DS1080LU+ Datasheet DS1080LU+, DS1080LU+T, DS1080LU+A00 | P1-P3

General Description

The DS1080L is a low-jitter, crystal-based clock gener-

ator with an integrated phase-locked loop (PLL) to gen-

erate spread-spectrum clock outputs from 16MHz to

134MHz. The device is pin-programmable to select the

clock multiplier rate as well as the dither magnitude.

The DS1080L has a spread-spectrum disable mode

and a power-down mode to conserve power.

Applications

Automotive

Cable Modems

Cell Phones

Computer Peripherals

Copiers

Infotainment

PCs

Printers

Features

! Generates Spread-Spectrum Clocks from 16MHz

to 134MHz

! Selectable Clock Multiplier Rates of 1x, 2x, and 4x

! Center Spread-Spectrum Dithering

! Selectable Spread-Spectrum Modulation

Magnitudes of ±0.5%, ±1.0%, and ±1.5%

! Spread-Spectrum Disable Mode

! Low Cycle-to-Cycle Jitter

! Power-Down Mode with High-Impedance Output

! Low Power Consumption

! 3.0V to 3.6V Single-Supply Operation

! -40°C to +125°C Temperature Operation

! Small 8-Lead µSOP Package

Spread-Spectrum Crystal Multiplier

DS1080L

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

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

SSO

PDNSMSEL

GND

CMSEL

µSOP

TOP VIEW

DS1080L

Pin Configuration

19-4997; Rev 5; 3/13

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

/V denotes an automotive qualified part.

T = Tape and reel.

Ordering Information

PART TEMP RANGE PIN-PACKAGE

DS1080LU+ -40°C to +125°C 8 µSOP

DS1080LU/V+ -40°C to +125°C 8 µSOP

DS1080LU/V+T -40°C to +125°C 8 µSOP

DS1080LU+T -40°C to +125°C 8 µSOP

Spread-Spectrum Crystal Multiplier

2 Maxim Integrated

DS1080L

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED OPERATING CONDITIONS

= -40°C to +125°C, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Voltage on V

Relative to GND...........................-0.3V to +4.3V

Voltage on Any Lead Relative

to GND .................-0.3V to (V

+ 0.3V), not to exceed +4.3V

Continuous Power Dissipation (T

= +70°C)

µSOP (derate 4.5mW/°C above +70°C).......................362mW

Operating Temperature Range .........................-40°C to +125°C

Storage Temperature Range .............................-55°C to +125°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

(Note 1) 3.0 3.6 V

Input Logic 1 V

0.8 x

0.3

Input Logic 0 V

GND

0.3

0.2 x

Input Logic Open I

0V < V

< V

(Note 2) ±1 µA

Input Leakage I

0V < V

< V

(Note 3) ±80 µA

SSO

< 67MHz 15

67MHz  f

SSO

< 101MHz 10

SSO Load C

SSO

101MHz  f

SSO

< 134MHz 7

Crystal or Clock Input

Frequency

16.0 33.4 MHz

Crystal ESR X

ESR

90 

Clock Input Duty Cycle F

INDC

40 60 %

Crystal Parallel Load

Capacitance

(Note 4) 18 pF

DC ELECTRICAL CHARACTERISTICS

= +3.0V to +3.6V, T

= -40°C to +125°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Curr ent I

CC1

SSO

= 15pF, SSO = 16MHz 15 mA

Power-Down Current I

CCQ

PDN = GND, all input pins open 200 µA

Output Leakage (SSO) I

PDN = GND -1 +1 µA

Low-Level Outp ut Voltage

(SS O)

= 4mA 0.4 V

High-Level Output Voltage

(SS O)

= -4mA 2.4 V

Input Capacitance (X1/X2) C

(Note 5) 5 pF

Spread-Spectrum Crystal Multiplier

Maxim Integrated 3

DS1080L

AC ELECTRICAL CHARACTERISTICS

= +3.0 to +3.6V, T

= -40°C to +125°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Measured at V

/2, CMSEL = 0 or ope n 40 60

SSO Duty Cycle SSODC

Measured at V

/2, CMSEL = 1 30 70

Rise Time t

(Note 6) 1.6 ns

Fall Time t

(Note 6) 1.6 ns

Peak Cycle-to-Cycle Jitter t

SSO

= 16MHz, T

= -40 to +85°C,

10,000 cycles ( Note 5)

75 ps

16MHz 20

Power-Up Time t

POR

PDN pin (Note 7)

33.4MHz 11

Power-Down Time t

PDN

PDN pin (Notes 8 and 9) 100 ns

Dither R ate f

DITHER

(Note 9) f

/992

Note 1: All voltages referenced to ground.

Note 2: Maximum source/sink current applied to input to be considered an open. Typical voltage range between 0.4 x V

and 0.55

x V

Note 3: Applicable to pins CMSEL, SMSEL, and PDN.

Note 4: See information about C

and C

in the

Applications Information

section at the end of the data sheet.

Note 5: Not production tested.

Note 6: For 7pF load.

Note 7: Time between PDN deasserted to output active.

Note 8: Time between PDN asserted to output high impedance.

Note 9: Guaranteed by design.

P1-P3 P4-P6 P7-P8

DS1080LU+

Mfr. #:

Buy DS1080LU+

Manufacturer:

Maxim Integrated

Description:

Clock Generators & Support Products Spread-Spectrum Crystal Multiplier

Lifecycle:

New from this manufacturer.

Delivery:

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DS1080LU+

DS1080LU+

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