QT2022/32 - Data Sheet: DS3051
18 Application Notes
18.1 External Components
Figure 57 illustrates external components required to bias or terminate signal pins for proper operation of the
QT2022/32.
Figure 57: External Component Values and Connections
* Note: if 5.6nF capacitors are not available,
substitute with 6.8nF±10%. This is acceptable
in LAN applications only.
TXFP
TXFN TV1P2A TXIPUMP
10nF
2x4
TXLEVEL
TXOUTP
RxXAUI
4.53kΩ
4.53kΩ
RxXLEVEL QT2032 /
TXOUTN
ITH_LOS
XBIAS
100nF+-10%
6.49kΩ ± 2%
QT2022
Refer to “Implementing LOS
for the QT2022/QT2032”
Application Note for details
Leave unconnected when
not used.
RXIP
RXIN
100nF+-10%
RXIPUMP RXFP RXFN RV1P2A
6.49kΩ ± 2%
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