SI5040-EVB datasheet(1/24 Pages) SILABS

номер детали	SI5040-EVB

подробное описание детали	Four selectable on-chip reference frequencies

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производитель	SILABS [Silicon Laboratories]

домашняя страница	http://www.silabs.com

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Rev. 0.4 4/08

Si5040-EVB

Si5040 E VALUATION B OARD

Description

The Si5040-EVB provides a platform for evaluating

Silicon Laboratories' Si5040 XFP Signal Conditioning

Transceiver. The Si5040 is a complete, low-power, high-

performance XFP transceiver suitable for use in all XFP

module types, from short-reach datacom to long-reach

telecom applications. The Si5040 is unique in that it

integrates a rate-agile, programmable-bandwidth, jitter-

attenuating

transmit

CMU

and

a

fixed-bandwidth

receive CMU. The device supports referenceless

operation

or

operation

with

a

synchronous

or

asynchronous reference clock. The device can be

completely configured through a serial microcontroller

interface. The Si5040 Transceiver provides full-duplex

operation at serial data rates from 9.95 to 11.4 Gbps

(continuous).

The Si5040-EVB also contains an MCU (C8051F320)

and a crystal oscillator (Si534), both from Silicon Labs.

The

8051F320

provides

status

and

control

communication between the Si5040 and the Si5040-

EVB Software. The Si534 is a multi-rate crystal

oscillator that, when enabled, supplies one of four

selectable

reference

clocks

to

the

Si5040

while

providing that clock at SMA connectors for external

monitoring/use.

The Silicon Laboratories MCU (C8051F320) has a USB

port that is used to communicate to a PC that is running

the Si5040 EVB software. The MCU also has a serial

port that connects to the serial control port of the Si5040

to read and write to its registers. In addition, the MCU

drives all but one of the LEDs on the EVB and can make

a very accurate reading of the three voltages that power

the EVB.

Note that starting in October of 2006, all Si5040-EVBs

will be assembled with Si5040 Rev B device on the

Si5040 Rev A Printed Circuit Board (PCB). Prior to

October of 2006, all Si5040-EVBs were assembled with

the Si5040 Rev A device on the Si5040 Rev B Printed

Circuit Board (PCB).

Features

The Si5040-EVB includes the following:

 Evaluation of Silicon Laboratories' Si5040 XFP

Signal Conditioning Transceiver

 Separate supply connections for the following:



VDD (1.8 V) powers the internal circuitry of the Si5040.



VDD_3p3 (3.3 V) powers the MCU and XTAL oscillator.



VDDIO (1.8 or 3.3 V) powers the LVTTL IOs of the

Si5040.

 Four selectable on-chip reference frequencies.

 LEDs for visual monitoring of key chip and board

parameters.

 Si5040 EVB software allows for quick and easy

access to all registers in the Si5040.

 A dual-row header allows the Si5040 to be easily

connected to another MCU for serial control and

status communications.

 Synchronous output clock at 1/16 the recovered

clock rate.

Si5040-EVB Quick Start

Starting in October of 2006, all Si5040-EVBs will be

assembled with the Rev B device. Perform the following

steps to set up the Si5040-EVB.

1. Install the Si5040 EVB Driver. (This must be installed

before the EVB is connected to the PC via the USB

cable.)

2. Install the Si5040 EVB Software. (Assumes that

Microsoft .NET Framework 1.1 is already installed.)

3. Connect the power supplies to the EVB.

4. Turn on the power supplies.

5. Connect a USB cable from the EVB to the PC where

the software was installed.

6. Launch the Si5040 EVB Software by clicking on

Start

ProgramsSilicon LaboratoriesSi5040

Software

Si5040 Register Programmer. The

“Select the EVB” window will appear. Simply click

OK (for connection with single EVB).

Аналогичный номер детали - SI5040-EVB

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