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Audio, háptica y piezoeléctrica
Convertidores de audio
CODEC de audio

PCM2903B

NO RECOMENDADO PARA NUEVOS DISEÑOS

Códec de audio estéreo con interfaz USB, entrada/salida analógica y S/PDIF de un solo extremo

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PCM2903B no se recomienda para nuevos diseños
Este producto sigue estando disponible para los clientes existentes. Los nuevos diseños deben considerar un producto alternativo.
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Funcionalidad similar a la del dispositivo comparado
PCM2903C ACTIVO Codec estéreo USB1.1 con salida de línea y E/S S/PDIF, autoalimentado (interfaz HID) This product has on-chip analog PLLs with SpAct architecture enable playback and record with low clock jitter as well as independent playback and record sampling rates.

PCM2903B

NO RECOMENDADO PARA NUEVOS DISEÑOS
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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 S/PDIF I/O 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 S/PDIF I/O 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)
  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors(1)
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Self-Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rates:
    • 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
  • S/PDIF Input/Output
  • Single Power Supply:
    • 3.3 V Typical
  • Stereo ADC:
    • Analog Performance at VCCC = VCCP1 = VCCP2
      = VCCX = VDD = 3.3 V:
      • THD+N = 0.01%
      • SNR = 89 dB
      • Dynamic Range = 89 dB
    • Decimation Digital Filter:
      • Passband Ripple = ±0.05 dB
      • Stop-Band Attenuation = -65 dB
    • Single-Ended Voltage Input
    • Antialiasing Filter Included
    • Digital HPF Included
  • Stereo DAC:
    • Analog Performance at VCCC = VCCP1 = VCCP2
      = VCCX = VDD = 3.3 V:
      • THD+N = 0.005%
      • SNR = 96 dB
      • Dynamic Range = 93 dB
    • Oversampling Digital Filter:
      • Passband Ripple = ±0.1 dB
      • Stop-Band Attenuation = -43 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multifunctions:
    • Human Interface Device (HID) Function:
      • Volume and and Mute Controls
    • Suspend Flag Function
  • 28-Pin SSOP Package
  • 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.

  • On-Chip USB Interface:
    • With Full-Speed Transceivers
    • Fully Compliant with USB 2.0 Specification
    • Certified by USB-IF
    • Partially Programmable Descriptors(1)
    • USB Adaptive Mode for Playback
    • USB Asynchronous Mode for Record
    • Self-Powered
  • 16-Bit Delta-Sigma ADC and DAC
  • Sampling Rates:
    • 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
  • S/PDIF Input/Output
  • Single Power Supply:
    • 3.3 V Typical
  • Stereo ADC:
    • Analog Performance at VCCC = VCCP1 = VCCP2
      = VCCX = VDD = 3.3 V:
      • THD+N = 0.01%
      • SNR = 89 dB
      • Dynamic Range = 89 dB
    • Decimation Digital Filter:
      • Passband Ripple = ±0.05 dB
      • Stop-Band Attenuation = -65 dB
    • Single-Ended Voltage Input
    • Antialiasing Filter Included
    • Digital HPF Included
  • Stereo DAC:
    • Analog Performance at VCCC = VCCP1 = VCCP2
      = VCCX = VDD = 3.3 V:
      • THD+N = 0.005%
      • SNR = 96 dB
      • Dynamic Range = 93 dB
    • Oversampling Digital Filter:
      • Passband Ripple = ±0.1 dB
      • Stop-Band Attenuation = -43 dB
    • Single-Ended Voltage Output
    • Analog LPF Included
  • Multifunctions:
    • Human Interface Device (HID) Function:
      • Volume and and Mute Controls
    • Suspend Flag Function
  • 28-Pin SSOP Package
  • 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 PCM2903B is Texas Instruments' single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF. The USB protocol controller requires no software code, but the USB descriptors can be modified in some areas (for example, vendor ID and/or product ID). The PCM2903B 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 as well as independent playback and record sampling rates.

The PCM2903B is Texas Instruments' single-chip, USB, stereo audio codec with a USB-compliant full-speed protocol controller and S/PDIF. The USB protocol controller requires no software code, but the USB descriptors can be modified in some areas (for example, vendor ID and/or product ID). The PCM2903B 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 as well as independent playback and record sampling rates.
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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 In/Out and S/PDIF datasheet 17/12/2008
* Errata Updated Operating Environments for PCM270x, PCM290x Applications 19/10/2007

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