ml6692 Microsemi Corporation, ml6692 Datasheet - Page 19

• Manufacturer Part Number: ml6692
• Description: 100base-tx Physical Layer With
• Manufacturer: Microsemi Corporation

ML6692 SCHEMATIC
Figure 8 shows a general 10BASE-T and 100BASE-TX
design using the ML2653 (10BASE-T PHY) and ML6692
(100BASE-TX PHY).
The inductors L1 and L2 are for the purpose of improving
return loss. Capacitor C7 is recommended. It decouples
some noise at the inputs of the ML6692, and improves the
Bit Error Rate (BER) performance of the board. We
ML6692 PARTS LIST
Refer to ML2653 data sheet for CS2, CS1, and CS0 configuration
* These resistors need to be tuned to provide a 500mV
U1
U2
U3
U4
U5
U6
X1
FB1, FB2
L1, L2
R1
R2
R3, R12, R24, R25
R4, R5*
R6
R7
R8, R9, R26
R10, R11
R13, R14
R15–R20
R21, R22
R23
C1, C3, C4,
C8-12, C15
C5, C6
C7
C2
C13, C14
D1-D4
COMPONENT
ML6692 52-Pin PLCC surface mount
Can Crystal Oscillator, 25MHz 4-pin surface mount
ML2653 28-pin PLCC surface mount
93LC46 8-pin PLCC surface mount EEPROM
BEL Transformer Module 5558-1287-02, or XFMRS Inc.
XF6692TX, or Valor ST6129 (not pin compatible)
HEX Inverter 74HC04
20MHz XTAL surface mount
Fair-Rite SM Bead P/N 2775019447
130nH inductors rated at 50MHz
2.49k 1% 1/8W surface mount
9.53k 1% 1/8W surface mount
750 5% 1/8W surface mount
34.0 1% 1/8W surface mount
23.7 1% 1/4W surface mount
40.2k 1% 1/8W surface mount
200 1% 1/8W surface mount
100 1% 1/8W surface mount
100k 10% 1/8W surface mount
49.9 5% 1/8W surface mount
75 5% 1/8W surface mount
75 1% 1/4W surface mount
0.1µF Ceramic Chip Cap
10µF Tantalum Cap.
10pF Cap
Board layer Cap (2V rated)
22nF Cap
LED Diodes
0.01µF Ceramic Chip Cap
P-P
amplitude single ended signal to the ML6692 inputs.
DESCRIPTION
recommend having a 0.1µF Cap on every V
indicated by C3, 4, 9-12. Also, we recommend splitting
the AV
AGND and DGND planes are large enough for low
inductance. If splitting the two grounds and keeping the
ground planes large enough is not possible due to board
space, you could join them into one larger ground plane.
CC
, AGND and DGND. It is recommended that
CC
ML6692
pin as
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