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IP113A LF
Preliminary Data Sheet
5/22
April 9, 2007
Copyright © 2004, IC Plus Corp.
IP113A LF-DS-R08
1.
PIN Description
Type
Description
I
Input pin
O
Output pin
IPL
Input pin with internal pull-low resistor.
IPH
Input pin with internal pull-high resistor.
Pin no.
Label
Type
Description
Transceiver
5, 6
RXIP, RXIM
I
TP receive
8, 9
TXOP, TXOM
O
TP transmit
2
BGRES
O
Band gap resistor
It is connected to GND through a 6.19k (1%) resistor in
application circuit.
18
FXSD
I
100Base-FX signal detect
Fiber signal detect. It is an input signal from fiber MAU.
Fiber signal detect is active if the voltage on FXSD is higher
than the threshold voltage, which is 1.35v
±5% when VCC
is equal to 2.5v.
13, 14
FXRDP, FXRDM
I
Fiber receiver data pair
Common-mode voltage of FXRDP and FXRDM are
suggested to near 0.5x AVCC.
When voltage peak-to-peak>0.1V,FXRX could be
workable.
16, 17
FXTDP, FXTDM
O
Fiber transmitter data pair
FXTX with the external 100Ω resistor.
Common-mode voltage of FXTDP and FXTDM are
suggested to near 0.5x AVCC.
Swing of Voltage ≧ 0.8V.
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