Microchip SY58607U Handleiding

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 2019 Microchip Technology Inc.DS20006227A-page 1

SY58607U

Features

•Precision 1:2, 800 mV LVPECL Fanout Buffer

•Guaranteed AC Performance over Temperature

and Voltage:

-DC-to >3.2 Gbps Throughput

-<350 ps Propagation Delay (IN-to-Q)

-<20 ps Within-Device Skew

-<110 ps Rise/Fall Times

•Fail Safe Input

-Prevents Outputs From Oscillating When

Input is Invalid

•Ultra-Low Jitter Design

-41 fs Additive Phase Jitter

•High-Speed LVPECL 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

•All SONET Clock and Data Distribution

•Fibre Channel Clock and Data Distribution

•Gigabit Ethernet Clock And Data Distribution

•Backplane Distribution

Markets

• Storage

• ATE

•Test and Measurement

•Enterprise Networking Equipment

•High-End Servers

• Access

•Metro Area Network Equipment

General Description

The SY58607U is a 2.5V/3.3V, high-speed, fully

differential 1:2 LVPECL fanout buffer optimized to

provide two identical output copies with less than 20 ps

of skew. The SY58607U can process clock signals as

fast as 2.5 GHz or data patterns up to 3.2 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

(VREF-AC) is provided to bias the VT pin. The outputs

are 800 mV LVPECL, with extremely fast rise/fall times

guaranteed to be less than 110 ps.

The SY58607U 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 CML or LVDS outputs,

consider Microchip’s SY58606U and SY58608U, 1:2

fanout buffers with 400 mV and 325 mV output swings

respectively. The SY58607U is part of Microchip’s

high-speed, Precision Edge® product line.

Package Type

SY58607U

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

3.2 Gbps Precision, 1:2 LVPECL Fanout Buffer

with Internal Termination and Fail Safe Input

Product specificaties