제품 상세 정보

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 Load (min) (Ω) 4 Output power (W) 2 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 64 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 Load (min) (Ω) 4 Output power (W) 2 THD + N at 1 kHz (%) 0.2 Iq (typ) (mA) 4 Control interface Hardware Closed/open loop Closed Analog supply (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 PSRR (dB) 64 Operating temperature range (°C) -40 to 85
DSBGA (YZR) 9 3.0625 mm² 1.75 x 1.75 HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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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* Data sheet LM4990  2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level datasheet (Rev. E) 2013/05/02

설계 및 개발

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시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
패키지 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YZR) 9 Ultra Librarian
HVSSOP (DGQ) 10 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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