DS1086L Просмотр технического описания (PDF) - Maxim Integrated
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DS1086L Datasheet PDF : 17 Pages
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19-6226; Rev 2; 3/12
3.3V Spread-Spectrum EconOscillator
General Description
The DS1086L EconOscillator™ is a 3.3V programmable
clock generator that produces a spread-spectrum
(dithered) square-wave output of frequencies from
130kHz to 66.6MHz. The selectable dithered output
reduces radiated-emission peaks by dithering the fre-
quency 0.5%,1%, 2%, 4%, or 8% below the pro-
grammed frequency. The DS1086L has a power-down
mode and an output-enable control for power-sensitive
applications. All the device settings are stored in non-
volatile (NV) EEPROM memory allowing it to operate in
stand-alone applications.
Applications
Printers
Copiers
PCs
Computer Peripherals
Cell Phones
Cable Modems
Typical Operating Circuit
Features
o User-Programmable Square-Wave Generator
o Frequencies Programmable from 130kHz to
66.6MHz
o 0.5%, 1%, 2%, 4%, or 8% Selectable Dithered
Output
o Adjustable Dither Rate
o Glitchless Output-Enable Control
o 2-Wire Serial Interface
o Nonvolatile Settings
o 2.7V to 3.6V Supply
o No External Timing Components Required
o Power-Down Mode
o 5kHz Master Frequency Step Size
o EMI Reduction
o Industrial Temperature Range: -40°C to +85°C
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS1086LU
-40°C to +85°C
8 µSOP (118 mils)
DS1086LU+
-40°C to +85°C
8 µSOP (118 mils)
Note: Contact the factory for custom settings.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration
DITHERED 130kHz TO
VCC
µP
66.6MHz OUTPUT
XTL1/OSC1
VCC OUT
SCL*
XTL2/OSC2 N.C.
SPRD
SDA*
VCC
DS1086L PDN
GND
OE
DECOUPLING CAPACITORS
(0.1µF and 0.01µF)
*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086L NEVER NEEDS
TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.
TOP VIEW
OUT 1
SPRD 2
VCC 3
GND 4
DS1086L
8 SCL
7 SDA
6 PDN
5 OE
µSOP
EconOscillator is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ 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.
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