Instrukcja obsługi Microchip SY58606U

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 2019 Microchip Technology Inc.DS20006199A-page 1

SY58606U

Features

•Precision 1:2, 400 mV CML Fanout Buffer

•Guaranteed AC Performance over Temperature

and Voltage:

-DC-to >4.25 Gbps Throughput

-<320 ps Propagation Delay (IN-to-Q)

-<15 ps Within-Device Skew

-<85 ps Rise/Fall Times

•Fail Safe Input

-Prevents Outputs From Oscillating When

Input is Invalid

•Ultra-Low Jitter Design

-100 fsRMS Typical Additive Jitter

•High-Speed CML Outputs

•2.5V ±5% or 3.3V ±10% Power Supply Operation

•Industrial Temperature Range: –40°C to +85°C

•Available In 16-lead (3 mm x 3 mm) QFN

Package

Applications

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

•SONET Clock and Data Distribution

•Fibre Channel Clock and Data Distribution

•Gigabit Ethernet Clock And Data Distribution

Markets

• Storage

• ATE

•Test and Measurement

•Enterprise Networking Equipment

•High-End Servers

• Access

•Metro Area Network Equipment

General Description

The SY58606U is a 2.5/3.3V, high-speed, fully

differential 1:2 CML fanout buffer optimized to provide

two identical output copies with less than 15 ps of skew

and 100 fsRMSof typical additive phase jitter. The

SY58606U can process clock signals as fast as 3 GHz

or data patterns up to 4.25 Gbps.

The differential input includes Microchip’s unique,

3-lead input termination architecture that interfaces to

LVPECL, LVDS, or CML differential signals, (AC- or

DC-coupled) as small as 100 mV (200 mVPP) without

any level-shifting or termination resistor networks in the

signal path. For AC-coupled input interface

applications, an integrated voltage reference (V

REF-AC)

is provided to bias the VTpin. The outputs are 400 mV

CML, with extremely fast rise/fall times guaranteed to

be less than 85 ps.

The SY58606U operates from a 2.5V ±5% supply or

3.3V ±10% supply and is guaranteed over the full

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

applications that require LVPECL or LVDS outputs,

consider Microchip’s SY58607U and SY58608U, 1:2

fanout buffers with 800 mV and 325 mV output swings

respectively. The SY58606U is part of Microchip’s

high-speed, Precision Edge® product line.

Package Type

SY58606U

3 mm x 3 mm QFN-16 (M)

(Top View)

13141516

12

11

10

9

1

2

3

4

8765

IN

VT

VREF-AC

/IN

Q0

/Q0

Q1

/Q1

VCC

GND

GND

VCC

VCC

GND

GND

VCC

4.25 Gbps Precision, 1:2 CML Fanout Buffer with Internal Termination and

Fail Safe Input

Specyfikacje produktu