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Convertidores de audio
DAC de audio

PCM1795

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DAC de audio estéreo de 32 bits, 192 kHz de muestreo, segmento avanzado

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TAD5212 PRESENTACIÓN PRELIMINAR High-performance stereo audio DAC with 120dB dynamic range, and headphone and line driver Similar performance available in QFN package

PCM1795

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Detalles del producto

Number of DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 123 Sampling rate (max) (kHz) 200 Control interface I2C, SPI, TDMCA Resolution (Bits) 32 Architecture Advanced Segment Operating temperature range (°C) -25 to 85 Rating Catalog
Number of DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (typ) (dB) 123 Sampling rate (max) (kHz) 200 Control interface I2C, SPI, TDMCA Resolution (Bits) 32 Architecture Advanced Segment Operating temperature range (°C) -25 to 85 Rating Catalog
SSOP (DB) 28 79.56 mm² 10.2 x 7.8
  • 32-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 123 dB
    • THD+N: 0.0005%
  • Differential Current Output: 3.9 mAPP
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –98 dB
    • Passband Ripple: ±0.0002 dB
  • Sampling Frequency: 10 kHz to 200 kHz
  • System Clock: 128, 192, 256, 384, 512, or
    768 fS With Autodetect
  • Accepts 16-, 24-, and 32-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-
    Justified
  • DSD Format Interface Available
  • Interface Available for Optional External Digital
    Filter or DSP
  • TDMCA or Serial Port (SPI™/I2C)
  • User-Programmable Mode Controls:
    • Digital Attenuation:
      0 dB to –120 dB, 0.5-dB/Step
    • Digital De-Emphasis
    • Digital Filter Roll-Off: Sharp or Slow
    • Soft Mute
    • Zero Flag for Each Output
  • Compatible With PCM1792A and PCM1796
    (Pins and Mode Controls)
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small SSOP-28 Package
  • 32-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 123 dB
    • THD+N: 0.0005%
  • Differential Current Output: 3.9 mAPP
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –98 dB
    • Passband Ripple: ±0.0002 dB
  • Sampling Frequency: 10 kHz to 200 kHz
  • System Clock: 128, 192, 256, 384, 512, or
    768 fS With Autodetect
  • Accepts 16-, 24-, and 32-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-
    Justified
  • DSD Format Interface Available
  • Interface Available for Optional External Digital
    Filter or DSP
  • TDMCA or Serial Port (SPI™/I2C)
  • User-Programmable Mode Controls:
    • Digital Attenuation:
      0 dB to –120 dB, 0.5-dB/Step
    • Digital De-Emphasis
    • Digital Filter Roll-Off: Sharp or Slow
    • Soft Mute
    • Zero Flag for Each Output
  • Compatible With PCM1792A and PCM1796
    (Pins and Mode Controls)
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small SSOP-28 Package

The PCM1795 device is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small SSOP-28 package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1795 provides balanced current outputs, letting the user optimize analog performance externally. The PCM1795 accepts pulse code modulation (PCM) and direct stream digital (DSD) audio data formats, thus providing an easy interface to audio digital signal processors (DSPs) and decoder chips. The PCM1795 device also interfaces with external digital filter devices such as the DF1704, DF1706, and the PMD200 from Pacific Microsonics&trade. Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port that supports register write and readback functions. The PCM1795 device also supports the time-division-multiplexed (TDM) command and audio (TDMCA) data format.

The PCM1795 device is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small SSOP-28 package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1795 provides balanced current outputs, letting the user optimize analog performance externally. The PCM1795 accepts pulse code modulation (PCM) and direct stream digital (DSD) audio data formats, thus providing an easy interface to audio digital signal processors (DSPs) and decoder chips. The PCM1795 device also interfaces with external digital filter devices such as the DF1704, DF1706, and the PMD200 from Pacific Microsonics&trade. Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port that supports register write and readback functions. The PCM1795 device also supports the time-division-multiplexed (TDM) command and audio (TDMCA) data format.
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Documentación técnica

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* Data sheet PCM1795 32-Bit, 192-kHz Sampling, Advanced Segment, Stereo Audio Digital-to-Analog Converter datasheet (Rev. A) PDF | HTML 16 mar 2015
Certificate PCM1795EVM EU Declaration of Conformity (DoC) 19 jun 2024
White paper Designing professional audio mixers for every scenario 28 jun 2018
Application note A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters 27 sep 2000
Application note THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 27 sep 2000

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

PCM1795 IBIS Model

SLEM006.ZIP (26 KB) - IBIS Model
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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 (...)
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SSOP (DB) 28 Ultra Librarian
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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

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Soporte y capacitación

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