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參數(shù)資料
| 型號： | AM79C98PC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | Twisted-Pair Ethernet Transceiver (TPEX) |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PDIP24 |
| 封裝： | SLIM, PLASTIC, DIP-24 |
| 文件頁數(shù)： | 10/22頁 |
| 文件大?。?/td> | 213K |
| 代理商： | AM79C98PC |
10
Am79C98
In both modes, the jabber circuitry, collision detection,
and collision oscillator functions are disabled and the
AUI and RXD+/– squelch circuits are active.
TPEX External Components
Figure 1 shows a typical twisted-pair port external
components schematic. The resistors used should
have a
±
1% tolerance to ensure interoperability with
10BASE-T-compliant networks. Filters and pulse trans-
formers are necessary devices that have a major influ-
ence on the performance and compliance of a TPEX-
based MAU. Specifically, the transmitted waveforms
are heavily influenced by filter characteristics and the
twisted-pair receivers employ several criteria to contin-
uously monitor the incoming signal’s amplitude and
timing characteristics to determine when and if to as-
sert the internal carrier sense. For these reasons, it is
crucial that the values and tolerances of the external
components be as specified. Several manufacturers
produce a module that combines the functions of the
transmit and receive filters and the pulse transformers
into one package.
Note:
The ilter/transformer module shown is available from the following manufacturers: Belfuse, TDK, Pulse Engineering, PCA, Valor
Electronics, and Nano Pulse.
Figure 1. Typical Twisted-Pair Port External Components
14395D-5
57.6
324.0
768.0
57.6
324.0
100
Am79C100
TPEX
TXD+
TXP+
TXD–
TXP–
RXD+
RXD–
XMIT
Filter
RECV
Filter
1:1
1:1
TD+
TD–
RD+
RD–
Twisted-Pair
Cable
Module
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相關(guān)代理商/技術(shù)參數(shù) |
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| AM79C98PC/B | 制造商:Advanced Micro Devices 功能描述:79C98PC/B |
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| AM79CV12PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM |
| AM79CV12PCB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MODEM |
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