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LM4835

ACTIVO

Amplificador de audio estéreo de Clase AB, entrada analógica y 2 W con control de volumen, ganancia

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LM4835

ACTIVO
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Detalles del producto

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Load (min) (Ω) 3 Output power (W) 2.5 SNR (dB) 93 THD + N at 1 kHz (%) 0.3 Iq (typ) (mA) 15 Control interface Hardware Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 74 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Load (min) (Ω) 3 Output power (W) 2.5 SNR (dB) 93 THD + N at 1 kHz (%) 0.3 Iq (typ) (mA) 15 Control interface Hardware Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 74 Operating temperature range (°C) -40 to 85
TSSOP (PW) 28 62.08 mm² 9.7 x 6.4
  • PC98 Compliant
  • DC Volume Control Interface
  • System Beep Detect
  • Stereo Switchable Bridged/Single-Ended Power Amplifiers
  • Selectable Internal/External Gain and Bass Boost Configurable
  • “Click and Pop” Suppression Circuitry
  • Thermal Shutdown Protection Circuitry

Key Specifications

  • PO at 1% THD+N into 3Ω (LM4835LQ, LM4835MTE) 2.2 W (typ)
  • PO at 1% THD+N into 4Ω (LM4835LQ, LM4835MTE) 2.0 W (typ)
  • PO at 1% THD+N into 8Ω (LM4835) 1.1 W (typ) 1.0 % (typ)
  • Single-Ended Mode - THD+N at 85mW into 32Ω
  • Shutdown Current 0.7 µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

  • PC98 Compliant
  • DC Volume Control Interface
  • System Beep Detect
  • Stereo Switchable Bridged/Single-Ended Power Amplifiers
  • Selectable Internal/External Gain and Bass Boost Configurable
  • “Click and Pop” Suppression Circuitry
  • Thermal Shutdown Protection Circuitry

Key Specifications

  • PO at 1% THD+N into 3Ω (LM4835LQ, LM4835MTE) 2.2 W (typ)
  • PO at 1% THD+N into 4Ω (LM4835LQ, LM4835MTE) 2.0 W (typ)
  • PO at 1% THD+N into 8Ω (LM4835) 1.1 W (typ) 1.0 % (typ)
  • Single-Ended Mode - THD+N at 85mW into 32Ω
  • Shutdown Current 0.7 µA (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

The LM4835 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD (see Notes below).

Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4835 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

The LM4835 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

NOTE: When properly mounted to the circuit board, the LM4835LQ and LM4835MTE will deliver 2W into 4Ω. The LM4835MT will deliver 1.1W into 8Ω. See the section LM4835LQ and for LM4835MTE usage information.

NOTE: An LM4835LQ and LM4835MTE that have been properly mounted to the circuit board and forced-air cooled will deliver 2.2W into 3Ω.

The LM4835 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD (see Notes below).

Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4835 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.

The LM4835 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.

NOTE: When properly mounted to the circuit board, the LM4835LQ and LM4835MTE will deliver 2W into 4Ω. The LM4835MT will deliver 1.1W into 8Ω. See the section LM4835LQ and for LM4835MTE usage information.

NOTE: An LM4835LQ and LM4835MTE that have been properly mounted to the circuit board and forced-air cooled will deliver 2.2W into 3Ω.
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Documentación técnica

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* Data sheet LM4835 Stereo 2W Audio Pwr Amp w/DC Vol Cntrl & Selectable Gain datasheet (Rev. F) 01 may 2013

Diseño y desarrollo

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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