홈 오디오, 햅틱, 피에조 오디오 증폭기 범용 오디오 증폭기
홈
오디오, 햅틱, 피에조
오디오 증폭기
범용 오디오 증폭기

LM4990

활성

2W 모노, 아날로그 입력 클래스 AB 오디오 증폭기

지금 주문하기
데이터 시트

LM4990

활성
데이터 시트 지금 주문하기

제품 상세 정보

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 THD + N at 1 kHz (%) 0.2 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 THD + N at 1 kHz (%) 0.2 Load (min) (Ω) 4 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YZR) 9 3.0625 mm² (— mm × — mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) HVSSOP (DGQ) 10 14.7 mm² (3 mm × 4.9 mm)
  • Available in Space-Saving Packages: WSON, Exposed-DAP MSOP-PowerPAD, VSSOP, and DSBGA
  • Ultra Low Current Shutdown Mode
  • Improved Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • 2.2 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • User Selectable Shutdown High or Low Logic Level

Key Specifications

  • Improved PSRR at 217Hz & 1KHz: 62dB
  • Power Output at 5.0V, 1% THD+N,
    • 4Ω (NGZ and DGQ only): 2W (Typ)
  • Power Output at 5.0V, 1% THD+N, 8Ω: 1.25W (Typ)
  • Power Output at 3.0V, 1% THD+N, 4Ω: 600mW (Typ)
  • Power Output at 3.0V, 1% THD+N, 8Ω: 425mW (Typ)
  • Shutdown Current: 0.1µA (Typ)

All trademarks are the property of their respective owners.

  • Available in Space-Saving Packages: WSON, Exposed-DAP MSOP-PowerPAD, VSSOP, and DSBGA
  • Ultra Low Current Shutdown Mode
  • Improved Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
  • 2.2 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability
  • User Selectable Shutdown High or Low Logic Level

Key Specifications

  • Improved PSRR at 217Hz & 1KHz: 62dB
  • Power Output at 5.0V, 1% THD+N,
    • 4Ω (NGZ and DGQ only): 2W (Typ)
  • Power Output at 5.0V, 1% THD+N, 8Ω: 1.25W (Typ)
  • Power Output at 3.0V, 1% THD+N, 4Ω: 600mW (Typ)
  • Power Output at 3.0V, 1% THD+N, 8Ω: 425mW (Typ)
  • Shutdown Current: 0.1µA (Typ)

All trademarks are the property of their respective owners.

The LM4990 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.25 watts of continuous average power to an 8Ω BTL load and 2 watts of continuous average power (NGZ and DGQ only) to a 4Ω BTL load with less than 1% distortion (THD+N+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4990 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4990 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown.

The LM4990 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.

The LM4990 is unity-gain stable and can be configured by external gain-setting resistors.

The LM4990 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.25 watts of continuous average power to an 8Ω BTL load and 2 watts of continuous average power (NGZ and DGQ only) to a 4Ω BTL load with less than 1% distortion (THD+N+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4990 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4990 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown.

The LM4990 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.

The LM4990 is unity-gain stable and can be configured by external gain-setting resistors.

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* 데이터 시트 LM4990  2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level datasheet (Rev. E) 2013. 5. 2

설계 및 개발

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

패키지 핀 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YZR) 9 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
HVSSOP (DGQ) 10 Ultra Librarian
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