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LM49120TLX/NOPB

Texas Instruments 音频 IC
  • 参考价格:¥7.04-¥7.66

更新日期:2024-04-01 00:04:00

LM49120TLX/NOPB

Texas Instruments 音频 IC

产品简介:具有 I2C 接口的 1.3W 立体声、模拟输入 AB 类音频放大器

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  • 参考价格:¥7.04-¥7.66

LM49120TLX/NOPB 供应商

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LM49120TLX/NOPB 中文资料属性参数

  • 制造商:National Semiconductor (TI)
  • 产品:Class-AB
  • 输出功率:1.3 W x 1 at 8 Ohms, 0.085 W x 2 at 32 Ohms
  • 输出类型:1-Channel Mono, 2-Channel Stereo
  • 共模抑制比(最小值):61 dB (Typ)
  • THD + 噪声:0.05 %, 0.015 %
  • 电源电流:7.2 mA at 5 V
  • 最大工作温度:+ 85 C
  • 安装风格:SMD/SMT
  • 封装 / 箱体:uSMD
  • 封装:Reel
  • 音频负载电阻:32 Ohms
  • 双重电源电压:3 V, 5 V
  • 输入信号类型:Differential
  • 最小工作温度:- 40 C
  • 输出信号类型:Differential, Single
  • 工厂包装数量:3000
  • 电源类型:Dual

产品特性

  • RF Immunity
  • Selectable OCL/SE Headphone Drivers
  • 32 Step Volume Control
  • Click and Pop Suppression
  • Independent Speaker and Headphone Gain Settings
  • Minimum External Components
  • Thermal Over Load Protection
  • Micro-power Shutdown
  • Space Saving 16–bump DSBGA Package
  • Thermal Shutdown Protection
  • Micro-power Shutdown
  • I2C Control Interface
  • Output Power at VDD = 5V:Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.3W (typ)Headphone: RL = 32Ω, SE, THD+N ≤ 1%: 85mW (typ)
  • Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.3W (typ)
  • Headphone: RL = 32Ω, SE, THD+N ≤ 1%: 85mW (typ)
  • Output Power at VDD = 3.6V:Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 632mW (typ)
  • Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 632mW (typ)
  • Output Power at VDD = 3.3V:Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 540mW (typ)Headphone: RL = 32Ω, OCL/SE, THD+N ≤ 1%: 35mW (typ)
  • Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 540mW (typ)
  • Headphone: RL = 32Ω, OCL/SE, THD+N ≤ 1%: 35mW (typ)

产品概述

The LM49120 is a compact audio subsystem designed for portable handheld applications such as cellular phones. The LM49120 combines a mono 1.3W speaker amplifier, stereo 85mW/ch output capacitorless headphone amplifier, 32 step volume control, and an input mixer/multiplexer into a single 16–bump DSBGA package.The LM49120 has three input channels: two single-ended stereo inputs and a differential mono input. Each input features a 32-step digital volume control. The headphone output stage features an 8 step (-18dB – 0dB) attenuator, while the speaker output stage has two selectable (0dB/+6dB) gain settings. The digital volume control and mode control are programmed through a two-wire I2C compatible interface.

LM49120TLX/NOPB 电路图

LM49120TLX/NOPB 电路图

LM49120TLX/NOPB 电路图

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