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

LM49153

正在供货

具有非削波噪声门的 1.35W 立体声、模拟输入 AB 类音频放大器

立即订购
数据表

LM49153

正在供货
数据表 立即订购

产品详情

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1.35 SNR (dB) 98 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 1.2 Control interface I2C Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 94 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.7 Load (min) (Ω) 8 Output power (W) 1.35 SNR (dB) 98 THD + N at 1 kHz (%) 0.02 Iq (typ) (mA) 1.2 Control interface I2C Closed/open loop Open Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 PSRR (dB) 94 Operating temperature range (°C) -40 to 85
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • Class G Ground Referenced Headphone Outputs
  • High Efficiency Class D Amplifier with Spread Spectrum
  • No Clip
  • Speaker Protection
  • Noise Gate
  • I2C Volume and Mode Control
  • Advanced Click-and-Pop Suppression
  • Micro-Power Shutdown

Key Specifications

  • Class G Headphone Amplifier,
    HPVDD = 1.8V, RL = 32Ω
    • IDDQHP, 1.2mA (Typ)
    • POUT, THD+N ≤ 1%, 25mW (Typ)
    • HP VOS, 0.5mV (Typ)
  • Mono Class D Speaker Amplifier,
    RL = 8Ω, THD+N < 1%
    • POUT, LSVDD = 5.0V, 1.35W (Typ)
    • POUT, LSVDD = 3.6V, 680mW (Typ)
    • Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

  • Class G Ground Referenced Headphone Outputs
  • High Efficiency Class D Amplifier with Spread Spectrum
  • No Clip
  • Speaker Protection
  • Noise Gate
  • I2C Volume and Mode Control
  • Advanced Click-and-Pop Suppression
  • Micro-Power Shutdown

Key Specifications

  • Class G Headphone Amplifier,
    HPVDD = 1.8V, RL = 32Ω
    • IDDQHP, 1.2mA (Typ)
    • POUT, THD+N ≤ 1%, 25mW (Typ)
    • HP VOS, 0.5mV (Typ)
  • Mono Class D Speaker Amplifier,
    RL = 8Ω, THD+N < 1%
    • POUT, LSVDD = 5.0V, 1.35W (Typ)
    • POUT, LSVDD = 3.6V, 680mW (Typ)
    • Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device.

The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection.

Mode selection, shutdown control, and volume are controlled through an I2C compatible interface.

Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).

The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device.

The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection.

Mode selection, shutdown control, and volume are controlled through an I2C compatible interface.

Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).
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

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 Mono Audio w/Class G Headphone Amp, Class D Spkr Amp, Noise Gate & Spkr Protect 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 (YFQ) 25 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

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频