제품 상세 정보

Number of DAC channels 2 Sampling rate (min) (kHz) 10 Sampling rate (max) (kHz) 192 THD+N (dB) -88 Control interface H/W Resolution (Bits) 24 DAC SNR (typ) (dB) 127 Analog outputs 2 Architecture Advanced Segment Operating temperature range (°C) -40 to 125 Rating Automotive
Number of DAC channels 2 Sampling rate (min) (kHz) 10 Sampling rate (max) (kHz) 192 THD+N (dB) -88 Control interface H/W Resolution (Bits) 24 DAC SNR (typ) (dB) 127 Analog outputs 2 Architecture Advanced Segment Operating temperature range (°C) -40 to 125 Rating Automotive
SSOP (DB) 28 79.56 mm² (10.2 mm × 7.8 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C6
  • 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 fS 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.

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C6
  • 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 fS 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-Q1 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-Q1 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

For all available packages, see the orderable addendum at the end of the data sheet.

The PCM1794A-Q1 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-Q1 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

For all available packages, see the orderable addendum at the end of the data sheet.

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀.
PCM1794A 활성 132dB SNR 초고성능 스테레오 DAC(하드웨어 제어) Catalog version without AEC-Q100 qualification

기술 자료

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
5개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 PCM1794A-Q1 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. A) PDF | HTML 2015. 12. 7
Circuit design Current-to-voltage converter circuit for audio DACs (Rev. A) PDF | HTML 2024. 9. 19
애플리케이션 노트 Out-of-Band Noise and Filtering for PCM DAC 2005. 5. 20
애플리케이션 노트 A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters 2000. 9. 27
애플리케이션 노트 THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 2000. 9. 27

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

시뮬레이션 모델

PCM1794A-Q1 IBIS MODEL

SLAM284.ZIP (11 KB) - IBIS 모델
지원되는 제품 및 하드웨어
패키지 CAD 기호, 풋프린트 및 3D 모델
SSOP (DB) 28 Ultra Librarian

주문 및 품질

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지원 및 교육

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콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

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