DS1086 19-6224 Rev 2 3/12 Spread-Spectrum EconOscillator General Description Features The DS1086 EconOscillator is a programmable clock User-Programmable Square-Wave Generator generator that produces a spread-spectrum (dithered) Frequencies Programmable from 260kHz to square-wave output of frequencies from 260kHz to 133MHz 133MHz. The selectable dithered output reduces radi- ated-emission peaks by dithering the frequency 2% or 2% or 4% Selectable Dithered Output 4% below the programmed frequency. The DS1086 has Glitchless Output-Enable Control a power-down mode and an output-enable control for power-sensitive applications. All the device settings are 2-Wire Serial Interface stored in nonvolatile (NV) EEPROM memory allowing it Nonvolatile Settings to operate in stand-alone applications. 5V Supply Applications No External Timing Components Required Printers Power-Down Mode Copiers 10kHz Master Frequency Step Size PCs EMI Reduction Computer Peripherals Cell Phones Ordering Information Cable Modems PART TEMP RANGE PIN-PACKAGE DS1086U 0C to +70C 8 SOP DS1086U+ 0C to +70C 8 SOP DS1086Z 0C to +70C 8 SO DS1086Z+ 0C to +70C 8 SO Note: Contact the factory for custom settings. +Denotes a lead(Pb)-free/RoHS-compliant package. Typical Operating Circuit Pin Configuration TOP VIEW V CC DITHERED 260kHz TO MICRO- 133MHz OUTPUT PROCESSOR XTL1/OSC1 SCL* OUT V OUT 1 8 SCL CC SPRD SDA* XTL2/OSC2 N.C. DS1086 SPRD 2 7 SDA V PDN CC DS1086 GND OE V 3 6 PDN CC DECOUPLING CAPACITORS GND 4 5 OE (0.1F and 0.01F) *SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086 NEVER NEEDS SOP/SO TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING. 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 Maxims website at www.maxim-ic.com.Spread-Spectrum EconOscillator ABSOLUTE MAXIMUM RATINGS Voltage on V Relative to Ground ......................-0.5V to +6.0V Junction Temperature......................................................+150C CC Voltage on SPRD, PDN, OE, SDA, Operating Temperature Range...............................0C to +70C SCL Relative to Ground (See Note 1).......-0.5 to (V + 0.5V) Storage Temperature Range .............................-55C to +125C CC Continuous Power Dissipation (T = +70C) Soldering Temperature (reflow) A SOP (derate 4.5mW/C above +70C)........................362mW Lead(Pb)-free................................................................+260C SO (derate 5.9mW/C above +70C).........................470.6mW Containing lead(Pb) .....................................................+240C Note 1: 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 (V = 5V 5%, T = 0C to +70C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V (Note 1) 4.75 5.00 5.25 V CC High-Level Input Voltage 0.7 x V + CC V V IH (SDA, SCL) V 0.3 CC Low-Level Input Voltage 0.3 x V -0.3 V IL (SDA, SCL) V CC High-Level Input Voltage V + CC V 2 V IH (SPRD, PDN, OE) 0.3 Low-Level Input Voltage V -0.3 0.8 V IL (SPRD, PDN, OE) DC ELECTRICAL CHARACTERISTICS (V = 5V 5%, T = 0C to +70C.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS High-Level Output Voltage (OUT) V I = -4mA, V = min 2.4 V OH OH CC Low-Level Output Voltage (OUT) V I = 4mA 0.4 V OL OL High-Level Input Current I V = 5.25V 1 A IH CC Low-Level Input Current I V = 0V -1 A IL IL Supply Current (Active) I C = 15pF (output at default frequency) 35 mA CC L Standby Current (Power-Down) I Power-down mode 35 A CCQ 2 DS1086