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LM48557

現行

具 I2C 音量控制和整合式 5.8 V 充電泵的單聲道、類比輸入、陶瓷揚聲器驅動器

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產品規格表

LM48557

現行
產品規格表 立即訂購

產品詳細資料

Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 80 Iq (typ) (mA) 5 Operating temperature range (°C) to Rating Catalog
Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 4.5 Speaker channels (max) Mono Audio input type Analog Shutdown current (ISD) (µA) 0.01 PSRR (dB) 80 Iq (typ) (mA) 5 Operating temperature range (°C) to Rating Catalog
DSBGA (YPD) 16 5.0625 mm² 2.25 x 2.25 DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • Integrated Charge Pump
  • Bridge-Tied Load Output
  • Differential Input
  • High PSRR
  • I2C 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 DSBGA Package

Key Specifications

  • Output Voltage at VDD = 4.2V
    • RL = 1µF +22Ω, THD+N ≤ 1%: 5.8 VRMS (Typ)

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

  • Integrated Charge Pump
  • Bridge-Tied Load Output
  • Differential Input
  • High PSRR
  • I2C 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 DSBGA Package

Key Specifications

  • Output Voltage at VDD = 4.2V
    • RL = 1µF +22Ω, THD+N ≤ 1%: 5.8 VRMS (Typ)

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

The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.

The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48557’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48557 is available in an ultra-small 16-bump DSBGA package (1.965mm x 1.965mm).

The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.

The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48557’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48557 is available in an ultra-small 16-bump DSBGA package (1.965mm x 1.965mm).
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類型 標題 日期
* Data sheet Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control & Reset datasheet (Rev. D) 2013年 5月 2日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發模組 (EVM) 的 GUI

SNAC003 — LM48557 Evaluation Board Software Installation

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產品
壓電式喇叭驅動器/接收器
LM48557 — 具 I2C 音量控制和整合式 5.8 V 充電泵的單聲道、類比輸入、陶瓷揚聲器驅動器
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模擬型號

LM48557 PSpice Model

SNAM134.ZIP (24 KB) - PSpice Model
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模擬型號

LM48557 TINA-TI Reference Design

SNAM133.TSC (795 KB) - TINA-TI Reference Design
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模擬型號

LM48557 TINA-TI Spice Model

SNAM132.ZIP (5 KB) - TINA-TI Spice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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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DSBGA (YPD) 16 檢視選項
DSBGA (YZR) 16 檢視選項
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