sy58038u Micrel Semiconductor, sy58038u Datasheet

sy58038u

Manufacturer Part Number

sy58038u

Description

Sy58038u Ultra Precision 8 1 Mux With Internal Termination And 1 2 Lvpecl Fanout Buffer

Manufacturer

Micrel Semiconductor

Datasheet

1.SY58038U.pdf (12 pages)

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M9999-121207

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

Micrel, Inc.

Precision Edge is a registered trademark of Micrel, Inc.

MLF and Micro LeadFrame are registered trademarks of Amkor Technology, Inc.

FEATURES

APPLICATIONS

Selects between 1 of 8 inputs, and provides 2

precision, low skew LVPECL output copies

Guaranteed AC performance over temperature and

voltage:

• DC to 4.5Gbps throughput

• <500ps propagation delay IN-to-Q (V

• <100ps t

• <15ps skew (output-to-output)

Unique, patent-pending, channel-to-channel

isolation design provides superior crosstalk

performance

Ultra-low jitter design:

• <1ps

• <10ps

• <1ps

• <0.7ps

Unique, patent-pending, input termination and VT

pin accepts DC- and AC-coupled inputs (CML, PECL,

LVDS)

800mV LVPECL output swing

Power supply 2.5V

–40

Available in 44-pin (7mm × × × × × 7mm) MLF

Data communication systems

All SONET/SDH data/clock applications

All Fibre Channel applications

All Gigabit Ethernet applications

C to +85

RMS

deterministic jitter

total jitter (clock)

random jitter

cycle-to-cycle jitter

/ t

crosstalk-induced jitter

C temperature range

time

5% or 3.3V

10%

ULTRA PRECISION 8:1 MUX

WITH INTERNAL TERMINATION AND

1:2 LVPECL FANOUT BUFFER

package

≥

100mV)

multiplexer with a 1:2 differential fanout buffer optimized for

precision telecom and enterprise server distribution

applications. The SY58038U distributes clock frequencies

from DC to 3.5GHz, and data rates to 4.5Gpbs guaranteed

over temperature and voltage.

3-pin input termination architecture that directly interfaces

to any differential signal (AC- or DC-coupled) as small as

100mV without any level shifting or termination resistor

networks in the signal path. The outputs are 800mV, 100K

compatible LVPECL with extremely fast rise/fall times

guaranteed to be less than 100ps.

that significantly improves channel-to-channel crosstalk

performance.

supply and is guaranteed over the full industrial temperature

range of –40°C to +85°C. The SY58038U is part of Micrel’s

high-speed, Precision Edge

Micrel’s web site at www.micrel.com.

DESCRIPTION

The SY58038U is a low jitter, low skew, high-speed 8:1

The SY58038U differential input includes Micrel’s unique,

The SY58038U features a patent-pending isolation design

The SY58038U operates from a 2.5V ±5% or 3.3V ±10%

Datasheets and support documentation can be found on

product line.

Precision Edge

Rev.: E

Issue Date: December 2007

Precision Edge

SY58038U

Amendment: /0

SY58038U

Related parts for sy58038u

sy58038u Summary of contents

Page 1

... The SY58038U operates from a 2.5V ±5% or 3.3V ±10% ± 10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. The SY58038U is part of Micrel’s high-speed, Precision Edge ® package Datasheets and support documentation can be found on Micrel’s web site at www.micrel.com. ...

Page 2

... S0 50Ω 50Ω /IN5 IN6 50Ω 50Ω /IN6 IN7 50Ω 50Ω /IN7 Q /Q IN0 /IN0 IN1 /IN1 IN2 /IN2 IN3 /IN3 IN4 /IN4 IN5 /IN5 IN6 /IN6 IN7 /IN7 2 Precision Edge 1:2 Fanout Q0 /Q0 MUX Q1 / ® SY58038U ...

Page 3

... CC –1.2V if AC-coupled Precision Edge (1) Package Range Marking Industrial SY58038U Industrial SY58038U Industrial SY58038U with Pb-Free bar-line indicator Matte-Sn Industrial SY58038U with Pb-Free bar-line indicator Matte-Sn = 25°C, DC electricals only. A –1.2V used when AC coupling the inputs ® SY58038U Lead Finish Sn-Pb Sn-Pb Pb-Free Pb-Free – ...

Page 4

... A (4) (θ (ψ Min Typ 2.375 2.5 3.0 3.3 120 100 V –1 0.1 0.2 V –1.3 V –1 ® Precision Edge SY58038U Max Units 2.625 V 3.6 V 170 mA 60 Ω 120 Ω –0 1 1.28 V –1 uses 4-layer JB ...

Page 5

... The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. (7) = 50Ω –2V, unless otherwise stated Condition See Figure 1a. See Figure 1b. (7) Condition 5 ® Precision Edge SY58038U Min Typ Max Units V –1.145 V –0.895 –1.945 V – ...

Page 6

... T is the time between rising edges of the output n–1 12 output edges will deviate by more than the V , DIFF_IN V 1600mV (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing ® SY58038U Max Units Gbps GHz 500 ps 600 ps fs/° 150 ...

Page 7

... FREQUENCY (MHz) Within Device Skew vs. Temperature 1.2 1.0 0.8 0.6 0.4 0.2 0 -40 - 100 TEMPERATURE (°C) 7 ® Precision Edge SY58038U Propagation Delay vs. Temperature 365 360 355 350 345 340 335 330 -40 - 100 TEMPERATURE (°C) ...

Page 8

... T = 25°C, unless otherwise stated 1.25Gbps Output (Q – /Q) TIME (200ps/div.) 3.2Gbps Output (Q – /Q) TIME (75ps/div.) 1.25GHz Output (Q – /Q) TIME (100ps/div.) 2.5Gbps Output (Q – /Q) TIME (100ps/div.) 200MHz Output (Q – /Q) TIME (600ps/div.) 2.5GHz Output (Q – /Q) TIME (50ps/div.) 8 ® Precision Edge SY58038U ...

Page 9

... Micrel, Inc. 5GHz Output (Q – /Q) TIME (30ps/div.) 9 ® Precision Edge SY58038U ...

Page 10

... For 2.5V 50Ω. pd Figure 3b. LVPECL Interface (AC-Coupled LVDS /IN SY58038U GND REF-AC Figure 3e. LVDS Interface 10 ® Precision Edge SY58038U CML /IN SY58038U GND REF-AC Option: May connect Figure 3c. CML Interface (DC-Coupled) ...

Page 11

... R2 82Ω Note: For +2.5V system, R For +3.3V system, R Data Sheet Link http://www.micrel.com/product-info/products/sy58037u.shtml http://www.micrel.com/product-info/products/sy58038u.shtml http://www.micrel.com/product-info/products/sy58039u.shtml www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml 11 Precision Edge +3. 50Ω 50Ω 50Ω 50Ω 0.01µF (optional) Figure 4b. Parallel Termination (3-Resistor) =19Ω 50Ω. b ® SY58038U ...

Page 12

... PCB Thermal Consideration for 44-Pin MLF (Always solder, or equivalent, the exposed pad to the PCB (408) 474-1000 FAX Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 12 Package EP- Exposed Pad Die ® Package http://www.micrel.com WEB ® Precision Edge SY58038U ...

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