LM48823

アクティブ

I2C ボリューム制御機能搭載、5.4V チャージ・ポンプ内蔵、モノラル、アナログ入力、セラミック・スピーカ・ドライバ

製品詳細

Analog supply (min) (V) 2 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 93 Iq (typ) (mA) 3.3 Operating temperature range (°C) to Rating Catalog
Analog supply (min) (V) 2 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 93 Iq (typ) (mA) 3.3 Operating temperature range (°C) to Rating Catalog
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25

  • Integrated Charge Pump
  • Bridge-tied Load Output
  • High PSRR
  • I 2 C Volume and Mode Control
  • Reset Input
  • Advanced Click-and-Pop Suppression
  • Low Supply Current
  • Minimum external components
  • Micro-power shutdown
  • Available in space-saving 16-bump µSMD package

  • Integrated Charge Pump
  • Bridge-tied Load Output
  • High PSRR
  • I 2 C Volume and Mode Control
  • Reset Input
  • Advanced Click-and-Pop Suppression
  • Low Supply Current
  • Minimum external components
  • Micro-power shutdown
  • Available in space-saving 16-bump µSMD package

  • The LM48823 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48823 charge pump allows the device to deliver 5.4VRMS from a single 4.2V supply.

    The LM48823 features high power supply rejection ratio (PSRR), 93dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.0V to 4.5V. The LM48823 features an active low reset input that reverts the device to its default state. Additionally, the LM48823 features a 32-step I 2C volume control. The low power Shutdown mode reduces supply current consumption to 0.01µA.

    The LM48823’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48823 is available in an ultra-small 16-bump micro SMD package (2mmx2mm).


    Key Specifications

    Output Voltage at VDD = 4.2V,  RL = 2.2µF + 15Ω THD+N 1% 5.4VRMS (typ)
    Quiescent Power Supply Current  at 4.2V 3.3mA (typ)
    PSRR at 217Hz 93dB (typ)
    Shutdown current 0.01μA (typ)

    The LM48823 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48823 charge pump allows the device to deliver 5.4VRMS from a single 4.2V supply.

    The LM48823 features high power supply rejection ratio (PSRR), 93dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.0V to 4.5V. The LM48823 features an active low reset input that reverts the device to its default state. Additionally, the LM48823 features a 32-step I 2C volume control. The low power Shutdown mode reduces supply current consumption to 0.01µA.

    The LM48823’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48823 is available in an ultra-small 16-bump micro SMD package (2mmx2mm).


    Key Specifications

    Output Voltage at VDD = 4.2V,  RL = 2.2µF + 15Ω THD+N 1% 5.4VRMS (typ)
    Quiescent Power Supply Current  at 4.2V 3.3mA (typ)
    PSRR at 217Hz 93dB (typ)
    Shutdown current 0.01μA (typ)

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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 Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control and Reset データシート (Rev. E) 2010年 10月 8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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