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LM48823

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具有 I2C 音量控制和集成式 5.4V 电荷泵的单声道、模拟输入陶瓷扬声器驱动器

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LM48823

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产品详情

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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    类型 标题 下载最新的英语版本 日期
    * 数据表 Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control and Reset 数据表 (Rev. E) 2010年 10月 8日

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    DSBGA (YZR) 16 查看选项
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    订购和质量

    包含信息：
    • RoHS
    • REACH
    • 器件标识
    • 引脚镀层/焊球材料
    • MSL 等级/回流焊峰值温度
    • MTBF/时基故障估算
    • 材料成分
    • 鉴定摘要
    • 持续可靠性监测
    包含信息：
    • 制造厂地点
    • 封装厂地点

    支持和培训

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