Micrel, Inc.

SY58604U

September 2011

2

M9999-092911-D

hbwhelp@micrel.com

Ordering Information

(1)

Part Number

Package Type

Operating Range

Package Marking

SY58604UMG

DFN-8

Industrial

604 with Pb-Free

bar-line indicator

SY58604UMGTR

(2)

DFN-8

Industrial

604 with Pb-Free

bar-line indicator

Notes:

1.

2.

Tape and Reel.

Pin Configuration

8-Pin DFN

Pin Description

Pin Number

Pin Name

Pin Function

1, 4

IN, /IN

Differential Input: This input pair is the differential signal input to the device. Input

accepts DC-Coupled differential signals as small as 100mV (200mVpp). Each pin of

this pair internally terminates with 50Ω to the VT pin. If the input swing falls below a

certain threshold (typical 30mV), the Fail Safe Input (FSI) feature will guarantee a

stable output by latching the output to its last valid state. See “Input Interface

Applications” subsection for more details.

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” subsection.

3

VREF-AC

IN and /IN. Connect VREF-AC directly to the VT pin. Bypass with 0.01µF low ESR

capacitor to VCC. Maximum sink/source current is ±1.5mA. See “Input Interface

Applications” subsection for more details.

5

GND,

Exposed pad

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

potential as the ground pin.

6, 7

/Q, Q

LVPECL Differential Output Pair: Differential buffered output copy of the input

signal. The output swing is typically 800mV. See “LVPECL Output Termination”

subsection.

8

VCC

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

or (408) 955-1690