WMSIC Electronic Components

ADI/LINEAR MAX9759ETE+T MAX9759ETE

ModelMAX9759ETE+T
PackageTQFN-16(4x4)
BrandADI/LINEAR
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR MAX9759ETE+T
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX9759ETE+T
Electronic Component
1
Package
TQFN-16(4x4)
Electronic Component
92%
Electronic Component
Audio Power Amplifier
Electronic Component
0.17g
Electronic Component
93dB
Electronic Component
1
Power Amplifier Type
D Power Amplifier
Electronic Component
BM0263571481
Operating Temperature
40℃~+85℃
Operating Voltage
3V~5.5V
Output Power
4.3Wx1@3Ω
Channel Count
1

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MAX9759ETE+T 产品概述

一、产品简介

MAX9759ETE+T 是一款单声道 D 类音频功率放大器,工作电压范围为 3V 至 5.5V,适用于对功耗与音质都有较高要求的小型音频放大场合。器件以高效率和低失真为设计目标,能够在 3Ω 负载下输出 4.3W 峰值功率(4.3W x 1 @ 3Ω),并以紧凑的 TQFN-16(4 × 4 mm)封装交付,便于便携式终端与空间受限产品的系统集成。

二、主要参数与性能

  • 功放类型:D 类(开关式)功率放大器
  • 输出通道:单声道(1 路扬声器输出)
  • 输出功率:4.3 W × 1 @ 3Ω(典型)
  • 总谐波失真 + 噪声(THD+N):0.02%(表现优良的音频线性度)
  • 静态电流(Iq):8.4 mA(静态功耗低,有利于待机功耗控制)
  • 信噪比(SNR):93 dB(高动态范围,噪声底低)
  • 电源纹波抑制比(PSRR):81 dB(降低电源纹波对声音的影响)
  • 效率:高达 92%(D 类高效特性,减小发热)
  • 输入:1 对差分输入,支持差分信号以抑制共模噪声
  • 工作电压:3.0 V ~ 5.5 V
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装:TQFN-16(4×4 mm,带散热大地焊盘 EP)

三、功能亮点

  1. 高效率:高达 92% 的转换效率显著降低系统发热,对便携设备、手持扬声器极为友好。
  2. 优良音质:THD+N 仅 0.02% 且 SNR 达 93 dB,可在较高音量下保持清晰、低失真的音频输出。
  3. 强电源抗扰能力:PSRR 高达 81 dB,有助于在电源噪声环境中维持稳定音质。
  4. 差分输入:支持差分输入可抵抗布线与共模干扰,改善系统级 EMI 与噪声性能。
  5. 低静态电流:8.4 mA 的静态电流利于低功耗系统设计与延长电池续航。

四、典型应用场景

  • 便携式蓝牙音箱与智能音响
  • 平板、便携媒体播放器与家庭音频设备
  • 机顶盒与电视辅音频放大器(需验证系统兼容性)
  • 小型车载音频前端(需符合车规和 EMC 要求)
  • 任何对尺寸、效率与音质有平衡要求的单声道扬声器驱动场合

五、设计与使用建议

  • 电源去耦:在器件 VDD 引脚附近放置低 ESR 的陶瓷电容(例如 1µF~10µF)以降低瞬态响应与纹波。
  • 地与热管理:确保 TQFN 底部裸露散热焊盘(EP)有良好焊接到 PCB 大地平面,以利热量扩散与提高可靠性。
  • 布局布线:差分输入线尽量保持长度一致、靠近并远离高频开关回路;扬声器输出走线短而粗,避免与敏感模拟信号并行。
  • EMI 与滤波:D 类输出为高频开关波形,若系统对 EMI 较敏感或需通过法规测试,可在功放输出和扬声器间使用小型 LC 滤波器或按照参考设计添加 EMI 抑制元件。
  • 输入配置:差分输入可直接使用差分源;若系统只有单端信号,通过差分-单端转换或将负输入接到参考电位(遵循器件手册建议)以避免共模问题。
  • 保护与验证:请查阅官方数据手册确认短路、过温保护及开启/关闭顺序要求;在不同负载与温度条件下评估功率限制与热降额。
  • 评估板:建议使用厂商评估板或参考电路进行初期验证,加快产品开发周期并规避布局错误。

六、封装与订购信息

  • 封装:TQFN-16,封装尺寸 4 × 4 mm,带底部散热焊盘(EP)。
  • 型号:MAX9759ETE+T(建议于采购与设计时核对供应商型号、批次与库存信息)。

结语:MAX9759ETE+T 以高效率、低失真和良好的电源抑制性能,适合对体积与功耗有要求的单声道音频放大场合。为获得最优系统性能,请在设计前仔细参阅官方数据手册并进行样机验证。

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