78q8430-100igt Maxim Integrated Products, Inc., 78q8430-100igt Datasheet - Page 85
78q8430-100igt
Manufacturer Part Number
78q8430-100igt
Description
10/100 Ethernet Mac And Phy
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.78Q8430-100IGT.pdf
(88 pages)
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DS_8430_001
11 Line Interface Schematic
Figure 16 shows a typical analog line interface schematic (not all components are shown).
Rev. 1.2
*
Shunt capacitor value will vary depending on crystal capacitance.
10/100 Ethernet
MAC and PHY
Single Chip
78Q8430
GND
+3.3V
VCC
Ferrite
VCCA
VCCA
VCCA
LED 0
XTLP
XTLN
LED 1
RXN
RXP
TXP
TXN
10µF
Figure 16: Line Interface Schematic
27pF
0.1µF
Parallel Resonant
*
25. 000 MHz
+3.3VA
50Ω
0.1µF
0.1µF
0.1µF
+3.3VA
27pF
50Ω
0.1µF
*
680Ω
+3.3VA
50Ω
+3.3V
680Ω
50Ω
+3.3VA
+3.3VA
A
C
A
C
LED
LED
0.1µ
F
Link
Activity
78Q8430 Data Sheet
Transformer
0.1µ
F
1:1
1
2
3
6
RJ45
85
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