Microchip SY58022U Bedienungsanleitung

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 2023 Microchip Technology Inc. and its subsidiariesDS20006800A-page 1

SY58022U

Features

•Precision 1:4, 400mV LVPECL Fanout Buffer

•Ensured AC Performance over Temperature and

Voltage:

->5.5GHz f

MAX

Clock

-<80ps t

r

/t

f

Times

-<250ps (V

IN

≥300mV) t

PD

-<15ps Maximum Skew

•Low Jitter Performance: 60fs

RMS

Phase Jitter

•Accepts an Input Signal as Low as 100mV

•Unique Input Termination and VT Pin Accepts DC-

and AC-Coupled Differential Inputs: LVPECL,

LVDS, and CML

•400mV LVPECL Compatible Outputs

•Power Supply: 2.5V ±5% and 3.3V ±10%

•–40°C to +85°C Temperature Range

•Available in a 16-Lead 3mm x 3mm VQFN

Package

Applications

•All SONET and All GigE Clock Distribution

•Fibre Channel Clock and Data Distribution

•Backplane Distribution

•Data Distribution: OC-48, OC-48+FEC, XAUI

•High-End, Low-Skew, Multiprocessor

Synchronous Clock Distribution

General Description

The SY58022U is a 2.5V/3.3V precision, high-speed,

fully differential 1:4 LVPECL fanout buffer. Optimized to

provide four identical output copies with less than 15ps

of skew and less than 10ps

PP

total jitter, the

SY58022U can process clock signals as fast as

5.5GHz.

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

input termination architecture interfaces to differential

LVPECL, CML, and LVDS signals (AC- or DC-coupled)

as small as 100mV without any level-shifting or

termination resistor networks in the signal path. For

AC-coupled input interface applications, an on-board

output reference voltage (V

REF-AC

) is provided to bias

the VT pin. The outputs are 400mV LVPECL

compatible with extremely fast rise/fall times ensured to

be less than 80ps.

The SY58022U operates from a 2.5V ±5% supply or

3.3V ±10% supply and is ensured over the full industrial

temperature range (–40°C to +85°C). For applications

that require greater output swing or CML compatible

outputs, consider the SY58021U 1:4 fanout buffer with

LVPECL outputs, or the SY58020U 1:4 fanout buffer

with 400mV CML outputs.

Package Type

SY58022U

3mm x 3mm VQFN (M)

(Top View)

13141516

12

11

10

9

1

2

3

4

8765

IN

VT

VREF-AC

/IN

Q1

/Q1

Q2

/Q2

GND

Q0

/Q0

VCC

GND

/Q3

Q3

VCC

5.5GHz, 1:4 Fanout Buffer/Translator with 400mV LVPECL

Outputs and Internal Input Termination

Produktspezifikationen