E2009QNLT Datasheet, PDF (2/4 Pages) Pulse A Technitrol Company – SURFACE MOUNT 10BASE-T INTERFACE MODULES

SURFACE MOUNT 10BASE-T
INTERFACE MODULES
Fully Integrated for Adapter, Hub, and
Motherboard Applications
Part
Number
PE-68025QNL
PE-68026NL
PE-68027QNL
IC
Manufacturer
AMD
Various
National
R1
TXD (+) = 61.9
—
TXOD (-) = 274
Resistor Values ()
R2
TXP (+) = 422
—
TXO (+) = 66.5
R3
R4
R5
TXD (-) = 61.9 TXP (-) = 422 1.2k
—
—
—
TXO (-) = 66.5 TXOD (+) = 274 806
R6
RX (+) = 49.9
—
RX (+) = 49.9
R7
RX (-) = 49.9
—
RX (-) = 49.9
PE-68025QNL, PE-68026NL, PE-68027QNL
Schematic
CHIP SIDE
R1
1
R2
2
R3
3
R4
4
TRANSMIT CHANNEL
LOW PASS ^1:1
FILTER
5
7
LOW PASS
FILTER
UTP SIDE
8
100 W
6
CHIP SIDE
16
14
NOTE: PE-68026NL does not contain resistors. They are an external configuration.
RECEIVE CHANNEL
LOW PASS ^1:1
FILTER
12
10
LOW PASS
FILTER
Typical Application Circuit
PE-68025QNL, PE-68026NL, PE-68027QNL
UTP SIDE
9
100 W
11
TWISTED
PAIR
TRANSMIT
OUTPUTS
RXI+
RXI-
ANALOG INTERFACE MODULE
1 234
R1 R2 R3 R4
R5
5678
LPF
LPF
LPF
LPF
R6 R7
16 15 14 13 12 11 10 9
.01µF
2 _TD-
1 _TD+
3 _RD+
6 _RD-
RJ-45
CONNECTOR
UTP
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2
E115.E (5/09)