SY58012UMG datasheet(2/9 Pages) MICREL

Part #	SY58012UMG

Description	5GHz, 1:2 LVPECL FANOUT BUFFER/TRANSLATOR WITH INTERNAL INPUT TERMINATION

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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2 / 9 page

2

Precision Edge®

SY58012U

Micrel, Inc.

M9999-051408

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

PACKAGE/ORDERING INFORMATION

Pin Number

Pin Name

Pin Function

1, 4

IN, /IN

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

terminates with 50

Ω to the V

T pin. Note that this input will default to an indeterminate state

if left open. See

“Input Interface Applications” section.

2

VT

Input Termination Center-Tap: Each input terminates to this pin. The VT pin provides a

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

See

“Input Interface Applications” section.

3

VREF-AC

Reference Output Voltage: This output biases to VCC –1.2V. It is used when AC-coupling

the inputs (IN, /IN). Connect V

REF-AC directly to the VT pin. Bypass with 0.01µF low ESR

capacitor to VCC. Maximum current source or sink is 0.5mA. See “Input Interface

Applications” section.

5, 8, 13, 16

VCC

Positive Power Supply: Bypass with 0.1

µF//0.01µF low ESR capacitors as close to the

VCC pins as possible.

6, 7, 14, 15

GND,

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

Exposed Pad

as the ground pin.

12, 11

Q0, /Q0,

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

9, 10

Q1, /Q1

output swing is typically 800mV. Unused output pairs may be left floating with no impact on

jitter. 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

Q0

/Q0

/Q1

Q1

16-Pin MLF® (MLF-16)

Ordering Information(1)

Package

Operating

Package

Lead

Part Number

Type

Range

Marking

Finish

SY58012UMI

MLF-16

Industrial

012U

Sn-Pb

SY58012UMITR(2)

MLF-16

Industrial

012U

Sn-Pb

SY58012UMG(3)

MLF-16

Industrial

012U with

Pb-Free

Pb-Free bar-line indicator

NiPdAu

SY58012UMGTR(2, 3)

MLF-16

Industrial

012U with

Pb-Free

Pb-Free bar-line indicator

NiPdAu

Notes:

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

A = 25°C, DC electricals only.

2. Tape and Reel.

3. Pb-Free package recommended for new designs.

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