Microchip SY89833AL Bruksanvisning

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SY89833AL

Evaluation Board

3.3V Low Noise Ultra-Precision 1:4 LVDS

Fanout Buer/Translator with Internal

Termination

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

April 2009 M9999-043009-A

hbwhelp@micrel.com or (408) 955-1690

General Description

The SY89833AL evaluation board is designed for

convenient set-up and quick evaluation. It allows the user

to evaluate the part over the full voltage-range without

requiring any modification to the board.

The evaluation board standard configuration is AC-coupled

input with AC-coupled outputs for direct interface to a 50Ω-

compatible oscilloscope.

All datasheets and support documentation can be found at

Micrel’s web site at: www.micrel.com.

Features

• SY89833AL LVDS outputs

• Single 3.3V power supply

• AC-coupled configuration for ease-of-use

• I/O interface includes on-board termination

• Fully assembled and tested

• Reconfigurable for DC-coupled operation

Applications

• SY89833AL 3.3V Low Noise Ultra-Precision 1:4 LVDS

Fanout Buffer/Translator with Internal Termination

___________________________________________________________________________________________________________

Evaluation Board

Micrel, Inc. SY89833AL Evaluation Board

April 2009 2 M9999-043009-A

hbwhelp@micrel.com or (408) 955-1690

Evaluation Board Description

AC-Coupled Evaluation Board

(AC-Coupled Input, AC-Coupled Output)

The SY89833AL evaluation board is designed to accept

an AC-coupled input with AC-coupled outputs.

The AC-coupled conguration is suited for most

customer applications and is preferred by the majority of

users because of its ease-of-use. It requires only a

single power supply and offers the most flexibility when

interfacing to a variety of signal sources.

The DC-bias levels and AC-coupling capacitors are

supplied on-board for the input. The user only needs to

supply a minimum input voltage swing and the bias

voltage will automatically adjust the input to the correct

level as the power supply voltage varies.

AC-Coupled Evaluation Board Setup

(AC-Coupled Input, AC-Coupled Output)

Setting up the SY89833AL AC-Coupled Evaluation

Board

The following steps describe the procedure for setting up

the evaluation board:

1. Set the voltage setting for a DC supply to be

3.3V.

2. On the evaluation board, short the GND terminal

to the VEE terminal and connect them to the

negative side of the DC power supply.

3. Connect the VCC terminal to the positive side of

the DC power supply.

4. Turn on the power supply and verify that the

power supply current is <140mA.

5. Turn off the power supply.

6. Using a differential signal source, set the

amplitude of each side of the differential pair to

be 800mV (1600mV measured differentially).

The offset is not critical, as the AC-coupled

inputs will be automatically biased to the correct

offset. Turn off or disable the outputs of the

signal source.

7. To enable the Q0-Q3 outputs, use the SW2

switch. To enable the outputs, set SW2 to HIGH

and to disable to a LOW. See Table 1 below.

EN Q Output

0 Logic Low

1 Data

Table 1. Output Enable/Disable

8. Using equal length 50Ω impedance coaxial

cables connect the signal source to the SMA

inputs on the evaluation board.

9. Using equal length 50Ω impedance coaxial

cables connect the desired output/outputs of the

evaluation board to the oscilloscope or other

measurement device that has an internal 50Ω

termination. Terminate all unused outputs into

50Ω.

10. Turn on the power and verify the current is

<140mA.

11. Enable the signal source and monitor the

output/outputs.

Micrel, Inc. SY89833AL Evaluation Board

April 2009 3 M9999-043009-A

hbwhelp@micrel.com or (408) 955-1690

Evaluation Board

SY89833AL AC-Coupled Evaluation Board

Power Supply VCC GND VEE I/O

3.3V 3.3V 0V 0V AC-Coupled Input/AC-Coupled Output

Table 2. SY89833AL AC-Coupled Evaluation Board Power Supply Connections

Produktspecifikationer

Varumärke:	Microchip
Kategori:	Inte kategoriserad
Modell:	SY89833AL
Enhetsplacering:	Ingebouwd
Typ av operation:	Draaiknop
Färg på produkten:	Roestvrijstaal
Inbyggd display:	Nee
Bredd:	920 mm
Djup:	520 mm
Höjd:	61 mm
Förpackningens vikt:	23000 g
Förpackningens bredd:	1020 mm
Djuppackning:	600 mm
Förpackningshöjd:	200 mm
Typ av material (överst):	Roestvrijstaal
Brännare/kokzonseffekt 2:	3000 W
Brännare/kokzonseffekt 3:	1000 W
Brännare/kokzonseffekt 1:	3800 W
Antal brännare/kokzoner:	5 zone(s)
Typ av häll:	Gaskookplaat
Elektronisk tändning:	Ja
Brännare/kokzon typ 1:	Extra groot
Brännare/kokzon typ 2:	Groot
Typ av brännare/kokzon 3:	Sudderen
Antal gasbrännare:	5 zone(s)
Antal elektroniska kokzoner:	0 zone(s)
Sjud brännare/kokzon:	1100 W
Normal brännare/kokzon:	1750 W
Kontrollposition:	Rechtsboven
Installationsfackets bredd:	860 mm
Installationsfack djup:	480 mm
Stor brännare/kokzon:	3000 W
Ansluten last (gas):	11400 W
Pannstödsmaterial:	Gietijzer
Säkerhetsventil:	Ja
Extra stor höghastighetskokzon:	3800 W
Typ av brännare/kokzon 4:	Regulier
Brännare/kokzonseffekt 4:	1750 W
Strömkälla brännare/kokzon 1:	Gas
Strömkälla brännare/kokzon 2:	Gas
Strömkälla brännare/kokzon 3:	Gas
Strömkälla för brännare/kokzon 4:	Gas
Wokbrännare:	Ja
Wokbrännares läge:	Links
Placera brännare/kokzon 1:	Links
Placera brännare/kokzon 2:	Midden achter
Placera brännare/kokzon 3:	Midden voor
Placera brännare/kokzon 4:	Rechts achter
Kokzon 1 form:	Rond
Kokzon 2 form:	Rond
Kokzon 3 form:	Rond
Kokzon 4 form:	Rond
Strömkälla för brännare/kokzon 5:	Gas
Typ av brännare/kokzon 5:	Regulier
Placera brännare/kokzon 5:	Rechts voor
Brännare/kokzonseffekt 5:	1750 W
Kokzon 5 form:	Rond