参数资料
| 型号： | AC164142 |
| 厂商： | Microchip Technology |
| 文件页数： | 37/38页 |
| 文件大小： | 0K |
| 描述： | BOARD DAUGHTER PWR LINE MODEM |
| 特色产品： | AC164142 PICtail? Plus Daughter Board |
| 标准包装： | 1 |
| 系列： | PICtail™ Plus |
| 主要目的： | 接口，电源线路收发器 |
| 嵌入式： | 否 |
| 主要属性： | AC 电源线收发器，BPSK 7.2 Kbps |
| 次要属性： | 需要 Explorer 16 板 |
| 已供物品： | 2 板，线缆，文档 |
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C.1.3
What are the important points to keep in mind while designing a
custom hardware solution using the schematics provided by
Microchip?
Following are the important points to keep in mind while designing a custom hardware
solution:
C.1.3.1
POWER SUPPLY RATING
It is important to have a power supply with sufficient rating to power the daughter board.
The daughter board can draw up to 600mA from the power supply. Do not use a pro-
gramming / debugging tool to power up the daughter board.
C.1.3.2
VENTILATION
Sufficient ventilation must be provided to avoid thermal runaway issues with the output
transistors. The output transistors have to be mounted on a large copper plane to
dissipate heat efficiently.
C.1.3.3
PCB DESIGN
Due to the very high gain of the receive path, it is very important to carefully design the
PCB layout. Output signals should not be routed near the inputs of preceding stages.
Ground return paths should be planned to run in straight lines to the common ground
reference point and return paths from the last stages should not run under preceding
stages.
C.1.4
What are the implications of using less than four Output
Compare (OC) channels for the daughter board?
Using less than four Output Compare (OC) channels will reduce the signal power trans-
mitted by the daughter board. Consequently, this can reduce the operating range and
performance.
C.1.5
What are the implications of running the dsPIC33F DSC at less
than 40 MIPS?
Running the dsPIC33F DSC at less than 40 MIPS may change the software timing
constants, and potentially render the modem software unusable.
? 2011 Microchip Technology Inc.
DS70656A-page 37
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