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AFBR-0545Z Datasheet(PDF) 3 Page - AVAGO TECHNOLOGIES LIMITED |
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AFBR-0545Z Datasheet(HTML) 3 Page - AVAGO TECHNOLOGIES LIMITED |
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3 / 5 page  3 Figure 3. AFBR-0545Z media converter evaluation board AFBR-0545Z Circuit Design The schematic for the AFBR-0545Z media converter board is shown in Figure 2. The data signal from the twisted pair medium is routed through magnetic (part of RJ 45 jack)to the IC Plus IP113ALF input media converter input pins (RXIP and RXIM). The IP113ALF is configured for 100 Mbps full duplex mode. The transmitter output of the IP113ALF (FXTDP and FXTDM) is AC coupled to the input of the Avago AFBR-5972Z transceiver module through a differential transmission line with a 100 impedance. Resistor R103 is not populated because AFBR-5972Z has an internal 100 resistor for termination (see AFBR-5972Z data sheet). Resistor R112 provides a 100 termination for the receiver of the AFBR-5972Z module. The voltage divider between the IP113ALF and AFBR-5972Z module biases the IP113ALF PHY chip. Resistors R117 and R118 are needed as termination of the receiver output stage of AFBR-5972Z. The signal detect (SD) output signal of the transceiver module is connected to the PHY chip FXSD pin through the voltage divider formed by resistors R111 and R116. The FXSD pin is active when the threshold voltage is higher than 1.35 V. LED2 and LED1 (in Figure 3) provides visual information about the presence of supply voltage at AFBR-5972Z module and RJ 45 jack respectively. LED1 also provides information about twisted pair link connection. LED2 provides information about the full duplex optical link connection. Fast Ethernet Measurement Setup The Fast Ethernet measurement setup converts the data signal from the twisted pair domain to the optical domain and back again to the twisted pair domain. The Fast Ethernet link is created by connecting the RJ 45 interface of the media converter board to the network through a CAT5 patch cable. The duplex POF cable is connected between the AFBR-5972Z modules, as shown in Figure 4. The second RJ45 interface is connected to the Ethernet port of the computer through a CAT5 patch cable. Figure 4. Fast Ethernet measurement setup Media Converter Board Media Converter Board 2m POF Cable Network AFBR-5972Z RJ 45 IP113 ALF LED1 LED2 |
Similar Part No. - AFBR-0545Z |
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Similar Description - AFBR-0545Z |
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