Part Number: DP83848C I have a conflict it seems with regard to DP83848C RMII bus impedance. The datasheet references the IEEE spec of 68 ohms for the bus impedance, but the TI design review package I received states 50 ohms for RMII interface. Can I…
Part Number: DP83848C Other Parts Discussed in Thread: DP83848J , Are TI engineers available to review a schematic design? I am working with DP83848C (RMII mode) interfacing to a PIC32MX795F512L device. What lines should be impedance controlled, just the…
Part Number: DP83848C
1. In RMII mode, MCU connects to RX-DV, but not CRS-DV.
2, RBIAS install 4.7KΩ 1% resistance.
3. PFBOUT, PFBIN1, PFBIN2 Connect to DC3.3V power supply.
The above connection. The network can be connected in actual use. Long…
Part Number: DP83848C I'm using DP83848 with 10BASE.
I believe the length of preamble is defined 7 octets in IEEE standards. However, the DP83848 sometimes outputs preamble 6.5 octets + SFD (1octet).
Is this preamble shortage common on the ethernet…
Part Number: DP83848C I am using this Ethernet chip in my design. Are the 51 ohm series terminations required when I am using impedance controlled traces in my design? The datasheet calls for the series terminations of 51 ohms, but I have very short traces…
Part Number: DP83848C Other Parts Discussed in Thread: DP83822I Hi Team,
The customer used our DP83848 chip, but had some problems with the FLP waveform test.
The FLP waveform of DP83848 did not see any undershoot, and the customer wanted to know if such…
Part Number: DP83848C The data sheet for the DP83848VV in the 48-LQFPpackage TI refers to as its "PT package" apparently has a 49th pin in the form of an underside Power Pad. Is this true? There's ambiguity about this because the package drawing…