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DP83220 Datasheet(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83220
Description  CDL Twisted Pair FDDI Transceiver Device
PDF  10 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83220 Datasheet(HTML) 7 Page - National Semiconductor (TI)

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40 Electrical Characteristics (Continued)
43 TRANSMIT DATA AND CURRENT DRIVER OUTPUT
TXDn
TXDnb1ITXOa
ITXOb
00
(I1)Imax
(I2)Imax
01
(I1 a I2)Imax
0
10
0
(I1 a I2)Imax
11
(I2)Imax
(I1)Imax
TLF11724 – 9
FIGURE 8 Typical Pre-Emphasized Current Waveform ITXOa
TABLE I Media Select
Mode
MSEL
STP
k
15V
DTP
l
37V
SDDI
Float
TABLE II Data Paths and Signal Detect
LBEN
CDET
Data
PMIDg
SDa
0
1
RXIg
0
0
0
RXIg
1
1
1
PMRDg
1
1
0
PMRDg
1
Note
This table assumes that minimum signal’s levels required by Signal
Detect have been met
7



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