2

SY58022U

Micrel, Inc.

Package

Operating

Package

Lead

Part number

Type

Range

Marking

Finish

SY58022UMI

MLF-16

Industrial

022U

Sn-Pb

MLF-16

Industrial

022U

Sn-Pb

SY58022UMG

MLF-16

Industrial

022U with

Pb-Free

Pb-Free bar-line indicator

NiPdAu

Industrial

022U with

Pb-Free

Pb-Free bar-line indicator

NiPdAu

Notes:

1. Contact factory for die availability. Die are guaranteed at T

2. Tape and Reel.

PACkAgE/ORDERIng InFORMATIOn

Pin number

Pin name

Pin Function

1, 4

IN, /IN

Differential Input: This input pair receives the signal to be buffered. Each pin is internally

terminatedwith50ΩtotheV

if left open. See “Input Interface Applications”section.

2

VT

Input Termination Center-Tap: Each input terminates to this pin. The V

center-tap for each input (IN, /IN) to the termination network for maximum interface

flexibility.See“InputInterfaceApplications”section.

3

VREF-AC

Reference Output Voltage: This output biases to V

to differentail inputs. Connect V

capacitor to V

8, 13

VCC

Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the

pins as possible. A 0.01µF capacitor should be as close to the V

5, 16

GND,

Ground. Exposed pad must be connected to a ground plane that is the same potential

Exposed Pad

as the ground pin.

14, 15

/Q0, Q0,

LVPECL Differential Output Pairs: Differential buffered output copy of the input signal. The

11,12

/Q1,Q1,

outputswingistypically400mV.Properterminationis50ΩtoV

9,10

/Q2,Q2,

end.Unusedoutputpairsmaybeleftfloatingwithnoimpactonjitterorskew.

6, 7

/Q3, Q3,

See “LVPECL Output Termination”section.

PIN DESCRIPTION

13

14

15

16

12

11

10

9

1

2

3

4

8

7

6

5

IN

VT

VREF-AC

/IN

Q1

/Q1

Q2

/Q2