LM4923

ACTIVO

Amplificador de audio mono de Clase AB, entrada analógica completamente diferencial y 1.1 W

Detalles del producto

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 8 Output power (W) 1.5 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 4 Control interface Hardware Analog supply (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 PSRR (dB) 85 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Rating Catalog Load (min) (Ω) 8 Output power (W) 1.5 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 4 Control interface Hardware Analog supply (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 PSRR (dB) 85 Operating temperature range (°C) -40 to 85
VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WQFN (NGP) 8 4 mm² 2 x 2
  • Fully Differential Amplification
  • Available in Space-saving WQFN Package
  • Ultra Low Current Shutdown Mode
  • Can Drive Capacitive Loads up to 100pF
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions
  • 2.4 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required

Key Specifications

  • Improved PSRR at 217Hz 85dB(typ)
  • Power Output at 5.0V @ 1% THD+N 1.1W(typ)
  • Power Output at 3.3V @ 1% THD+N 400mW(typ)
  • Shutdown Current 0.1μA(typ)

All trademarks are the property of their respective owners.

  • Fully Differential Amplification
  • Available in Space-saving WQFN Package
  • Ultra Low Current Shutdown Mode
  • Can Drive Capacitive Loads up to 100pF
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions
  • 2.4 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required

Key Specifications

  • Improved PSRR at 217Hz 85dB(typ)
  • Power Output at 5.0V @ 1% THD+N 1.1W(typ)
  • Power Output at 3.3V @ 1% THD+N 400mW(typ)
  • Shutdown Current 0.1μA(typ)

All trademarks are the property of their respective owners.

The LM4923 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+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 LM4923 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 LM4923 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown protection mechanism.

The LM4923 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4923 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+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 LM4923 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 LM4923 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown protection mechanism.

The LM4923 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.

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Documentación técnica

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Tipo Título Fecha
* Data sheet 1.1W Fully Differential Audio Power Amp w/Shutdown Select datasheet (Rev. E) 01 may 2013

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

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