Rainbow-electronics MAX9486 Bedienungsanleitung PDF herunterladen

General Description

The MAX9486 low-cost, high-performance clock syn-

thesizer with an 8kHz input reference clock provides six

buffered LVTTL clock outputs at 35.328MHz. The clock

synthesizer can be used to generate the clocks for T1,

E1, T3, E3, and xDSL.

The MAX9486 has two phase-lock loops (PLLs). The

first PLL uses a voltage-controlled crystal oscillator

(VCXO). The second PLL is a frequency multiplier. With

the two PLLs, the MAX9486 generates the output fre-

quency at 35.328MHz. In addition, this device gener-

ates a jitter-suppressed 8kHz output that provides a

better source for the reference clock relay.

The MAX9486 is available in a 24-pin TSSOP package

and operates over the extended operating temperature

range of -40°C to +85°C and a single +3V to +3.6V

power-supply range.

Applications

Telecom Equipment Using T1, E1, T3, E3, and

ISDN Protocols

xDSL Equipment in CO with Interface to the

Telecom Protocols

Features

♦ 8kHz Input Reference CLK

♦ High-Jitter Rejection on the Reference CLK

♦ Synthesizer Locks to the 8kHz Reference with a

±200ppm Range

♦ Output Frequency: 35.328MHz

♦ Six Buffered LVTTL Low-Jitter Outputs

♦ One 8kHz Reference CLK Relay Output

♦ +3.3V Supply Operation

♦ 24-Pin TSSOP Package

MAX9486

8kHz Reference Clock Synthesizer

with Multiple Outputs at 35.328MHz

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3345; Rev 0; 8/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX9486EUG -40°C to +85°C 24 TSSOP

CLK1

GND

CLK2

DDP

REIN

REO

TOP VIEW

CLK3

GND

CLK4X2

GNDP

CLK5

GND

CLK6SETI

LP1

LP2

GND

TSSOP

MAX9486

SHDN

Pin Configuration

MAX9486

CLK2

CLK1

DDP

GNDP

REO

CLK6

CLK5

CLK4

CLK3

GND

LP1 LP2

REIN

SET

SETI

SHDN

Typical Application Circuit

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1 - TOP VIEW

General DescriptionThe MAX9486 low-cost, high-performance clock syn-thesizer with an 8kHz input reference clock provides sixbuffered LVTTL clock outpu

Seite 2 - DC ELECTRICAL CHARACTERISTICS

MAX94868kHz Reference Clock Synthesizerwith Multiple Outputs at 35.328MHz2 ___________________________________________________________________________

Seite 3 - AC ELECTRICAL CHARACTERISTICS

MAX94868kHz Reference Clock Synthesizerwith Multiple Outputs at 35.328MHz_____________________________________________________________________________

Seite 4 - = +3.3V, T

MAX94868kHz Reference Clock Synthesizerwith Multiple Outputs at 35.328MHz4 ___________________________________________________________________________

Seite 5 - Pin Description

MAX94868kHz Reference Clock Synthesizerwith Multiple Outputs at 35.328MHz_____________________________________________________________________________

Seite 6 - Functional Diagram

MAX9486Detailed DescriptionThe MAX9486 is a high-performance clock synthesizerwith an 8kHz input reference clock. This device gener-ates six identical

Seite 7 - Applications Information

SHDNModeThe MAX9486 features a shutdown mode with a supplycurrent less than 8µA (typ). Drive SHDN low to get thedevice into shutdown mode. In this mod

Seite 8 - Package Information

MAX94868kHz Reference Clock Synthesizerwith Multiple Outputs at 35.328MHzMaxim cannot assume responsibility for use of any circuitry other than circui

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Inhaltsverzeichnis

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