ML6652 datasheet(4/28 Pages) MICRO-LINEAR

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ML6652

January 2002

Preliminary Datasheet

PIN CONFIGURATION

Signal names followed by "#" indicate active low input.

Pin No. Signal Name

I/O

Description

CONFIGURATION

AD4LIW

Sets the value of the Physical Layer (PHY) address bit 4 for accessing the Serial

Management Interface, and determines if the Link Integrity Warning (LIW)

function is enabled or disabled.

The Link Integrity Warning (LIW) function can only be enabled when only one

SPEED is available through setting of SPEED ( pin 27) and/or management

registers. When LIW is enabled and the input link is down at one interface to

the Media Converter, the transmitter output on that interface is turned off for

about 425ms every 3.8 seconds. It applies to both network interfaces and both

data rates. If the link at the other interface to the Media Converter is also

down, there is no output. The LIW function causes the Link Up indicator of the

link partner to blink.

Note: this pin is typically read a few microseconds after power-up, if it is tied

to supplies that do not track the ML6652 power improper results will occur.

Use VCCD (pin 19) as the pull up point, do not add decoupling capacitors to

this input pin (without thoroughly understanding your PCB layout dynamics the

safest course is to make short connections and do not add decoupling

capacitors to this input pin).

AD32

Sets the value of the PHY address bits 3 and 2 for accessing the Serial

Management Interface.

Note: this pin is typically read a few microseconds after power-up, if it is tied

to supplies that do not track the ML6652 power improper results will occur.

Use VCCD (pin 19) as the pull up point, do not add decoupling capacitors to

this input pin (without thoroughly understanding your PCB layout dynamics the

safest course is to make short connections and do not add decoupling

capacitors to this input pin).

TOP VIEW

ML6652

44-Pin TQFP (H44-10)

FOINP

FOINN

VCCQ

CQOS

SDFO

GNDFC

SPEED

VCCFC

DUPLEX

PWRDWN#

VCCL

TPOUTP

GNDT

TPOUTN

AD4LIW

AD32

AD10

PECLTP

PECLQU

VCCE

TPINP

TPINN

12 13 14 15 16 17 18

44 43 42 41 40

39 38

PIN DESCRIPTIONS

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