PM5357 datasheet(61/432 Pages) PMC

61 / 432 page

PRODUCTION

S/UNI-622-POS

PMC-Sierra, Inc.

PM5357

S/UNI-622-POS

DATASHEET

PMC-1980911

ISSUE 5

SATURN USER NETWORK INTERFACE (622-POS)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE

9.8

Analog Signals

Pin Name

Type

No.

Function

TDREF0

TDREF1

Analog

The transmit data reference (TDREF0 and TDREF1)

analog pins are provided to create calibrated currents

for the PECL output transceivers TXD+/-. A 2.00K

ohm resistor is connected across the TDREF0 and

TDREF1 pins.

Analog

The analog C1 and C0 pins are provided for

applications that must meet SONET/SDH jitter

transfer specifications. A 47nF non-polarized

capacitor (ceramic ± 5% X7R or equivalent) is

attached across C1 and C0 for these applications.

When the capacitor is used, the RTYPE bit in the

CRSI must be set to logic one for proper operation.

When the capacitor is not used, these pins are left

floating and the RTYPE register bit in the CRSI must

be set to logic zero for proper operation.

ATP[0]

ATP[1]

Analog

The receive and transmit analog test ports (ATP[1:0]).

These pins are used for manufacturing testing only

and should be tied to analog ground (AVS).

PM5357 Datasheet(PDF) 61 Page - PMC-Sierra, Inc