主页 音频 音频放大器 扬声器放大器
主页
音频
音频放大器
扬声器放大器

LM49120

正在供货

具有 I2C 接口的 1.3W 立体声、模拟输入 AB 类音频放大器

立即订购
数据表

LM49120

正在供货
数据表 立即订购

产品详情

Rating Catalog Operating temperature range (°C) -40 to 85
Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • 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

Key Specifications

  • Output Power at VDD = 5V:
    • 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)
  • 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)

All trademarks are the property of their respective owners.

  • 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

Key Specifications

  • Output Power at VDD = 5V:
    • 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)
  • 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)

All trademarks are the property of their respective owners.

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.

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.
open-in-new 查找其他 扬声器放大器
下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相似
LM49151 正在供货 具有集成 125mW 耳机放大器和 42mW 耳机放大器的 1.25W 单声道 D 级音频放大器 This product is a similar audio subsystem but with automatic limit control

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 1
类型 标题 下载最新的英语版本 日期
* 数据表 Audio Subsystem with Mono Class AB Loudspeaker Amp & Stereo OCL/SE Headphone Amp 数据表 (Rev. C) 2013年 5月 1日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
发送申请
封装 引脚 下载
DSBGA (YZR) 16 查看选项
应遵守 TI 评估类商品的标准条款与条件。

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

视频