ML6697CH View Datasheet(PDF) - Micro Linear Corporation

Part Name

Description

Manufacturer

ML6697CH

100BASE-TX Physical Layer with MII

Micro Linear Corporation 

ML6697

ML6697 SCHEMATIC

Figure 6 shows a general ML6697 design.

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 ML6697, and improves

the Bit Error Rate (BER) performance of the board. We

ML6697 PARTS LIST

COMPONENT

DESCRIPTION

U1

U2

U5

U6

FB1, FB2

L1, L2

R1

R2

R3, R24, R25

R8, R9

ML6697 52-Pin PLCC surface mount

Can Crystal Oscillator, 25MHz 4-pin

surface mount

Transformer Module

HEX Inverter 74HC04

Fair-Rite SM Bead P/N 2775019447

130nH inductors rated at 50MHz

2.49kW 1% 1/8W surface mount

9.53kW 1% 1/8W surface mount

750W 5% 1/8W surface mount

200W 1% 1/8W surface mount

recommend having a 0.1µF Cap on every VCC pin as

indicated by C3, 4, 9-12. Also, we recommend splitting

the VCC, AVCC, AGND and DGND. It is recommended

that 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.

COMPONENT

R10, R11

R13, R14

R15–R20

R21, R22

C1,C3,

C4, C8-12

C5, C6

C7

C2

C13, C14

D1-D3

D5-D6

DESCRIPTION

50W 1% 1/8W surface mount

100kW 10% 1/8W surface mount

49.9W 5% 1/8W surface mount

75W 5% 1/8W surface mount

0.1µF Ceramic Chip Cap

10mF Tantalum Cap.

10pF Cap

Board layer Cap (2V rated)

22nF Cap

LED Diodes

Diodes Phillips PMLL 4148

14

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