PCM1794A

現行

132dB SNR 最高性能立體聲 DAC (硬體控制)

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產品規格表

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

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TAD5242

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具有 120dB 動態範圍及耳機與線路驅動器的硬體控制立體聲音訊 DAC Higher performance with voltage output

PCM1794A

現行

產品規格表

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產品詳細資料

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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重要文件	類型	標題	格式選項	日期
*	資料表	PCM1794A 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. B)	PDF \| HTML	2015/12/7
	Circuit design	Current-to-voltage converter circuit for audio DACs (Rev. A)	PDF \| HTML	2024/9/19
	應用說明	HiFi Audio Circuit Design		2017/8/23
	應用說明	A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters		2000/9/27
	應用說明	THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27		2000/9/27