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V62/12615-01XE-R датащи(PDF) 75 Page - Texas Instruments |
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V62/12615-01XE-R датащи(HTML) 75 Page - Texas Instruments |
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75 / 98 page ![]() MPU/CPU MII/RMII/SNI DP83848 10/100 MB/S 10Base-T or 100Base-T Status LEDs 25-MHZ Clock Source Typical Application 75 DP83848-EP www.ti.com SLLSEC6E – SEPTEMBER 2012 – REVISED JUNE 2019 Submit Documentation Feedback Product Folder Links: DP83848-EP Application and Implementation Copyright © 2012–2019, Texas Instruments Incorporated 6 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 6.1 Application Information The device is a physical layer Ethernet transceiver. Typical operating voltage is 3.3 V with typical power consumption less than 270 mW. When using the device for Ethernet application, it is necessary to meet certain requirements for normal operation of device. Following typical application and design requirements can be used for selecting appropriate component values for DP83848-EP. 6.2 Typical Application Figure 6-1. Typical Application 6.2.1 Design Requirements The design requirements for DP83848-EP are: • Vin = 3.3 V • Vout = Vcc – 0.5 V • Clock input = 25 MHz for MII and 50 MHz for RMII 6.2.1.1 TPI Network Circuit Figure 6-2 shows the recommended circuit for a 10/100 Mbps twisted pair interface. It is important that the user realize that variations with PCB and component characteristics requires that the application be tested to ensure that the circuit meets the requirements of the intended application. |
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