NXP TDA5051A家庭自动化调制解调解决方案

NXP 公司的TDA5051A是专用于ASK发送的调制解调器IC，适用于家庭动力线网络，传输速率600或1200波特，工作电压5V，集成了6位DAC和8位ADC，接收器输入端有自动增益控制（AGC），和EN50065-1兼容，外接元件少。主要应用在家用电器控制（如空调，照明，告警等），能量/加热控制以及采用家庭动力线网络的ASK数据发送。本文介绍了TDA5051A主要特性，方框图，多种应用电路以及TDA5051A动力线调制解调器评估板电路图和材料清单。
TDA5051A：Home automation modem
The TDA5051A is a modem IC, specifically dedicated to ASK transmission by means of the home power supply network, at 600 baud or 1200 baud data rate. It operates from a single 5 V supply.
TDA5051A主要特性：
Full digital carrier generation and shaping
Modulation/demodulation frequency set by clock adjustment, from microcontroller or on-chip oscillator
High clock rate of 6-bit D/A (Digital to Analog) converter for rejection of aliasing components
Fully integrated output power stage with overload protection
Automatic Gain Control (AGC) at receiver input
8-bit A/D (Analog to Digital) converter and narrow digital filtering
Digital demodulation delivering baseband data
Easy compliance with EN50065-1 with simple coupling network
Few external components for low cost applications
SO16 plastic package
TDA5051A应用：
Home appliance control (air conditioning, shutters, lighting, alarms and so on)
Energy/heating control
Amplitude Shift Keying (ASK) data transmission using the home power network

图1。TDA5051A方框图

图2。TDA5051A采用片内时钟的配置框图

图3。TDA5051A动力线不隔离的应用电路图

图4。TDA5051A动力线隔离的应用电路图

图5。TDA5051A动力线不隔离，改进灵敏度（68dBuV）的应用电路图

图6。TDA5051A动力线隔离，改进灵敏度（68dBuV）的应用电路图
TDA5051A动力线调制解调器评估板

图7。TDA5051A动力线调制解调器评估板外形图

图8。TDA5051A动力线调制解调器评估板电路图
动力线调制解调器评估板材料清单（BOM）：
 
详情请见：
http://www.nxp.com/documents/data_...