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Product details

Parameters

DAC channels 2 Analog inputs 0 Analog outputs 2 DAC SNR (Typ) (dB) 123 Sampling rate (Max) (kHz) 192 Control interface H/W Resolution (Bits) 24 Architecture Advanced Segment open-in-new Find other Audio DACs

Package | Pins | Size

SSOP (DB) 28 54 mm² 5.30 x 10.20 open-in-new Find other Audio DACs

Features

  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 123 dB
    • THD+N: 0.0005%
  • Differential Current Output: 4 mAp-p
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –98 dB
    • Pass-Band 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- and 24-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-
    Justified
  • Interface Available for Optional External Digital
    Filter or DSP
  • Digital De-Emphasis
  • Digital Filter Rolloff: Sharp or Slow
  • Soft Mute
  • Zero Flag
  • Dual-Supply Operation: 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small 28-Lead SSOP Package
  • Pin Assignment Compatible With PCM1794
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Description

The PCM1798 device is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1798 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

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Technical documentation

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Type Title Date
* Data sheet PCM1798 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. B) Mar. 13, 2015
Application notes Dynamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000
Application notes A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters Sep. 27, 2000
Application notes THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 Sep. 27, 2000

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLEM009.ZIP (11 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SSOP (DB) 28 View options

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