Inicio Audio Convertidores de audio DAC de audio
Inicio
Audio
Convertidores de audio
DAC de audio

PCM2704

ACTIVO

DAC estéreo USB2.0 FS con SNR de 98 dB con salida de línea y S/PDIF, alimentado por bus/autoalimenta

Haga su pedido ahora
Hoja de datos
Errata

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Reemplazo con funcionalidad mejorada del dispositivo comparado
PCM2704C ACTIVO DAC estéreo de velocidad completa con SNR de 98 dB con salida de línea y S/PDIF, alimentado por bus/ Complaint with USB2.0

PCM2704

ACTIVO
Hoja de datos Haga su pedido ahora

Detalles del producto

Number of DAC channels 0 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 0 Sampling rate (max) (kHz) 48 Control interface HID Resolution (Bits) 16 Architecture USB 2.0 Operating temperature range (°C) -25 to 85 Rating Catalog
Number of DAC channels 0 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 0 Sampling rate (max) (kHz) 48 Control interface HID Resolution (Bits) 16 Architecture USB 2.0 Operating temperature range (°C) -25 to 85 Rating Catalog
SSOP (DB) 28 79.56 mm² 10.2 x 7.8
  • 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.
filter Buscar otro/a DAC de audio
Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 5
Tipo Título Fecha
* Data sheet Stereo Audio DAC With USB Interface Single-Ended Headphone Output and S/PDIF Out datasheet (Rev. F) 15 ene 2009
* Errata Updated Operating Environments for PCM270x, PCM290x Applications 19 oct 2007
Application note Differences between PCM270x and PCM270xC 16 ago 2011
User guide PCM270xEVM-U User's Guide 12 may 2011
Application note Solving Enumeration Errors in USB Audio DAC and CODEC Designs 30 oct 2009

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.

Modelo de simulación

PCM2704DB IBIS Model

SLAC200.ZIP (55 KB) - IBIS Model
Descargar
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Solicitar
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SSOP (DB) 28 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Ver todos los temas del foro en inglés

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos