1

SY58023U

Micrel, Inc.

M9999-020207

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

DESCRIPTION

s Guaranteed AC performance over temperature and

voltage:

• >10.7Gbps data throughput

• <20ps skew

s Low jitter:

s Crosstalk induced jitter: <0.7ps

rms

s Accepts an input signal as low as 100mV

s Unique input termination and V

coupled and AC-coupled differential inputs:

LVPECL, LVDS, and CML

s 50

s Fully differential inputs/outputs

s Power supply 2.5V

s Industrial –40

s Available in 16-pin (3mm

FEATURES

ULTRA-LOW JITTER 2

××××× 2 CROSSPOINT

SWITCH w/CML OUTPUTS AND

INTERNAL I/O TERMINATION

SY58023U

Rev.: F

Amendment: /0

Issue Date:

February 2007

The SY58023U is a 2.5V/3.3V precision, high-speed, fully

differential CML 2

× 2 crosspoint switch. The SY58023U is

optimized to provide two identical output copies with less

than 20ps of skew and ultra-low jitter. It can route clock

signals as fast as 6GHz or data up to 10.7Gbps.

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

termination architecture that allows the SY58023U to directly

interface to LVPECL, LVDS, and CML differential signals

(AC- or DC-coupled) as small as 100mV (200mV

any level-shifting or termination resistor networks in the signal

path. The CML outputs features 400mV typical swing into

50

Ω loads, and provide an extremely fast rise/fall time

guaranteed to be less than 60ps.

The SY58023U operates from a +2.5V

±5% supply or

+3.3V

±10% supply and is guaranteed over the full industrial

temperature range (–40

°C to +85°C). For applications that

require high speed dual CML switches, consider the

SY58024U. The SY58023U is part of Micrel’s high-speed,

Datasheets and support documentation can be found on

Micrel’s website at www.micrel.com.

Precision Edge is a registered trademark of Micrel , Inc.

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

IN0

/IN0

Q1

/Q1

Q0

/Q0

50

Ω

50

Ω

IN1

/IN1

50

Ω

50

Ω

SEL0

(TTL/CMOS)

SEL1

(TTL/CMOS)

0

1

0

1

FUNCTIONAL BLOCK DIAGRAM

APPLICATIONS

s Gigabit Ethernet data/clock routing

s SONET data/clocking routing

s Switch fabric clock routing

s Redundant switchover

s Backplane redundancy