DS1089L 3.3V Center Spread-Spectrum EconOscillator General Description Features The DS1089L is a clock generator that produces a Factory-Programmed Square-Wave Generator from spread-spectrum (dithered) square-wave output of fre- 33.3MHz to 66.6MHz quencies from 130kHz to 66.6MHz. The DS1089L is Center Frequency Remains Constant Independent of shipped from the factory programmed at a specific Dither Percentage frequency. The DS1089L is pin-for-pin compatible with No External Timing Components Required the DS1087L, however, the DS1089L dithers at equal percentages above and below the center frequency. The EMI Reduction user still has access to the internal frequency divider, Variable Dither Frequency selectable 1%, 2%, 4%, or 8% dithered output, dith- User Programmable Down to 130kHz with Divider ering rate, and programmable output power-down/disable (Dependent on Master Oscillator Frequency) 2 mode through an I C-compatible programming interface. 1%, 2%, 4%, or 8% Selectable Dithered Output All the device settings are stored in nonvolatile (NV) EEPROM allowing it to operate in stand-alone applica- Glitchless Output-Enable Control tions. The DS1089L also has power-down and output-en- 2 I C-Compatible Serial Interface able control pins for power-sensitive applications. Nonvolatile Settings Applications Power-Down Mode Printers Programmable Output Power-Down/Disable Mode Copiers Computer Peripherals POS Terminals Ordering Information Cable Modems PART TEMP RANGE PIN-PACKAGE DS1089LU-yxx* -40C to +85C 8 SOP (118 mil) Pin Configuration and Typical Operating Circuits appear at *See Standard Frequency Options Table. end of data sheet. Standard Frequency Options PART FREQUENCY (MHz) SPREAD (%) DITHER FREQUENCY DS1089LU-21G 14.7456 1 f /4096 MOSC DS1089LU-4CL 18.432 2 f /4096 MOSC DS1089LU-22F 24.576 1 f /2048 MOSC DS1089LU-23C 33.3 1 f /4096 MOSC DS1089LU-450 50.0 2 f /4096 MOSC DS1089LU-866 66.6 4 f /4096 MOSC DS1089LU-yxx Fixed up to 66.6 1, 2, 4, or 8 f /2048 or 4096 or 8192 MOSC Add /T for Tape and Reel. Custom frequencies available, contact factory. EconOscillator is a trademark of Maxim Integrated Products, Inc. 19-7501 Rev 3 2/15DS1089L 3.3V Center Spread-Spectrum EconOscillator Absolute Maximum Ratings Voltage on VCC Relative to Ground ....................-0.5V to +6.0V Programming Temperature Range .........................0C to +70C Voltage on SPRD, PDN, OE, SDA, Storage Temperature Range ............................ -55C to +125C SCL Relative to Ground* ...................... -0.5V to (V + 0.5V) Soldering Temperature .................See IPC/JEDEC J-STD-020A CC Operating Temperature Range ........................... -40C to +85C *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 Operating Conditions (T = -40C to +85C.) A PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS Supply Voltage V (Note 1) 2.7 3.3 3.6 V CC High-Level Input Voltage V + CC V 0.7 x V V IH CC 0.3 (SDA, SCL, SPRD, PDN, OE) Low-Level Input Voltage 0.3 x V -0.3 V IL V (SDA, SCL, SPRD, PDN, OE) CC DC Electrical Characteristics (V = +2.7V to +3.6V, T = -40C to +85C.) CC A PARAMETER SYMBOL CONDITION 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 V 3mA sink current 0.4 OL1 Low-Level Output Voltage (SDA) V V 6mA sink current 0.6 OL2 High-Level Input Current I V = V 1 A IH IH CC Low-Level Input Current I V = 0V -1 A IL IL Supply Current (Active) I C = 15pF, f = f 12 mA CC L OUT MOSCmax Standby Current (Power-Down) I Power-down mode 10 A CCQ Maxim Integrated 2 www.maximintegrated.com