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MAX31D80T-xxx+T

更新时间： 2024-11-04 11:55:55

品牌	Logo	应用领域
美信 - MAXIM		时钟发生器
页数	文件大小	规格书
9页	789K
描述
Spread-Spectrum Clock Generators

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数据手册

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19-5214; Rev 0; 4/10

Spread-Spectrum Clock Generators

General Description

Features

S 2MHz to 134MHz Spread-Spectrum Clock

The MAX31C80/MAX31D80 are spread-spectrum clock

generators that contain a phase-locked loop (PLL)

that generates a 2MHz to 134MHz clock from an input

clock or crystal. The PLL can provide a spread-spec-

trum down-dithered (MAX31D80) or center-dithered

(MAX31C80) frequency-modulated clock. The devices

also buffer the incoming clock and provide this output

on a separate pin.

Generator

S Input Can Be Either an 8MHz to 34MHz Crystal or

8MHz to 134MHz Clock

S Factory-Programmable Output Frequencies in

2MHz to 134MHz Range

S Low-Cost Crystal at Low Frequency Used to

Generate High Frequencies

The MAX318C80/MAX31D80 are provided in a 10-pin

TDFN package and operate over a full -40NC to +125NC

automotive temperature range. Devices can be factory

programmed for multiple combinations of input and out-

put frequencies (see the Ordering Information table). A

low-cost, low-frequency crystal can be used at the input

to generate frequencies up to 134MHz.

S On-Board PLL is Capable of Spread-Spectrum

Frequency Modulation

S Down- or Center-Dither Spread-Spectrum

Frequency Modulation

S User-Configurable Spread-Spectrum Dither

Magnitude

Typical Application Circuit

S Low Cycle-to-Cycle Jitter

S 3.3V Supply Voltage

f

= 27MHz

IN

S Temperature Range: -40NC to +125NC

S Small Package: 10-Pin TDFN (3mm x 3mm x

0.8mm)

f

IN

= 27MHz

X1

X2

Applications

Graphics Cards

MAX31D80

XOUT

27MHz CLOCK

= 100MHz

V

CC

CLKOUT

f

CLKOUT

SMSEL1

Set-Top Boxes

1.5% DOWN DITHERED

V

CC

Automotive Infotainment

Printers

SMSEL0

GND

V

CC

DECOUPLING

CAPACITOR

Ordering Information

PART

TEMP RANGE

DITHER MODE

Center

PIN-PACKAGE

10 TDFN-EP*

10 TDFN-EP*

10 TDFN-EP*

10 TDFN-EP*

MAX31C80T-xxx+

MAX31C80T-xxx+T

MAX31D80T-xxx+

MAX31D80T-xxx+T

-40NC to +125NC

-40NC to +125NC

-40NC to +125NC

-40NC to +125NC

Center

Down

Down

xxx = Factory-programmable output frequency and dither rate (see the Selector Guide table).

+Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

*EP = Exposed pad.

Selector Guide appears at end of data sheet.

_______________________________________________________________ Maxim Integrated Products

1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...9

中文翻译

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