A Product Line of

Diodes Incorporated

PI2DPX2063

15

July 2022

© 2022 Copyright Diodes Incorporated. All Rights Reserved.

PI2DPX2063

Document Number DS43839 Rev 2-2

www.diodes.com

RX2-

RX2+

RX1-

RX1+

TX2-

TX2+

TX1-

TX1+

4-PORT VECTOR

NETWORK ANALYZER

N52454

VICTIM INPUT

50Ω

50Ω

50Ω

50Ω

AGGRESSOR

SIGNAL

(0dBm)

VICTIM OUTPUT

Figure 7. NEXT Channel-isolation Test Configuration

RX_+

RX_-

50Ω

50Ω

TX_+

TX_-

BALUN

(200kHz TO 17GHz)

POWER METER

GIGATRONICS 8652A

WITH 80301A HEAD (10MHz

to 18GHz)

Figure 8. Noise Test Configuration

JBERT (No Pre-emphasis)

Oscilloscope

Trace Card

Trace Card

Char Board(DUT)

Ch1

Ch2

Ch1

Ch2

SMA

cable

SMA

cable

SMA

cable

DUT

1) Trace card between TP1 and TP2 is designed to emulate 6-48” of FR4. Trace width -4 mils,100 differnetial impedance

2) All jitter is measured at a BER of 10-9

3) Residual jitter reects the total jitter measured at TP4 jitter minus TP1 jitter

4) VDD = 1.8V, RT = 50

5) The input signal from JBERT does not have any pre-emphasis.

TP1

TP2

TP3

TP4

Figure 9. Channel Measurement Setup