DS1086L Spread-Spectrum EconOscillator Datasheet

DS1086L Datasheet, PDF, Equivalent


Part Number

DS1086L

Description

3.3V Spread-Spectrum EconOscillator

Manufacture

Maxim Integrated

Total Page 17 Pages
Datasheet
Download DS1086L Datasheet


DS1086L
DS1086L
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
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
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
μP 66.6MHz OUTPUT
VCC
XTL1/OSC1
VCC OUT
SCL*
XTL2/OSC2 N.C.
SPRD DS1086L SDA*
VCC 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.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6226; Rev 2; 3/12

DS1086L
DS1086L
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)
Continuous Power Dissipation (TA = +70°C)
μSOP (derate 4.5mW/°C above +70°C)........................362mW
Operating Temperature Range ...........................-40°C to +85°C
*This voltage must not exceed 6.0V.
Programming Temperature Range .........................0°C to +70°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-55°C to +150°C
Soldering Temperature (reflow)
Lead(Pb)-free................................................................+260°C
Containing lead(Pb) ......................................................+240°C
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)
Low-Level Input Voltage
(SDA, SCL SPRD, PDN, OE)
SYMBOL
VCC (Note 1)
VIH
VIL
CONDITIONS
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 = 0V
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 Maxim Integrated


Features DS1086L 3.3V Spread-Spectrum EconOscilla tor General Description The DS1086L Ec onOscillator™ 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 th e frequency 0.5%,1%, 2%, 4%, or 8% belo w the programmed frequency. The DS1086L has a power-down mode and an output-en able control for power-sensitive applic ations. All the device settings are sto red in nonvolatile (NV) EEPROM memory a llowing it to operate in stand-alone ap plications. Applications Printers Copie rs PCs Computer Peripherals Cell Phones Cable Modems Typical Operating Circuit Features ♦ User-Programmable Square -Wave Generator ♦ Frequencies Program mable from 130kHz to 66.6MHz ♦ 0.5%, 1%, 2%, 4%, or 8% Selectable Dithered O utput ♦ Adjustable Dither Rate ♦ Gl itchless Output-Enable Control ♦ 2-Wi re Serial Interface ♦ Nonvolatile Settings ♦ 2.7V to 3.6V Supply ♦ No Externa.
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