DS1088L General Description The DS1088L is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in factory-calibrated frequencies from 312kHz to 133MHz. The device has a power-down pin for power-sensitive applications. Applications Printers Copiers Computer Peripherals POS Terminals Cable Modems Ordering Information appears at end of data sheet. Fixed-Frequency EconOscillatorTM Features Factory-Programmed Square-Wave Generator from 321kHz to 133MHz Single Output No External Timing Components Required 2.7V to 3.6V Supply Power-Down Mode 1% Frequency Tolerance Over Temperature and Voltage Wide Temperature Range (-20C to +85C) Typical Operating Circuit 312kHz TO 133MHz OUTPUT OUT DNC DS1088L VCC VCC DNC VCC PDN GND GND DECOUPLING CAPACITORS (0.1F AND 0.01F) EconOscillator is a trademark of Maxim Integrated Products, Inc. For related parts and recommended products to use with this part, refer to www.maximintegrated.com/DS1088L.related. 19-6184; Rev 3; 4/15 VCC DS1088L Fixed-Frequency EconOscillatorTM Absolute Maximum Ratings (Voltages relative to ground.) Voltage Range on VCC..........................................-0.5V to +6.0V Voltage Range on PDN............................-0.5V to (VCC + 0.5V)* Operating Temperature Range............................ -20C to +85C Storage Temperature Range............................. -55C to +125C Lead Temperature (soldering, 10s).................................. +300C Soldering Temperature (reflow)........................................+260C *Not to 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 (TA = -20C to +85C, unless otherwise noted.) PARAMETER SYMBOL Supply Voltage VCC High-Level Input Voltage (PDN) VIH Low-Level Input Voltage (PDN) VIL CONDITIONS (Note 1) MIN TYP 2.7 0.7 x VCC -0.3 MAX UNITS 3.6 V VCC + 0.3 V 0.3 x VCC V DC Electrical Characteristics (VCC = 2.7V to 3.6V, TA = -20C to +85C, unless otherwise noted.) PARAMETER SYMBOL High-Level Output Voltage (OUT) VOH IOH = -4mA, VCC = MIN Low-Level Output Voltage (OUT) VOL IOL = 4mA 0.4 V High-Level Input Current (PDN) IIH VCC = 3.6V 1 A Low-Level Input Current (PDN) IIL VIL = 0V Supply Current (Active) ICC VCC = 3.6V, CL = 15pF, fO = 133MHz Standby Current (Power-Down) www.maximintegrated.com ICCQ CONDITIONS Power-down mode MIN TYP MAX VCC - 0.4 UNITS V -1 A 15 24 mA 10 A Maxim Integrated 2 DS1088L Fixed-Frequency EconOscillatorTM Oscillator Characteristics (VCC = 2.7V to 3.6V, TA = -20C to +85C, unless otherwise noted.) PARAMETER Output Frequency Range Available SYMBOL CONDITIONS fO MIN TYP MAX UNITS 0.3124 133.3 MHz Output Frequency Tolerance f O fO VCC = 3.3V, TA = +25C (Note 2) -0.3 +0.3 % Voltage Frequency Variation f V fO Over voltage range, TA = +25C (Note 3) -0.35 +0.35 % Temperature Frequency Variation f T fO Over temperature range, VCC = 3.3V (Notes 4, 5) -20C to +25C -0.7 +0.7 +25C to +85C -0.5 +0.5 -1.0 +1.0 % MAX UNITS Frequency Variation Over Voltage and Temperature f V,T fO Over voltage and temperature range % AC Electrical Characteristics (VCC = 2.7V to 3.6V, TA = -20C to +85C, unless otherwise noted.) PARAMETER Power-Up Time OUT Disabled After Entering Power-Down Mode Load Capacitance Output Duty Cycle (OUT) SYMBOL CONDITIONS MIN TYP tPOR + tSTAB (Note 6) 100 s tPDN (Note 7) 7 s CL (Note 8) 50 pF 60 % fO < 80MHz, fO 80MHz fO < 80MHz 15 40 50 Note 1: All voltages are referenced to ground. Note 2: Typical frequency shift due to aging is within 0.2%. Aging stressing includes level 1 moisture reflow preconditioning (24hr +125C bake, 168hr +85C/85%RH moisture soak, and three solder reflow passes +240C +0C/-5C peak) followed by1000hr (max) VCC biased +125C OP/L, 1000hr unbiased +150C bake, 1000 temperature cycles at -55C to +125C, and 168hr +121C/2 ATM steam/unbiased autoclave. Note 3: This is the change in output frequency due to changes in voltage at TA = +25C. Note 4: Guaranteed by design. Note 5: This is the change in output frequency due to changes in temperature from the +25C frequency at VCC = 3.3V. Note 6: This indicates the time elapsed between power-up and the output becoming active. An on-chip delay is intentionally introduced to allow the oscillator to stabilize. tSTAB is equivalent to approximately 512 clock cycles and will depend on the programmed oscillator frequency. Note 7: Output disabled in two cycles or less of the output frequency. Note 8: Output voltage swings may be impaired at high frequencies combined with high-output loading. www.maximintegrated.com Maxim Integrated 3 DS1088L Fixed-Frequency EconOscillatorTM Typical Operating Characteristics (VCC = 3.3V, TA = +25C, unless otherwise noted.) 