Through the power cord to connect high-speed home network established industry standards. Analog Devices’s Curt Wise forecast ,100-Mbit / s HomePlug AV specification will be approved this year by the industry.
For LAN, housing wiring in scope than the wireless advantage. But as a transmission medium, certain aspects of the yet to be improved. Since most CMOS D / A converter provides a current output, an irregular Z0 can convert the output pin voltage swing greatly.
Can be used for conventional applications and for power line LAN output, Analog Devices’s AD9865 (see illustration) to provide differential current output (upper right diagram). They can be directly transferred to an external load or internal low distortion current amplifier. For constant load, current amplifier (IAMP) can be configured for current mode line driver. For the power line, it can be configured for voltage mode (with two external NPN transistor), can generate 23-dBm peak signal .
