高效便携式媒体播放器 (PMP) 集线站 HIGHEFFPMPDOCK-REF (正在供货)

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描述

The High Efficiency Portable Media Player (PMP) Docking Station reference design showcases Texas Instruments' PowerWise® power converters, battery charging circuitry, audio drivers and display interface. The reference design saves more power by initiating a power-saving mode when the PMP is unplugged from the wall power, automatically reducing the maximum brightness of the display as well as the output power of the audio drivers. See Figure 1 which shows the power management and audio segments of the reference design.

The LM3658SD-A dual source, USB/AC Li chemistry charger IC receives a wall wart or USB input and converts either input into a source voltage, using the LM20124 synchronous buck regulator, powers the docking station as well as providing the charging current to an external Lithium-Ion back-up battery pack.

The LM20124 provides the source voltage which biases both the audio and DS90UR241/124 serializer/deserializer (SERDES) segments of the video transport sections of the system. The LM4674 stereo Class D audio amplifier drives two 2W speakers. The LM2735Y Boost and SEPIC DC-DC Regulator boosts the 3.3VDC output to 5VDC, which supplies the bias voltage needed to charge the PMP device when docked in the docking station connector. Additionally, the wall wart also feeds an LM3478 Low-Side N-Channel Controller which boosts the voltage to 12VDC and provides power to the AVP-1280 video interface controller. The AVP-1280 converts the analog video output signal from the docking station into digital inputs for processing by the DS90UR241 serializer segment. Finally, the output of the DS90UR124 deserializer is taken and displayed by the Sharp LQ104S1DG21 TFT-LCD display, which is illuminated by an LED backlight with dimming capability.

特性
Inputs Output #1 Output #2 Output #3
  VinMin=4.5V     Vout1=3.3V     Vout2=5V     Vout3=12V  
  VinMax=6V     Iout1=0.9A     Iout2=1.5A     Iout3=0.1A  
  • 20W Wake-On-Load AC/DC Adapter provide source voltage to entire system.
  • Wall wart adapter or USB charging capability to Lithium-Ion battery backup.
  • Provides charging current for PMP device when docked in docking station connector.
  • Detachable LCD Display can be removed at least 10 meters from base.
  • Stereo Class D Audio Amplifier with logic selectable gain.
  • Low profile, high efficiency power management design.
  • Efficient LED Backlight Solution provides lighting to LCD Display.

 



  




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器件型号 状态

HIGHEFFPMPDOCK-REF:
High Efficiency Portable Media Player (PMP) Docking Station

ACTIVE

TI 器件 (6)

订购样片,获取工具,查找此参考设计中有关 TI 产品的更多信息。

器件型号 名称 产品系列 样片或购买 设计套件与评估模块
DS90UR124  5-43MHz DC 平衡 24 位 FPD 链接 II 解串器  FPD-Link SerDes  样片或购买 查看设计套件与评估模块
DS90UR124-Q1  5-43MHz DC 平衡 24 位 FPD 链接 II 解串器  FPD-Link SerDes  样片或购买 查看设计套件与评估模块
DS90UR241  5-43MHz DC 平衡 24 位 FPD 链接 II 串行器  FPD-Link SerDes  样片或购买 查看设计套件与评估模块
DS90UR241-Q1  5-43MHz DC 平衡 24 位 FPD 链接 II 串行器  FPD-Link SerDes  样片或购买 查看设计套件与评估模块
LM20124  汽车级可选的 2.95-5.5V、4A、电流模式同步降压稳压器  降压(降压)  样片或购买 不可用
LM3658  用于便携式应用的双源 USB/AC 锂化学充电器 IC  电池管理  样片或购买 查看设计套件与评估模块

符号和封装

型号 封装 | 引脚 CAD File (.bxl) STEP Model (.stp)
DS90UR124 下载 下载
DS90UR124-Q1 下载
DS90UR241 下载 下载
DS90UR241-Q1 下载
LM20124 下载 下载
LM3658 下载

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

步骤 1: 下载并安装 读取器软件 免费下载.

步骤 2: 从 CAD.bxl 文件表中下载符号和封装。


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标题 类型 大小 (KB) 日期 下载最新英文版本
PDF 5469 2012年 1月 27日

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