Microchip SY89543L Handleiding

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1

Precision Edge

®

SY89543L

Micrel, Inc.

M9999-041608

[email protected] or (408) 955-1690

FUNCTIONAL BLOCK DIAGRAM

DESCRIPTION





Dual 2:1 multiplexer





Guaranteed AC performance over temp and voltage:

• DC-to > 3.2Gbps data rate throughput

• < 510ps In-to-Out t

pd

• < 150ps t

r

/t

f





Ultra-low jitter design:

• < 1ps

RMS

random jitter

• < 10ps

PP

deterministic jitter

• < 10ps

PP

total jitter (clock)

• < 0.7ps

RMS

crosstalk-induced jitter





Unique input isolation design minimizes crosstalk





Internal input termination





Unique input termination and V

T

pin accepts DC-

coupled and AC-coupled inputs (LVDS, LVPECL,

CML)





350mV LVDS output swing





CMOS/TTL compatible MUX select





Power supply 3.3V +10%





–40 to +85°C temperature range





Available in 32-pin (5mm x 5mm) MLF

®

package

FEATURES

3.3V, 3.2Gbps DUAL, DIFFERENTIAL

2:1 LVDS MULTIPLEXER with

INTERNAL TERMINATION

Precision Edge

®

SY89543L

APPLICATIONS





Redundant clock/data switchover





SONET/SDH multi-channel select applications





Fiber Channel applications





GigE applications

Rev.: EAmendment: /0

Issue Date:April 2008

The SY89543L includes two precision, high-speed 2:1

differential Muxes with LVDS (350mV) compatible outputs

with a guaranteed data rate throughput of 3.2Gbps over

temperature and voltage.

The SY89543L differential inputs include a unique, 3-pin

internal termination that allows access to the termination

network through a V

T

pin. This feature allows 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.

The SY89543L operates from a single 3.3V supply, and

is guaranteed over the full industrial temperature range

(–40°C to +85°C). For applications that require a 2.5V supply,

consider the SY89542U. The SY89543L is part of a Micrel’s

Precision Edge

®

product family. All support documentation

can be found on Micrel’s web site at www.micrel.com.

Precision Edge

®

LVDS

QA

/QA

INA0

/INA0

V

TA0

50Ω

50Ω

0

MUX A

2:1 MUX

1

INA1

/INA1

V

TA1

50Ω

50Ω

S

SELA (CMOS/TTL)

LVDS

QB

/QB

INB0

/INB0

V

TB0

50Ω

50Ω

0

MUX B

2:1 MUX

1

INB1

/INB1

V

TB1

50Ω

50Ω

S

SELB (CMOS/TTL)

Precision Edge is a registered trademark of Micrel, Inc.

Micro

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

Product specificaties