PM4541 データシートの表示（PDF） - PMC-Sierra

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PM4541

T1XC EVALUATION DAUGHTER BOARD

PMC-Sierra 

TELECOM STANDARD PRODUCT

PMC-920314

ISSUE 2

PMC-Sierra, Inc.

PM4541 T1XC-EVBD

T1XC EVALUATION DAUGHTERBOARD

4 PHYSICAL DESCRIPTION

4.1 Characteristics

The T1XC EVBD is an evaluation board that allows the T1XC device to be feature

tested and evaluated for various applications. Special consideration has been made

in its design to allow testing of the E1XC when it is available. While the daughter-

board can be used standalone with a limited feature set, it has been especially

designed to link with PMC's EVMB (Evaluation Motherboard). The EVMB controller

board provides a microprocessor to read and write to all of the T1XC's internal

registers allowing configuration, control and set-up of the various modes of T1XC

operation.

The T1XC EVBD is laid out for convenient bench top use for test or demonstration

purposes. It is provided with rubber feet that are placed to avoid PCB flexing. Pin

headers provide easy access to all signals necessary during device testing. A

T1/CEPT Digital PLL is installed to provide the necessary 1.544 MHz or 2.048 MHz

backplane rates. External pins allow access when using an externally generated

backplane clock. Ground pins for scope probes are conveniently provided and

distributed. Simple configuration into the example CSU application is provided. The

DIP switches, pin headers, and interface connections are labeled on the silkscreen

for easy identification and ample prototype area is provided. The size of the T1XC

EVBD is constrained to 8.5 x 6.5 inches and, when mated with the EVMB card, will

fit in a standard three ring binder.

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