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參數資料
| 型號： | ADM6996L |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 6 port 10/100 Mb/s Single Chip Ethernet Switch Controller |
| 中文描述： | 6端口10/100 Mb / s的單芯片以太網交換機控制器 |
| 文件頁數： | 18/61頁 |
| 文件大?。?/td> | 1743K |
| 代理商： | ADM6996L |
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ADM6996L
Function Description
3.4 100Base-X Receiver
The 100Base-X receiver consists of functional blocks required to recover and condition
the 125Mbits/s receive data stream. The ADM6996L implements the 100Base-X
receiving state machine diagram as given in ANSI/IEEE Standard 802.3u, Clause 24. The
125Mbits/s receive data stream may originate from the on-chip twisted-pair transceiver in
a 100Base-TX application. Alternatively, the receive data stream may be generated by an
external optical receiver as in a 100Base-FX application.
The receiver block consists of the following functional sub-blocks:
A/D Converter
Adaptive Equalizer and timing recovery module
NRZI/NRZ and serial/parallel decoder
De-scrambler
Symbol alignment block
Symbol Decoder
Collision Detect Block
Carrier sense Block
Stream decoder block
3.4.1 A/D Converter
High performance A/D converter with 125Mhz sampling rate converts signals received
on RXP/RXN pins to 6 bits data streams; besides it possess auto-gain-control capability
that will further improve receive performance especially under long cable or harsh
detrimental signal integrity. Due to high pass characteristic on transformer, built in base-
line-wander correcting circuit will cancel it out and restore its DC level.
3.4.2 Adaptive Equalizer and timing Recovery Module
All digital design is especial immune from noise environments and achieves better
correlation between production and system testing. Baud rate Adaptive Equalizer/Timing
Recovery compensates line loss induced from twisted pair and tracks far end clock at
125M samples per second. Adaptive Equalizer implemented with Feed forward and
Decision Feedback techniques meet the requirement of BER less than 10-12 for
transmission on CAT5 twisted pair cable ranging from 0 to 120 meters.
3.4.3 NRZI/NRZ and Serial/Parallel Decoder
The recovered data is converted from NRZI to NRZ. The data is not necessarily aligned
to 4B/5B code group’s boundary.
Infineon-ADMtek Co. Ltd.
3-2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM6996LAAT1 | 功能描述:IC SWITCH CTRLR 10/100 128PQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應商設備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
| ADM6996L-AA-T-1 | 制造商:Rochester Electronics LLC 功能描述:ETHERNET SWITCH - Bulk |
| ADM6996LAAT1NP | 制造商:Infineon Technologies AG 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 128-Pin MQFP Tray |
| ADM6996LC | 制造商:Infineon Technologies AG 功能描述: |
| ADM6996LC-AC-R-1 | 功能描述:IC ETHERNET SW CTRLR 128-PQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應商設備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
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