홈 오디오, 햅틱, 피에조 오디오 증폭기 오토모티브 오디오 증폭기
홈
오디오, 햅틱, 피에조
오디오 증폭기
오토모티브 오디오 증폭기

LM4911Q-Q1

활성

차량용, 40mW, 스테레오 헤드폰 증폭기(정전식 커플 또는 OCL 출력 선택 가능)

지금 주문하기
데이터 시트

LM4911Q-Q1

활성
데이터 시트 지금 주문하기

제품 상세 정보

Output power (W) 0.04 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2 Speaker channels (max) Stereo Features Ultra-low noise Audio input type Analog input Control interface Hardware THD + N at 1 kHz (%) 0.1 Output noise voltage (µV) 10 Rating Automotive Operating temperature range (°C) -40 to 105
Output power (W) 0.04 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2 Speaker channels (max) Stereo Features Ultra-low noise Audio input type Analog input Control interface Hardware THD + N at 1 kHz (%) 0.1 Output noise voltage (µV) 10 Rating Automotive Operating temperature range (°C) -40 to 105
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)

  • OCL or capacitively coupled outputs (patent pending)
  • External gain-setting capability
  • Available in space-saving MSOP and LD packages
  • Ultra low current shutdown mode
  • Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs
  • 2V - 5.5V operation
  • Ultra low noise
  • LM4911QMM is an Automotive Grade product that is AE-Q100 grade 2 qualified.
    •

  • OCL or capacitively coupled outputs (patent pending)
  • External gain-setting capability
  • Available in space-saving MSOP and LD packages
  • Ultra low current shutdown mode
  • Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs
  • 2V - 5.5V operation
  • Ultra low noise
  • LM4911QMM is an Automotive Grade product that is AE-Q100 grade 2 qualified.
    •

    The LM4911/LM4911Q is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply.

    Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911/LM4911Q does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911/LM4911Q may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending).

    The LM4911/LM4911Q features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911/LM4911Q features an internal thermal shutdown protection mechanism.

    The LM4911/LM4911Q is unity gain stable and may be configured with external gain-setting resistors.

    A Q-grade version is available for automotive applications. It is AEC-Q100 grade 2 qualified and packaged in a 10–pin MSOP package (LM4911QMM).

    Key Specifications

    PSRR at 217Hz and 1kHz

    65dB (typ)

    Output Power at 1kHz with VDD = 2.4V,

    1% THD+N into a 16Ω load

    25mW (typ)

    Output Power at 1kHz with VDD = 3V,

    1% THD+N into a 16Ω load

    40mW (typ)

    Shutdown Current

    2.0µA (max)

    Output Voltage change on release from

    Shutdown VDD = 2.4V, RL = 16Ω (C-Coupled)

    1mV (max)

    Mute Current

    100µA (max)

    The LM4911/LM4911Q is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply.

    Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911/LM4911Q does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911/LM4911Q may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending).

    The LM4911/LM4911Q features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911/LM4911Q features an internal thermal shutdown protection mechanism.

    The LM4911/LM4911Q is unity gain stable and may be configured with external gain-setting resistors.

    A Q-grade version is available for automotive applications. It is AEC-Q100 grade 2 qualified and packaged in a 10–pin MSOP package (LM4911QMM).

    Key Specifications

    PSRR at 217Hz and 1kHz

    65dB (typ)

    Output Power at 1kHz with VDD = 2.4V,

    1% THD+N into a 16Ω load

    25mW (typ)

    Output Power at 1kHz with VDD = 3V,

    1% THD+N into a 16Ω load

    40mW (typ)

    Shutdown Current

    2.0µA (max)

    Output Voltage change on release from

    Shutdown VDD = 2.4V, RL = 16Ω (C-Coupled)

    1mV (max)

    Mute Current

    100µA (max)

    filter 기타 오토모티브 오디오 증폭기 찾기
    다운로드 스크립트와 함께 비디오 보기 비디오

    기술 자료

    검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
    3개 모두 보기
    상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
    * 데이터 시트 LM4911/911Q Stereo 40mW Low Noise HP Amp w/Selectable Cap Coupled or OCL Out datasheet (Rev. M) 2011. 6. 8
    애플리케이션 노트 Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 2019. 8. 26
    애플리케이션 노트 AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 2019. 6. 27

    설계 및 개발

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    패키지 핀 CAD 기호, 풋프린트 및 3D 모델
    VSSOP (DGS) 10 Ultra Librarian
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