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LM48411

アクティブ

選択可能なゲイン /EMI 抑制機能搭載、2.5W、ステレオ、アナログ入力 Class-D オーディオ・アンプ

ご注文はこちら
データシート

LM48411

アクティブ
データシート ご注文はこちら

製品詳細

Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Load (min) (Ω) 4 Output power (W) 2.5 SNR (dB) 96 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 5.1 Control interface GPIO Analog supply (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 PSRR (dB) 78 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Load (min) (Ω) 4 Output power (W) 2.5 SNR (dB) 96 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 5.1 Control interface GPIO Analog supply (min) (V) 2.4 Analog supply voltage (max) (V) 5.5 PSRR (dB) 78 Operating temperature range (°C) -40 to 85
  • E2S System Reduces EMI Preserving Audio Quality and Efficiency
  • Output Short Circuit Protection
  • Stereo Class D Operation
  • No Output Filter Required for Inductive Loads
  • Logic Selectable Gain
  • Independent Shutdown Control
  • Minimum External Components
  • "Click and Pop" Suppression Circuitry
  • Micro-Power Shutdown Mode
  • Available in Space-Saving 0.5mm Pitch DSBGA Package

Key Specifications

  • Efficiency at 3.6V, 500mW into 8Ω Speaker: 87% (typ)
  • Efficiency at 3.6V, 100mW into 8Ω Speaker: 80% (typ)
  • Efficiency at 5V, 1W into 8Ω Speaker:
    88% (typ)
  • Quiescent Current, 3.6V Supply: 4.2mA (typ)
  • Power Output at VDD = 5V RL = 4Ω, THD ≤ 10%: 2.5W (typ)
  • Power Output at VDD = 5V RL = 8Ω, THD ≤ 10%: 1.5W (typ)
  • Total Shutdown Power Supply Current:
    0.01µA (typ)
  • Single Supply Range: 2.4V to 5.5V

All trademarks are the property of their respective owners.

  • E2S System Reduces EMI Preserving Audio Quality and Efficiency
  • Output Short Circuit Protection
  • Stereo Class D Operation
  • No Output Filter Required for Inductive Loads
  • Logic Selectable Gain
  • Independent Shutdown Control
  • Minimum External Components
  • "Click and Pop" Suppression Circuitry
  • Micro-Power Shutdown Mode
  • Available in Space-Saving 0.5mm Pitch DSBGA Package

Key Specifications

  • Efficiency at 3.6V, 500mW into 8Ω Speaker: 87% (typ)
  • Efficiency at 3.6V, 100mW into 8Ω Speaker: 80% (typ)
  • Efficiency at 5V, 1W into 8Ω Speaker:
    88% (typ)
  • Quiescent Current, 3.6V Supply: 4.2mA (typ)
  • Power Output at VDD = 5V RL = 4Ω, THD ≤ 10%: 2.5W (typ)
  • Power Output at VDD = 5V RL = 8Ω, THD ≤ 10%: 1.5W (typ)
  • Total Shutdown Power Supply Current:
    0.01µA (typ)
  • Single Supply Range: 2.4V to 5.5V

All trademarks are the property of their respective owners.

The LM48411 is a single supply, high efficiency, 2.5W/channel Class D audio amplifier. The LM48411 features TI's Enhanced Emissions Suppression (E2S) system, that features a unique patent-pending ultra low EMI, spread spectrum, PWM architecture, that significantly reduces RF emissions while preserving audio quality and efficiency. The E2S system improves battery life, reduces external component count, board area consumption, system cost, and simplifying design.

The LM48411 is designed to meet the demands of mobile phones and other portable communication devices. Operating on a single 5V supply, it is capable of delivering 2.5W/channel of continuous output power to a 4Ω load with less than 10% THD+N. Its flexible power supply requirements allow operation from 2.4V to 5.5V. The wide band spread spectrum architecture of the LM48411 reduces EMI-radiated emissions due to the modulator frequency.

The LM48411 features high efficiency compared to a conventional Class AB amplifier. The E2S system includes an advanced, patent-pending edge rate control (ERC) architecture that further reduce emissions by minimizing the high frequency component of the device output, while maintaining high quality audio reproduction and high efficiency (η = 87% at VDD = 3.6V, PO = 500mW). Four gain options are pin selectable through GAIN0 and GAIN1 pins.

The LM48411 features a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low (GND).

Output short circuit protection prevents the device from being damaged during fault conditions. Superior click and pop suppression eliminates audible transients on power up/down and during shutdown. Independent left/right shutdown control maximizes power savings in mixed mono/stereo applications.

The LM48411 is a single supply, high efficiency, 2.5W/channel Class D audio amplifier. The LM48411 features TI's Enhanced Emissions Suppression (E2S) system, that features a unique patent-pending ultra low EMI, spread spectrum, PWM architecture, that significantly reduces RF emissions while preserving audio quality and efficiency. The E2S system improves battery life, reduces external component count, board area consumption, system cost, and simplifying design.

The LM48411 is designed to meet the demands of mobile phones and other portable communication devices. Operating on a single 5V supply, it is capable of delivering 2.5W/channel of continuous output power to a 4Ω load with less than 10% THD+N. Its flexible power supply requirements allow operation from 2.4V to 5.5V. The wide band spread spectrum architecture of the LM48411 reduces EMI-radiated emissions due to the modulator frequency.

The LM48411 features high efficiency compared to a conventional Class AB amplifier. The E2S system includes an advanced, patent-pending edge rate control (ERC) architecture that further reduce emissions by minimizing the high frequency component of the device output, while maintaining high quality audio reproduction and high efficiency (η = 87% at VDD = 3.6V, PO = 500mW). Four gain options are pin selectable through GAIN0 and GAIN1 pins.

The LM48411 features a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low (GND).

Output short circuit protection prevents the device from being damaged during fault conditions. Superior click and pop suppression eliminates audible transients on power up/down and during shutdown. Independent left/right shutdown control maximizes power savings in mixed mono/stereo applications.
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種類 タイトル 最新の英語版をダウンロード 日付
* データシート Ultra-Low EMI, Filterless, 2.5W, Stereo, Class D Audio Power Amplifier w/E2S データシート (Rev. G) 2013年 5月 1日

購入と品質

記載されている情報：
  • RoHS
  • REACH
  • デバイスのマーキング
  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
  • MTBF/FIT 推定値
  • 使用原材料
  • 認定試験結果
  • 継続的な信頼性モニタ試験結果
記載されている情報：
  • ファブの拠点
  • 組み立てを実施した拠点

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