2

Precision Edge®

SY89327L

Micrel, Inc.

M9999-072005

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

PACKAGE/ORDERING INFORMATION

Pin Number

Pin Name

Pin Function

2, 3

IN, /IN

Differential inputs: This input is the differential signal input to the device. This input

accepts AC- or DC-coupled signals as small as 100mV. External termination is required.

Please refer to the “Input Interface Applications” section for more details.

8

VCC

Positive power supply. Bypass with 0.1

µF0.01µF low ESR capacitors.

7, 6

Q, /Q

Differential LVPECL Output: Terminate with 50

Ω to V

Applications” section. Output pair is 100k temperature compensated LVPECL compatible.

5

GND,

Ground: Ground pin and exposed pad must be connected to the same ground plane.

Exposed Pad

1, 4

NC

No connect.

PIN DESCRIPTION

NC

IN

/IN

NC

VCC

Q

/Q

GND

1

2

3

4

8

7

6

5

8-Lead MLF™

FUNCTIONAL DESCRIPTION

Establishing Static Logic Inputs

Do not leave unused inputs floating. Tie either the true or

complement input to ground. A logic zero is achieved by

connecting the complement input to ground with the true

input floating. For a TTL input, tie a 2.5k

Ω resistor between

the complement input and ground. See “Input Interface”

section.

Input Levels

LVDS, CML, and HSTL differential signals may be

connected directly to the D inputs. Depending on the actual

worst case voltage seen, the SY8327L's performance varies

as per the following table:

Input Voltage

Minimum

Maximum

Range

Voltage Swing

Translation Speed

0 to 2.4V

100mV

2.5Gbps

0 to V

200mV

1.25Gbps

For LVDS applications, only point-to-point interfaces are

supported. Due to the current required by the input structure

shown in Figure 1, multi-drop and multi-point architectures

are not supported.

R2

1.5k

Ω

R2

1.5k

Ω

R1

1.05k

Ω

R1

1.05k

Ω

GND

Figure 1. Simplified Input Structure

Ordering Information

Package

Operating

Package

Lead

Part Number

Type

Range

Marking

Finish

SY89327LMITR

MLF-8

Industrial

327

Sn-Pb

SY89325LMGTR

MLF-8

Industrial

327 with

Pb-Free

Pb-Free bar-line indicator

NiPdAu