PCM1794A

AKTIV

Stereo-DAC mit 132 dB Rauschabstand mit höchster Leistung (Hardwaresteuerung)

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Datenblatt

document-pdfAcrobat PCM1794A 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. B) (Englisch) PDF | HTML

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PCM1794A

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of DAC channels

2

Sampling rate (min) (kHz)

10

Sampling rate (max) (kHz)

192

THD+N (dB)

-108

Control interface

H/W

Resolution (Bits)

24

DAC SNR (typ) (dB)

127

Analog outputs

2

Architecture

Advanced Segment

Operating temperature range (°C)

-25 to 85

Rating

Catalog

Number of DAC channels

2

Sampling rate (min) (kHz)

10

Sampling rate (max) (kHz)

192

THD+N (dB)

-108

Control interface

H/W

Resolution (Bits)

24

DAC SNR (typ) (dB)

127

Analog outputs

2

Architecture

Advanced Segment

Operating temperature range (°C)

-25 to 85

Rating

Catalog

SSOP (DB)

28

79.56 mm² (10.2 mm × 7.8 mm)

24-Bit Resolution
Analog Performance:
- Dynamic Range:
  - 132 dB (9 V RMS, Mono)
  - 129 dB (4.5 V RMS, Stereo)
  - 127 dB (2 V RMS, Stereo)
- THD+N: 0.0004%
Differential Current Output: 7.8 mA p-p
8× Oversampling Digital Filter:
- Stop-Band Attenuation: –130 dB
- Pass-Band Ripple: ±0.00001 dB
Sampling Frequency: 10 kHz to 200 kHz
System Clock: 128, 192, 256, 384, 512, or 768 f_S
With Autodetect
Accepts 16-Bit and 24-Bit Audio Data
PCM Data Formats: Standard, I²S, and
Left-Justified
Optional Interface Available to 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-Pin SSOP Package

All trademarks are the property of their respective owners.

24-Bit Resolution
Analog Performance:
- Dynamic Range:
  - 132 dB (9 V RMS, Mono)
  - 129 dB (4.5 V RMS, Stereo)
  - 127 dB (2 V RMS, Stereo)
- THD+N: 0.0004%
Differential Current Output: 7.8 mA p-p
8× Oversampling Digital Filter:
- Stop-Band Attenuation: –130 dB
- Pass-Band Ripple: ±0.00001 dB
Sampling Frequency: 10 kHz to 200 kHz
System Clock: 128, 192, 256, 384, 512, or 768 f_S
With Autodetect
Accepts 16-Bit and 24-Bit Audio Data
PCM Data Formats: Standard, I²S, and
Left-Justified
Optional Interface Available to 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-Pin SSOP Package

All trademarks are the property of their respective owners.

The PCM1794A device is a monolithic, CMOS-integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28-pin SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1794A 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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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	PCM1794A 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. B)	PDF \| HTML	07.12.2015
	Circuit design	Current-to-voltage converter circuit for audio DACs (Rev. A)	PDF \| HTML	19.09.2024
	Anwendungshinweis	HiFi Audio Circuit Design		23.08.2017
	Anwendungshinweis	A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters		27.09.2000
	Anwendungshinweis	THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27		27.09.2000

Design und Entwicklung

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