SY89540UMY Micrel Inc, SY89540UMY Datasheet

SY89540UMY

Manufacturer Part Number

SY89540UMY

Description

IC XPOINT SW 4X4 PREC 44-MLF

Manufacturer

Micrel Inc

Series

SY89r

Datasheet

1.SY89540UMY.pdf (14 pages)

Specifications of SY89540UMY

Function

Crosspoint Switch

Circuit

1 x 4:4

Voltage Supply Source

Single Supply

Voltage - Supply, Single/dual (±)

2.375 V ~ 2.625 V

Current - Supply

200mA

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

44-MLF®, QFN

Number Of Arrays

Differential Data Transmission

Yes

Power Supply Requirement

Single

Mounting

Surface Mount

Operating Temperature (max)

85C

Operating Temperature (min)

-40C

Operating Temperature Classification

Industrial

Cascading Capability

Line Code

NRZ

On-chip Buffers

On-chip Decoder

On-chip Latch Circuit

On-chip Mux/demux

Programmable

Dual Supply Voltage (typ)

Not RequiredV

Dual Supply Voltage (max)

Not RequiredV

Dual Supply Voltage (min)

Not RequiredV

Input Level

CML/LVDS/LVPECL

Output Level

LVDS

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

576-3241

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

SY89540UMY

Manufacturer:

VISHAY

Quantity:

2 568

Company:

H&T Electronics

Part Number:

SY89540UMY

Quantity:

494

Company:

Meier Automation Equipment Co., Limited

Part Number:

SY89540UMY-TR

Manufacturer:

MICROCHIP/微芯

Quantity:

20 000

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General Description

The SY89540U is a low-jitter, low skew, high-speed

4x4 crosspoint switch optimized for precision telecom

and enterprise server/storage distribution applications.

The SY89540U guarantees data-rates up to 3.2Gbps

over temperature and voltage.

The SY89540U differential input includes Micrel’s

unique, 3-pin input termination architecture that

directly interfaces to any differential signal (AC or DC-

coupled) as small as 100mV (200mV

level shifting or termination resistor networks in the

signal path. The LVDS compatible outputs maintain

extremely fast rise/fall times guaranteed to be less

than 120ps.

The SY89540U features a patent-pending isolation

design that significantly improves on channel-to-

channel crosstalk performance.

The SY89540U operates from a 2.5V ±5% supply and

is guaranteed over the full industrial temperature range

(–40°C to +85°C). The SY89540U is part of Micrel’s

high-speed, Precision Edge

All support documentation can be found on Micrel’s

web site at www.micrel.com.

Typical Performance

December 2007

Precision Edge is a registered trademark of Micrel, Inc.

product line.

) without any

Precision Low Jitter 4x4 LVDS Crosspoint

Features

• Provides crosspoint switching between any input

• Patent pending, channel-to-channel isolation design

• Guaranteed AC performance over temperature and

• DC-to-3.2Gbps throughput

• Ultra-low jitter design:

• Patent pending 50Ω input termination, extended

• 350mV LVDS output swing

• Power supply 2.5V ±5%

• –40°C to +85°C temperature range

• Available in 44-pin (7mm x 7mm) QFN package

• Pb-Free Green package

Applications

• All SONET/SDH channel select applications

• All Fibre Channel multi-channel select applications

• All Gigabit Ethernet multi-channel select

pairs to any output pair

provides superior crosstalk performance

– <480ps propagation delay

– <120ps rise/fall time

– <30ps output-to-output skew

– <1ps

– <10ps

– <0.7ps

CMVR, and VT pin accepts DC- and AC-coupled

differential inputs

applications

voltage:

Switch with Internal Termination

RMS

total jitter (clock)

random jitter

deterministic jitter

crosstalk induced jitter

SY89540U

hbwhelp@micrel.com

M9999-120607-C

or (408) 955-1690

Precision Edge

Related parts for SY89540UMY

SY89540UMY Summary of contents

Page 1

General Description The SY89540U is a low-jitter, low skew, high-speed 4x4 crosspoint switch optimized for precision telecom and enterprise server/storage distribution applications. The SY89540U guarantees data-rates up to 3.2Gbps over temperature and voltage. The SY89540U differential input includes Micrel’s unique, ...

Page 2

Functional Block Diagram December 2007 2 hbwhelp@micrel.com M9999-120607-C or (408) 955-1690 ...

Page 3

... Ordering Information Part Number SY89540UMI (2) SY89540UMITR SY89540UMY (2) SY89540UMYTR Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel ordering option. Pin Configuration December 2007 Package Temperature Type Range QFN-44 Industrial QFN-44 Industrial QFN-44 Industrial QFN-44 Industrial = 25°C, DC electrical only. ...

Page 4

Pin Description Pin Number Pin Name 17, 15, IN0, /IN0, 10, 8 IN1, /IN1 IN2, /IN2, 41, 39 IN3, /IN3 16, 9, VT0, VT1 VT2, VT3 14, VREF_AC0, 11, VREF_AC1, 1, VREF_AC2, 42 VREF_AC3 18, 19 ...

Page 5

Functional Description Buffer Mode SY89540 can be used as a 1:4 fanout buffer. This is the default mode with LOAD and CONFIG being HIGH when the device is first powered up. The SIN0 and SIN1 inputs select the input signal ...

Page 6

Absolute Maximum Ratings Supply Voltage (V ) ..........................–0.5V to +4.0V CC Input Voltage (V ) ..................................–0. CML Output Voltage (V ) .... V OUT (3) Termination Current Source or sink current Input Current Source ...

Page 7

LVDS Outputs DC Electrical Characteristics V = 2.5V ±5 –40°C to +85° Symbol Parameter V Output HIGH Voltage OH (Q, /Q) V Output LOW Voltage OL (Q, /Q) V Output Voltage Swing OUT (Q, /Q) ...

Page 8

AC Electrical Characteristics V = 2.5V ±5 –40°C to +85° Symbol Parameter f Maximum Operating Frequency MAX t Propagation Delay Tempco Set-up Time t S SIN-to-LOAD SOUT-to-LOAD LOAD-to-CONFIG CONFIG-to-LOAD t Hold Time ...

Page 9

Single-Ended and Differential Swing Figure 1a. Single-Ended Voltage Swing Timing Diagram Truth Tables Input Select Address Table SIN1 SIN0 December 2007 Figure 1b. Differential Voltage Swing Figure 2. Timing Diagram Input SOUT1 ...

Page 10

Typical Operating Characteristics 100mV, at 25° Amplitude vs. Frequency 350 300 250 200 150 100 50 FREQUENCY (MHz) Channel-to-Channel Skew, Relative to Ch0 ...

Page 11

Functional Characteristics 100mV, at 25° Clock Pattern Data Pattern December 2007 11 hbwhelp@micrel.com M9999-120607-C or (408) 955-1690 ...

Page 12

Input and Output Stage Internal Termination Figure 3. Simplified Differential Input Stage December 2007 Output Stage Internal Termination On a nominal 1.25V common mode above ground, LVDS specifies a small swing of 350mV, typical. The common mode voltage has tight ...

Page 13

Input Interface Applications Figure 5a. LVPECL Interface (DC-Coupled) Figure 5d. CML Interface (AC-Coupled) Related Product and Support Documentation Part Number Function SY58540U Ultra Precision 4x4 CML Crosspoint Switch w/Internal I/O Termination HBW Solutions New Products and Applications December 2007 Figure ...

Page 14

Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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