Microchip SY58609U Handleiding

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SY58609U

Features

•Precision 400mV CML 2:1 MUX

•Guaranteed AC Performance Over Temperature

and Voltage:

-DC-to >4.25Gbps Throughput

-<370ps Propagation Delay (IN-to-Q)

-<90ps Rise/Fall Times

•Fail Safe Input

-Prevents Outputs from Oscillating when Input

is Invalid

•Unique, Patented MUX Input Isolation Design

Minimizes Adjacent Channel Crosstalk

•Ultra-low Jitter Design

-<1ps

RMS

Cycle-to-Cycle Jitter

-<10ps

PP

Total Jitter

-<1ps

RMS

Random Jitter

-<10ps

PP

Deterministic 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 3mm × 3mm VQFN

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

General Description

The SY58609U is a 2.5/3.3V, high-speed, fully

differential CML 2:1 MUX capable of processing clock

signals up to 2.5GHz and data patterns up to

4.25Gbps. The SY58609U is optimized to provide a

buffered output of the selected input with less than

20ps of skew and less than 10pspp total jitter.

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

input termination architecture that interfaces to

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

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

any level-shifting or termination resistor networks in the

signal path. For AC-coupled input interface

applications, an integrated reference voltage (V

REF-AC

)

is provided to bias the VT pin. The outputs are 400mV

CML, with extremely fast rise/fall times guaranteed to

be less than 90ps.

The SY58609U 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 SY58610U and SY58611U, 2:1

MUX with 800mV and 325mV output swings,

respectively. The SY58609U is part of Microchip’s

high-speed Precision Edge

®

product line.

Package Type

SY58609U

16-Lead VQFN

4.25Gbps Precision, CML 2:1 MUX with Internal Termination and Fail Safe Input

Product specificaties