1

Precision Edge™

SY58018U

Micrel

M0643-012704

DESCRIPTION

s Guaranteed AC performance over temperature and

voltage:

• DC to 5Gbps data throughput

• < 260ps propagation delay

s Ultra-low crosstalk-induced jitter: 0.7ps

rms

s Ultra-low jitter design:

s Unique input termination and V

coupled and AC-coupled inputs (CML, PECL, LVDS)

s 800mV (100k) LVPECL output swing

s Power supply 2.5V

s –40

s Available in 16-pin (3mm

××××× 3mm) MLF™ package

FEATURES

ULTRA-PRECISION

DIFFERENTIAL LVPECL 2:1 MUX

with INTERNAL TERMINATION

Precision Edge™

SY58018U

APPLICATIONS

s Redundant clock distribution

s SONET/SDH clock/data distribution

s Loopback

s Fibre Channel distribution

Rev.: A

Amendment: /0

Issue Date:

Jan. 2004

The SY58018U is a 2.5V/3.3V precision, high-speed, 2:1

differential MUX capable of handling clocks up to 4GHz

and data up to 5Gbps.

The differential input includes Micrel’s unique, 3-pin input

termination architecture that allows customers to interface

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 110ps.

The SY58018U operates from a 2.5V

±5% supply or a

3.3V

±10% supply and is guaranteed over the full industrial

temperature range of –40

°C to +85°C. For applications that

require CML outputs, consider the SY58017U or for 400mV

LVPECL outputs the SY58019U. The SY58018U is part of

Micrel’s high-speed, Precision Edge™ product line.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

FUNCTIONAL BLOCK DIAGRAM

TYPICAL PERFORMANCE

Precision Edge is a trademark of Micrel, Inc.

AnyGate is a registered trademark of Micrel, Inc.

Precision Edge™

Q0

/Q0

IN0

/IN0

50

Ω

50

Ω

IN1

/IN1

50

Ω

50

Ω

0

1

MUX

SEL

(TTL/CMOS)

S

5Gbps Output

TIME (25ps/div.)

(2