SY89544UMI Micrel Inc, SY89544UMI Datasheet

SY89544UMI

Manufacturer Part Number

SY89544UMI

Description

IC MUX 4:1 LVDS DIFF 2.5V 32MLF

Manufacturer

Micrel Inc

Series

SY89r

Type

Multiplexerr

Datasheet

1.SY89544UMG.pdf (10 pages)

Specifications of SY89544UMI

Circuit

1 x 4:1

Independent Circuits

Voltage Supply Source

Single Supply

Voltage - Supply

3 V ~ 3.6 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

32-MLF®, QFN

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Current - Output High, Low

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Micrel, Inc.

Precision Edge is a registered trademark of Micrel, Inc.

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

M9999-082407

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

FEATURES

APPLICATIONS

TYPICAL PERFORMANCE

Selects among four differential inputs

Guaranteed AC performance over temp and voltage:

• DC-to > 3.2Gbps data rate throughput

• < 600ps In-to-Out t

• < 150ps t

Ultra low-jitter design:

• < 1ps

• < 10ps

• < 0.7ps

Unique input isolation design minimizes crosstalk

Internal input termination

Unique input termination and V

Coupled and AC-Coupled inputs (LVDS, LVPECL,

CML)

350mV LVDS output swing

CMOS/TTL compatible MUX select

Power supply 2.5V

–40

Available in 32-pin (5mm x 5mm) MLF

SONET/SDH channel select applications

Fibre Channel multi-channel select applications

Gigabit Ethernet multi-channel select

C to +85

RMS

400

350

300

250

200

150

100

deterministic jitter

total jitter (clock)

random jitter

C temperature range

crosstalk-induced jitter

Output Amplitude

FREQUENCY (GHz)

vs. Frequency

pin accepts DC-

package

2.5V, 3.2Gbps, DIFFERENTIAL 4:1

LVDS MULTIPLEXER WITH

INTERNAL INPUT TERMINATION

with an LVDS (350mV) compatible output with guaranteed

data rate throughput of 3.2Gbps over temperature and

voltage.

internal termination that allows access to the termination

network through a V

easily interface to different logic standards, both AC- and

DC-coupled without external resistor-bias and termination

networks. The result is a clean, stub-free, low-jitter interface

solution.

is guaranteed over the full industrial temperature range

(–40°C to +85°C). For applications that require a 3.3V supply,

consider the SY89545L. For applications that require two

differential outputs, consider the SY89546U or SY89547L.

The SY89544U is part of Micrel’s Precision Edge

family.

site at www.micrel.com.

DESCRIPTION

FUNCTIONAL BLOCK DIAGRAM

The SY89544U is a fast, low-jitter, 4:1 differential MUX

The SY89544U operates from a single 2.5V supply and

All support documentation can be found on Micrel’s web

The SY89544U differential inputs include a unique, 3-pin

/IN0

/IN1

/IN2

/IN3

IN0

IN1

IN2

IN3

50Ω

SEL0

SEL1

pin. This feature allows the device to

3 S0

4:1 MUX

MUX

Precision Edge

Rev.: C

Issue Date: August 2007

Precision Edge

SY89544U

LVDS

Amendment: /0

SY89544U

product

Related parts for SY89544UMI

SY89544UMI Summary of contents

Page 1

Micrel, Inc. FEATURES Selects among four differential inputs Guaranteed AC performance over temp and voltage: • DC-to > 3.2Gbps data rate throughput • < 600ps In-to-Out t pd • < 150ps Ultra low-jitter design: • < ...

Page 2

... Exposed pad 14 M9999-082407 hbwhelp@micrel.com or (408) 955-1690 (1) Ordering Information Package Part Number Type SY89544UMI MLF-32 (2) SY89544UMITR MLF-32 (3) SY89544UMG MLF-32 (2, 3) SY89544UMGTR MLF-32 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. 3. Recommended for new designs. Pin Function Differential Inputs: These input pairs are the differential signal inputs to the device. Inputs accept AC- or DC-coupled signals as small as 100mV ...

Page 3

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

Page 4

Micrel, Inc. 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 ...

Page 5

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS V = 2.5V ±5 –40°C to +85° Symbol Parameter f Maximum Operating Frequency MAX t Differential Propagation Delay pd t Input-to-Input Skew SKEW Part-to-Part Skew t Data Random Jitter (RJ) ...

Page 6

Micrel, Inc. SINGLE-ENDED AND DIFFERENTIAL SWINGS V V Figure 1a. Single-Ended Voltage Swing TIMING DIAGRAM IN / SEL Q /Q TRUTH TABLE IN0 IN1 ...

Page 7

Micrel, Inc. FUNCTIONAL CHARACTERISTICS V = 2.5V 25° 200MHz Output Q /Q Time (500ps/div.) 23 OC-12 Mask (2 Time (300ps/div.) 23 1xGBE Mask (2 Time (150ps/div.) 2xGBE Mask (2 Time (70ps/div.) M9999-082407 hbwhelp@micrel.com or (408) 955-1690 ...

Page 8

Micrel, Inc. INPUT AND OUTPUT STAGE INTERNAL TERMINATION INPUT INTERFACE APPLICATIONS CML /IN SY89544U GND Figure 4a. CML Interface (DC-Coupled LVPECL / SY89544U p p GND V –1.4V CC ...

Page 9

Micrel, Inc. OUTPUT INTERFACE APPLICATIONS LVDS specifies a small swing of 350mV typical nominal 1.25V common mode above ground. The common mode voltage has tight limits to permit large variations GND Figure ...

Page 10

Micrel, Inc. 32 LEAD MicroLeadFrame Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to a ground for proper thermal management. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, ...

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