SY89546UMI Micrel Inc, SY89546UMI Datasheet

SY89546UMI

Manufacturer Part Number

SY89546UMI

Description

IC MUX 4:1 LVDS DIFF 2.5V 32MLF

Manufacturer

Micrel Inc

Series

SY89r

Type

Multiplexerr

Datasheet

1.SY89546UMG.pdf (10 pages)

Specifications of SY89546UMI

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.

M9999-060308

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

FEATURES

APPLICATIONS

TYPICAL PERFORMANCE

Selects among four differential inputs

Provides two copies of the selected input

Guaranteed AC performance over temp and voltage:

• DC-to > 3.2Gbps data rate throughput

• < 620ps In-to-Out t

• < 150ps t

Unique input isolation design minimizes crosstalk

Ultra-low jitter design:

• < 1ps

• < 10ps

• < 0.7ps

Internal input termination

Unique input termination and V

coupled and AC-coupled inputs (LVDS, LVPECL,

CML)

350mV LVDS output swing

Power supply 2.5V

–40

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

SONET/SDH multi-channel select applications

Fibre Channel applications

GigE applications

C to +85

RMS

400

350

300

250

200

150

100

deterministic jitter

total jitter (clock)

random jitter

C temperature range

crosstalk-induced jitter

1000 2000 3000 4000 5000 6000

Output Amplitude

FREQUENCY (MHz)

vs. Frequency

pin accepts DC-

2.5V, 3.2Gbps DIFFERENTIAL 4:1 LVDS

MULTIPLEXER WITH 1:2 FANOUT

AND INTERNAL TERMINATION

package

multiplexer that provides two copies of the selected input.

The high speed LVDS (350mV) compatible outputs with a

guaranteed throughput of up to 3.2Gbps over temperature

and voltage.

3-pin internal termination design that allows access to the

termination network through a V

the device to 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 SY89547L. Or, for applications that only require

one differential output, consider the SY89544U or SY89545L.

The SY89546U is part of Micrel’s Precision Edge

family.

site at www.micrel.com.

DESCRIPTION

FUNCTIONAL BLOCK DIAGRAM

The SY89546U is a precision, high-speed 4:1 differential

The SY89546U operates from a single 2.5V supply, and

All support documentation can be found on Micrel’s web

The SY89546U differential inputs include Micrel’s unique,

/IN0

/IN1

/IN2

/IN3

IN0

IN1

IN2

IN3

50Ω

SEL0 (CMOS/TTL)

SEL1 (CMOS/TTL)

3 S0

4:1 MUX

MUX

pin. This feature allows

Precision Edge

Rev.: D

Issue Date: June 2008

Precision Edge

1:2 Fanout

SY89546U

Amendment: /0

SY89546U

LVDS

product

/Q0

/Q1

Related parts for SY89546UMI

SY89546UMI Summary of contents

Page 1

Micrel, Inc. FEATURES Selects among four differential inputs Provides two copies of the selected input Guaranteed AC performance over temp and voltage: • DC-to > 3.2Gbps data rate throughput • < 620ps In-to-Out t pd • < 150ps t /t ...

Page 2

... GND, Exposed pad M9999-060308 hbwhelp@micrel.com or (408) 955-1690 (1) Ordering Information Package Part Number Type SY89546UMI MLF-32 (2) SY89546UMITR MLF-32 (3) SY89546UMG MLF-32 (2, 3) SY89546UMGTR 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 ...

Page 3

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

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 Output-to-Output Skew Part-to-Part Skew t Data Random ...

Page 6

Micrel, Inc. SINGLE-ENDED AND DIFFERENTIAL SWINGS OUT 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, GND = 0V 100mV 25° 200MHz Output Q /Q TIME (600ps/div.) 23 OC-12 Mask (2 TIME (300ps/div.) 1xGBE Mask (2 TIME (150ps/div.) 2xGBE Mask (2 TIME ...

Page 8

Micrel, Inc. INPUT AND OUTPUT STAGE INTERNAL TERMINATION INPUT INTERFACE APPLICATIONS CML /IN SY89546U GND Figure 4a. CML Interface (DC-Coupled LVPECL / SY89546U 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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