參數(shù)資料
型號: 1894-40KLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 網絡接口
英文描述: DATACOM, INTERFACE CIRCUIT, QCC40
封裝: 6 X 6 MM, ROHS COMPLIANT, QFN-40
文件頁數(shù): 22/52頁
文件大小: 459K
代理商: 1894-40KLFT
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
IDT / ICS 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE 29
ICS1894-40
REV C 092909
ICS1893CK-40 TCSR
Note:
1. The bias resistor networks set the 10baseT and 100baseTX output amplitude levels.
2. Amplitude is directly related to current sourced out of the TCSR pin.
3. Resistor values shown above are typical. User should check amplitudes and adjust for transformer effects.
4. The VDD connection to the 18.2K resistor can connect to any VDD. The 18.2K resistor provides negative
feedback to compensate for VDD changes. Lowering the 18.2K value will lower the 100baseT amplitude.
Typical Board Layouts
TCSR Bias Resistors
ICS1894CK-40
89
VDD
TCSR
VDD
18.2K
1%
1.82K
1%
100TCSR
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