DS1080LU+ Maxim Integrated Products, DS1080LU+ Datasheet

IC CRYSTAL MULT SS 8-USOP

DS1080LU+

Manufacturer Part Number
DS1080LU+
Description
IC CRYSTAL MULT SS 8-USOP
Manufacturer
Maxim Integrated Products
Type
Crystal Multiplier, Spread Spectrum Clock Generatorr
Datasheet

Specifications of DS1080LU+

Pll
Yes
Input
Clock, Crystal
Output
LVCMOS
Number Of Circuits
1
Ratio - Input:output
1:1
Differential - Input:output
No/No
Frequency - Max
134MHz
Divider/multiplier
No/Yes
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Frequency-max
134MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
19-4997; Rev 2; 10/09
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.
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CMSEL
SMSEL
GND
X1
________________________________________________________________ Maxim Integrated Products
1
2
4
3
+
General Description
DS1080L
μSOP
Pin Configuration
Spread-Spectrum Crystal Multiplier
Applications
6
8
7
5
X2
V
SSO
PDN
CC
♦ Generates Spread-Spectrum Clocks from 16MHz
♦ Selectable Clock Multiplier Rates of 1x, 2x, and 4x
♦ Center Spread-Spectrum Dithering
♦ Selectable Spread-Spectrum Modulation
♦ Spread-Spectrum Disable Mode
♦ Low Cycle-to-Cycle Jitter
♦ Power-Down Mode with High-Impedance Output
♦ Low Cost
♦ Low Power Consumption
♦ 3.0V to 3.6V Single-Supply Operation
♦ -40°C to +125°C Temperature Operation
♦ Small 8-Lead µSOP Package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
DS1080LU+
to 134MHz
Magnitudes of ±0.5%, ±1.0%, and ±1.5%
PART
-40°C to +125°C
TEMP RANGE
Ordering Information
PIN-PACKAGE
Features
8 μSOP
1

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DS1080LU+ Summary of contents

Page 1

... Applications ♦ Low Cycle-to-Cycle Jitter ♦ Power-Down Mode with High-Impedance Output ♦ Low Cost ♦ Low Power Consumption ♦ 3.0V to 3.6V Single-Supply Operation ♦ -40°C to +125°C Temperature Operation ♦ Small 8-Lead µSOP Package PART DS1080LU+ + Denotes a lead(Pb)-free/RoHS-compliant package SSO ...

Page 2

Spread-Spectrum Crystal Multiplier ABSOLUTE MAXIMUM RATINGS Voltage on V Relative to GND .........................-0.5V to +3.63V CC Voltage on Any Lead Relative to GND ...............-0. 0.5V), not to exceed +3.63V CC Stresses beyond those listed under “Absolute Maximum ...

Page 3

Spread-Spectrum Crystal Multiplier AC ELECTRICAL CHARACTERISTICS (V = +3.0 to +3.6V -40°C to +125°C PARAMETER SYMBOL SSO Duty Cycle SSODC Rise Time t R Fall Time t F Peak Cycle-to-Cycle Jitter t J Power-Up Time t ...

Page 4

Spread-Spectrum Crystal Multiplier (V = 3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 12 AT 16MHz CMSEL = 4x AT 16MHz 10 CMSEL = 2x AT 16MHz 8 6 CMSEL = 1x AT 16MHz ...

Page 5

Spread-Spectrum Crystal Multiplier PIN NAME Crystal Drive/Clock Input. A crystal with the proper loading capacitors is connected across X1 and X2 Instead of a crystal, a clock can be applied at the X1 input. 2 GND Signal Ground ...

Page 6

Spread-Spectrum Crystal Multiplier Detailed Description The DS1080L is a crystal multiplier with center spread- spectrum capability. A 16MHz to 33.4MHz crystal is connected to the X1 and X2 pins. Alternately, a 16MHz to 33.4MHz clock can be applied to X1 ...

Page 7

Spread-Spectrum Crystal Multiplier C L1 NOTE: IN THE ABOVE CONFIGURATION WITH PDN CONNECTED TO V AND CMSEL FLOATING, THE DEVICE IS IN NORMAL OPERATION WITH 2x CLOCK MULTIPLICATION, AND SPREAD-SPECTRUM MAGNITUDE OF ±0.5%. Layout Considerations As noted earlier, the crystal ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION from 0 ...

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