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參數資料
| 型號： | AD9877-EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Mixed-Signal Front End Set-Top Box, Cable Modem |
| 中文描述： | 混合信號前端機頂盒，電纜調制解調器 |
| 文件頁數： | 34/36頁 |
| 文件大小： | 1094K |
| 代理商： | AD9877-EB |
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AD9877
SIGNAL ROUTING
The digital Rx and Tx signal paths should be kept as short as
possible. Also, these traces should have a controlled impedance
of about 50 Ω. This prevents poor signal integrity and the high
currents that can occur during undershoot or overshoot caused
by ringing. If the signal traces cannot be kept shorter than
approximately 1.5 inches, then series termination resistors
(33 Ω to 47 Ω) should be placed close to all signal sources. It is a
good idea to series terminate all clock signals at their source
regardless of trace length.
Rev. B | Page 34 of 36
The receive (I IN, Q IN, and RF IN) signals are the most
sensitive signals on the board. Careful routing of these signals is
essential for good receive path performance. The Rx± signals
form a differential pair and should be routed together as a pair.
By keeping the traces adjacent to each other, noise coupled onto
the signals appears as common-mode and is largely rejected by
the MxFE receive input. Keeping the driving point impedance
of the receive signal low and placing any low-pass filtering of
the signals close to the MxFE further reduces the possibility of
noise corrupting these signals.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9878 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Mixed-Signal Front End for Broadband Applications |
| AD9878BST | 制造商:Analog Devices 功能描述:Mixed Signal Front End 100-Pin LQFP |
| AD9878BSTRL | 制造商:Analog Devices 功能描述:Mixed Signal Front End 100-Pin LQFP T/R 制造商:Analog Devices 功能描述:MIXED SGNL FRONT END 100LQFP - Tape and Reel |
| AD9878BSTZ | 功能描述:IC FRONT-END MIXED-SGNL 100-LQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模擬前端 (AFE) 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:- 通道數:2 功率（瓦特）:- 電壓 - 電源，模擬:3 V ~ 3.6 V 電壓 - 電源，數字:3 V ~ 3.6 V 封裝/外殼:32-VFQFN 裸露焊盤 供應商設備封裝:32-QFN（5x5） 包裝:帶卷 (TR) |
| AD9878-EB | 制造商:Analog Devices 功能描述:EVAL KIT FOR MIXED-SGNL FRONT END FOR BROADBAND APPLICATIONS - Bulk |
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