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LAN9215I-MT 参数 Datasheet PDF下载

LAN9215I-MT图片预览
型号: LAN9215I-MT
PDF下载: 下载PDF文件 查看货源
内容描述: 高效的单芯片10/100以太网控制器与HP Auto-MDIX的和工业温度支持 [Highly Efficient Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support]
分类和应用: 外围集成电路数据传输控制器局域网以太网局域网(LAN)标准时钟
文件页数/大小: 134 页 / 1602 K
品牌: SMSC [ SMSC CORPORATION ]
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Highly Efficient Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support  
Datasheet  
Table 7.6 10BASE-T Transceiver Characteristics  
PARAMETER  
SYMBOL  
MIN  
TYP  
MAX  
UNITS  
NOTES  
Transmitter Peak Differential  
Output Voltage  
VOUT  
2.2  
2.5  
2.8  
V
Note 7.6  
Receiver Differential Squelch  
Threshold  
VDS  
300  
420  
585  
mV  
Note 7.6 Measured at the line side of the transformer, line replaced by 100Ω (+/- 1%) resistor.  
7.5  
Clock Circuit  
The LAN9215I can accept either a 25MHz crystal (preferred) or a 25 MHz clock oscillator (±50 PPM)  
input. The LAN9215I shares the 25MHz clock oscillator input (CLKIN) with the crystal input  
XTAL1/CLKIN (pin 6).  
The Input Clock Duty Cycle is 40% minimum, 50% typical and 60% maximum.  
It is recommended that a crystal utilizing matching parallel load capacitors be used for the LAN9215I  
crystal input/output signals (XTAL1, XTAL2). See Table 7.7, "Crystal Specifications" for crystal  
specifications.  
Table 7.7 Crystal Specifications  
Frequency Tolerance @ 25° C  
Frequency Stability Over Temp  
Operating Temp Range  
Shunt Capacitance  
±50 PPM  
±50 PPM  
-40 to 85° C  
7.0 pF  
Load Capacitance  
20 pF ~ Parallel  
0.5 mW  
Drive Level  
Table 7.8 Recommended Crystals  
Fox Electronics  
FOXS/250F-20  
SMSC LAN9215I  
133  
Revision 1.5 (07-18-06)  
DATASHEET  
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