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Dallas Semiconductor
Dallas Semiconductor

DS1086L Datasheet Preview

DS1086L Datasheet

Spread-Spectrum EconOscillator

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DS1086L pdf
Rev 0; 11/03
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
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Features
User-Programmable Square-Wave Generator
Frequencies Programmable from 130kHz to
66.6MHz
0.5%, 1%, 2%, 4%, or 8% Selectable Dithered
Output
Adjustable Dither Rate
Glitchless Output-Enable Control
2-Wire Serial Interface
Nonvolatile Settings
2.7V to 3.6V Supply
No External Timing Components Required
Power-Down Mode
5kHz Master Frequency Step Size
EMI Reduction
Industrial Temperature Range: -40°C to +85°C
Ordering Information
PART
DS1086LU
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
8 µSOP (118 mil)
Typical Operating Circuit
DITHERED 130kHz TO
µP 66.6MHz OUTPUT
VCC
XTL1/OSC1
XTL2/OSC2
VCC OUT
N.C. SPRD
VCC
GND
DS1086L
SCL*
SDA*
PDN
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
Pin Configuration
OUT 1
SPRD 2
VCC 3
GND 4
DS1086L
8 SCL
7 SDA
6 PDN
5 OE
µSOP
EconOscillator is a trademark of Dallas Semiconductor.
______________________________________________ Maxim Integrated Products 1
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.



Dallas Semiconductor
Dallas Semiconductor

DS1086L Datasheet Preview

DS1086L Datasheet

Spread-Spectrum EconOscillator

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DS1086L pdf
3.3V Spread-Spectrum EconOscillator
ABSOLUTE MAXIMUM RATINGS
Voltage Range on VCC Relative to Ground ..........-0.5V to +6.0V
Voltage Range on SPRD, PDN, OE, SDA, and SCL
Relative to Ground* ..................................-0.5 to (VCC + 0.5V)
Operating Temperature Range ...........................-40°C to +85°C
Programming Temperature Range .........................0°C to +70°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature ..................See IPC/JEDEC J-STD-020A
*This voltage must not exceed 6.0V.
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.
RECOMMENDED DC OPERATING CONDITIONS
(VCC = 2.7V to 3.6V, TA = -40°C to +85°C.)
PARAMETER
Supply Voltage
High-Level Input Voltage
(SDA, SCL, SPRD, PDN, OE)
SYMBOL
VCC (Note 1)
VIH
CONDITIONS
Low-Level Input Voltage
(SDA, SCL SPRD, PDN, OE)
VIL
MIN
2.7
0.7 x
VCC
-0.3
TYP
3.3
MAX
3.6
VCC +
0.3
0.3 x
VCC
UNITS
V
V
V
DC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 3.6V, TA = -40°C to +85°C.)
PARAMETER
High-Level Output Voltage (OUT)
Low-Level Output Voltage (OUT)
Low-Level Output Voltage (SDA)
High-Level Input Current
Low-Level Input Current
Supply Current (Active)
Standby Current (Power-Down)
SYMBOL
VOH
VOL
VOL1
VOL2
IIH
IIL
ICC
ICCQ
CONDITIONS
IOH = -4mA, VCC = min
IOL = 4mA
3mA sink current
6mA sink current
VCC = 3.6V
VIL = 0
CL = 15pF (output at default frequency)
Power-down mode
MIN TYP MAX UNITS
2.4 V
0 0.4 V
0 0.4
V
0 0.6
1 µA
-1 µA
10 mA
10 µA
2 _____________________________________________________________________


Part Number DS1086L
Description Spread-Spectrum EconOscillator
Maker Dallas Semiconductor
Total Page 16 Pages
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