temperature range (°C) -25 to 85
Number of ADC channels 2 Number of DAC channels 2 Control interface HID Analog inputs 2 Analog outputs 2 Features 500-mA max power configuration Sampling rate (max) (kHz) 48 Rating Catalog Operating temperature range (°C) -25 to 85
SSOP (DB) 28 79.56 mm² (10.2 mm × 7.8 mm)
  • PCM2904: Without S/PDIF
  • PCM2906: With S/PDIF
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant With USB 1.1 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors(1)
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • DAC: 32, 44.1, 48 kHz
    • ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
  • On-Chip Clock Generator With Single 12-MHz Clock Source
  • Single Power Supply: 5 V Typical (VBUS)
  • Stereo ADC
    • Analog Performance at VBUS = 5 V
      • THD+N = 0.01%
      • SNR = 89 dB
      • Dynamic Range = 89 dB
    • Decimation Digital Filter
      • Pass-Band Ripple = ±0.05 dB
      • Stop-Band Attenuation = -65 dB
    • Single-Ended Voltage Input
    • Antialiasing Filter Included
    • Digital LCF Included
  • Stereo DAC:
    • Analog Performance at VBUS = 5 V
      • THD+N = 0.005%
      • SNR = 96 dB
      • Dynamic Range = 93 dB
    • Oversampling Digital Filter
      • Pass-Band Ripple = ±0.1 dB
      • Stop-Band Attenuation = -43 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multifunctions:
    • Human Interface Device (HID) Volume ± Control and Mute Control
    • Suspend Flag
  • Package: 28-Pin SSOP
  • APPLICATIONS
    • USB Audio Speaker
    • USB Headset
    • USB Monitor
    • USB Audio Interface Box

(1)The descriptor can be modified by changing a mask.

SpAct is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
  • PCM2904: Without S/PDIF
  • PCM2906: With S/PDIF
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant With USB 1.1 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors(1)
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Bus Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rate:
    • DAC: 32, 44.1, 48 kHz
    • ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
  • On-Chip Clock Generator With Single 12-MHz Clock Source
  • Single Power Supply: 5 V Typical (VBUS)
  • Stereo ADC
    • Analog Performance at VBUS = 5 V
      • THD+N = 0.01%
      • SNR = 89 dB
      • Dynamic Range = 89 dB
    • Decimation Digital Filter
      • Pass-Band Ripple = ±0.05 dB
      • Stop-Band Attenuation = -65 dB
    • Single-Ended Voltage Input
    • Antialiasing Filter Included
    • Digital LCF Included
  • Stereo DAC:
    • Analog Performance at VBUS = 5 V
      • THD+N = 0.005%
      • SNR = 96 dB
      • Dynamic Range = 93 dB
    • Oversampling Digital Filter
      • Pass-Band Ripple = ±0.1 dB
      • Stop-Band Attenuation = -43 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multifunctions:
    • Human Interface Device (HID) Volume ± Control and Mute Control
    • Suspend Flag
  • Package: 28-Pin SSOP
  • APPLICATIONS
    • USB Audio Speaker
    • USB Headset
    • USB Monitor
    • USB Audio Interface Box

(1)The descriptor can be modified by changing a mask.

SpAct is a trademark of Texas Instruments.
System Two, Audio Precision are trademarks of Audio Precision, Inc.

The PCM2904/2906 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (PCM2906 only). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (for example, vendor ID/product ID). The PCM2904/2906 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter and with independent playback and record sampling rates.

The PCM2904/2906 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (PCM2906 only). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (for example, vendor ID/product ID). The PCM2904/2906 employs SpAct™ architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter and with independent playback and record sampling rates.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos Stereo Audio CODEC with USB Interface, Single-Ended Analog Input/Output and S/PD datasheet (Rev. C) 9/11/2007
* Errata PCM290x Errata (Rev. A) 30/05/2008
* Errata Updated Operating Environments for PCM270x, PCM290x Applications 19/10/2007
Nota sobre la aplicación Key Differences Between the PCM290x and PCM290xC 14/09/2011
Nota sobre la aplicación Solving Enumeration Errors in USB Audio DAC and CODEC Designs 30/10/2009
Más documentación PCM2906B Read-Me-First Letter: PCM2906B and PCM2906 Difference 24/01/2009
Guía del usuario USB Audio Filter Driver Installation 19/12/2008

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Controlador o biblioteca

SLAC156 — PCM290x USB Audio Filter Driver Installation Software

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SSOP (DB) 28 Ultra Librarian
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Soporte y capacitación

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