AD9551/PCBZ屬于開發(fā)板套件編程器的評估演示板及套件。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD9551/PCBZ評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗證的實施環(huán)境中評估某些重點器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺可組合為一個單獨的產(chǎn)品系列。

GENERAL DESCRIPTION

The AD9551 accepts one or two reference input signals to synthesize one or two output signals. The AD9551 uses a fractional-N PLL that precisely translates the reference frequency to the desired output frequency. The input receivers and output drivers provide both single-ended and differential operation.

FEATURES

Translation between any two standard network rates

Dual reference inputs and dual clock outputs

Pin programmable for standard network rate translation

SPI programmable for arbitrary rational rate translation

Output frequencies from 10 MHz to 900 MHz

Input frequencies from 19.44 MHz to 806 MHz

On-chip VCO

Meets OC-192 high band jitter generation requirement

Supports standard forward error correction (FEC) rates

Supports holdover operation

Supports hitless switchover and phase build-out (even with

unequal reference frequencies)

SPI-compatible 3-wire programming interface

Single supply (3.3 V)

APPLICATIONS

Multiservice switches

Multiservice routers

Exact network clock frequency translation

General-purpose frequency translation