PMC-Sierra PM5349 Analog Signals Pin Name Type Function, Power and Ground Pin Name Type Function

Models: PM5349

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PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

PMC-971239

ISSUE 6

SATURN USER NETWORK INTERFACE (155-QUAD)

 

 

 

9.5Analog Signals

Pin Name

Type

Pin

Function

 

 

No.

 

 

 

 

 

ATB0

Analog I/O

P2

The Analog Test Bus (ATB). These pins are used for

ATB1

 

P3

manufacturing testing only and should be connected

ATB2

 

P4

ground.

ATB3

 

R1

 

 

 

 

 

9.6Power and Ground

Pin Name

Type

Pin

Function

 

 

No.

 

 

 

 

 

BIAS

Bias

K21

I/O Bias (BIAS). When tied to +5V via a 1 KΩ

 

Voltage

C17

resistor, the BIAS input is used to bias the wells in

 

 

 

the input and I/O pads so that the pads can tolerate

 

 

 

5V on their inputs without forward biasing internal

 

 

 

ESD protection devices. When BIAS is tied to

 

 

 

+3.3V, the inputs and bi-directional inputs will only

 

 

 

tolerate 3.3V level inputs.

 

 

 

 

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

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PMC-Sierra PM5349 manual Analog Signals Pin Name Type Function, Power and Ground Pin Name Type Function