MX98715BEC Datasheet, PDF (8/16 Pages) Macronix International – APPLICATION NOTE

MX98715BEC
5.2 Board Layout / Trace Routing
¨ 90 degree corners should be avoided, smooth cornering is preferred.
¨ Keep the lengths of clock lines short and minimize the numbers of VIAs.
¨ All pair lines ( i.e. TX+/- , RX+/-) are of the equal length and run in parallel
then possible noise is common and can be ignored on different inputs.
Tx+
Tx+
Tx-
Tx-
¨ A good practice is that never run transmit and receive pair too close.
Crosstalk may become a problem.
Tx+
Tx+
Tx-
Tx-
Rx+
Rx+
Rx-
Rx-
¨ The ground shield of clock line may reduce extra noise.
Tx+
Tx-
Rx+
Rx-
Ground Shield
P/N:PM0706
Oscillator
8
REV. 0.2, NOV. 30, 2000