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參數(shù)資料
| 型號： | CY3687 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | MoBL-USB⑩ FX2LP18 USB Microcontroller |
| 中文描述： | 的MoBL - USB FX2LP18的USB微控制器⑩ |
| 文件頁數(shù)： | 38/39頁 |
| 文件大小： | 453K |
| 代理商： | CY3687 |
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CY7C68053
Document # 001-06120 Rev *H
Page 38 of 39
12. PCB Layout Recommendations
The following recommendations must be followed to ensure
reliable high-performance operation.
■
At least a four-layer impedance controlled board is required to
maintain signal quality.
■
Specify impedance targets (ask your board vendor what they
can achieve).
■
To control impedance, maintain trace widths and trace spacing
to within specifications.
■
Minimize stubs to minimize reflected signals.
■
Connections between the USB connector shell and signal
ground must be done near the USB connector.
■
Bypass/flyback caps on VBus, near connector, are recom-
mended.
■
DPLUS and DMINUS trace lengths must be kept to within 2
mm of each other in length, with preferred length of 20–30 mm.
■
Maintain a solid ground plane under the DPLUS and DMINUS
traces. Do not allow the plane to be split under these traces.
■
It is preferable to have no vias placed on the DPLUS or
DMINUS trace routing.
■
Isolate the DPLUS and DMINUS traces from all other signal
traces by no less than 10 mm.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY3688 | 功能描述:界面開發(fā)工具 CY3688 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| CY3690 | 功能描述:開發(fā)板和工具包 - 其他處理器 USB 2.0 DVEL KIT RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| CY3691 | 功能描述:開發(fā)板和工具包 - 其他處理器 USB 2.0 DVEL KIT RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| CY3692 | 功能描述:時(shí)鐘和定時(shí)器開發(fā)工具 Socket adapter "for CY23FP12" RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| CY3693 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:PTG Programming Kit |
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