6 100MHz 4 3 5 30 133MHz 6 100MHz 5 4 80MHz -20 55 3 80 2.9 2.7 DS1088L toc04 2.2 2.1 2.0 1.9 1.8 0.15 1.7 55 30 3.3 0.10 9 2.9 2.7 -0.05 80MHz -0.10 -0.20 80 2.9 3.1 0.3 DS1088L toc03 3.5 VCC = 3.3V 0.2 100MHz 0.1 133MHz 0 80MHz -0.1 100MHz -0.2 80MHz -0.3 TA = +25C CL || RL = 1.8pF || 500 2.7 3.3 3.1 FREQUENCY ERROR vs. TEMPERATURE 133MHz 0 3.3 -0.4 3.5 TA = +25C CL || RL = 1.8pF || 500 -20 55 30 5 SUPPLY VOLTAGE (V) 80 TEMPERATURE (C) DUTY CYCLE vs. TEMPERATURE 56 DS1088L toc07 133MHz 55 VCC = 3.3V 133MHz 55 54 54 53 DUTY CYCLE (%) DUTY CYCLE (%) 80MHz SUPPLY VOLTAGE (V) DUTY CYCLE vs. SUPPLY VOLTAGE 100MHz 52 51 TA = +25C CL || RL = 1.8pF || 500 2.7 www.maximintegrated.com 53 52 100MHz 51 50 80MHz 50 49 100MHz 8 6 0.05 TEMPERATURE (C) 56 133MHz 10 3.5 100MHz -0.15 1.6 5 11 7 0.20 FREQUENCY ERROR (%) SHUTDOWN CURRENT (A) VPDN = 0V 2.3 -20 12 FREQUENCY ERROR vs. SUPPLY VOLTAGE 2.5 1.5 13 SUPPLY VOLTAGE (V) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 2.4 3.1 CL = 15pF TA = +25C 14 80MHz TEMPERATURE (C) VCC = 3.3V DS1088L toc02 8 7 15 FREQUENCY ERROR (%) 5 9 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE DS1088L toc08 133MHz CL = 1.8pF TA = +25C SUPPLY CURRENT (mA) 8 7 10 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 9 CL = 1.8pF DS1088L toc05 VCC = 3.3V DS1088L toc01 10 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE DS1088L toc06 ACTIVE SUPPLY CURRENT vs. TEMPERATURE 3.1 3.3 2.9 SUPPLY VOLTAGE (V) 80MHz 49 3.5 48 TA = +25C CL || RL = 1.8pF || 500W -20 5 30 55 80 TEMPERATURE (C) Maxim Integrated 4 DS1088L Fixed-Frequency EconOscillatorTM Pin Configuration TOP VIEW OUT 1 + 8 DNC 7 DNC 3 6 PDN GND 4 5 GND VCC 2 VCC DS1088L SOP Pin Description PIN NAME 1 OUT Oscillator Output 2, 3 VCC Power Supply 4, 5 GND Ground 6 PDN Active-Low Power-Down. When the pin is high, the oscillator is enabled. When the pin is low, the oscillator is disabled (power-down mode). 7 DNC Do Not Connect. The DNC pins are internally connected to ground. 8 DNC Do Not Connect www.maximintegrated.com FUNCTION Maxim Integrated 5 DS1088L Fixed-Frequency EconOscillatorTM Detailed Description The DS1088L is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in factory-calibrated frequencies from 312kHz to 133MHz. The device has a power-down pin for power-sensitive applications. A block diagram is shown in Figure 1. Output Frequency The internal oscillator frequency is divided by the factoryprogrammed prescaler to produce an output frequency of 312kHz to 133MHz. Contact the factory for custom frequencies. Power-Down Mode Applications Information Power-Supply Decoupling To achieve the best results when using the DS1088L, the power supply must be decoupled with 0.01F and 0.1F high-quality, ceramic, surface-mount capacitors. Surfacemount components minimize lead inductance, which improves performance, and tend to have adequate highfrequency response for decoupling applications. These capacitors should be placed as close as possible to the VCC and GND pins. Chip Information SUBSTRATE CONNECTED TO GROUND The PDN pin disables the internal oscillator and the oscillator output for power-sensitive applications. The powerdown pin must remain low for at least two output frequency cycles plus 10s for deglitching purposes. On power-up, the output is disabled until power is stable and the voltagecontrolled oscillator has generated 512 clock cycles. VCC PDN VCC EEPROM CONTROL VOLTAGECONTROLLED OSCILLATOR 80MHz TO 160MHz GND PRESCALER / BY 1, 2, 4...256 OUT (312kHz TO 133MHz) DS1088L Figure 1. Block Diagram www.maximintegrated.com Maxim Integrated 6 DS1088L Fixed-Frequency EconOscillatorTM Ordering Information FREQUENCY (MHz) TEMP RANGE PIN-PACKAGE DS1088LU-02+ PART 2.048 -20C to +85C 8 SOP DS1088LU-10+ 10.0 -20C to +85C 8 SOP DS1088LU-16+ 16.6 -20C to +85C 8 SOP DS1088LU-66+ 66.6 -20C to +85C 8 SOP DS1088LU-100+ 100.0 -20C to +85C 8 SOP DS1088LU-yyy+ (see note) -20C to +85C 8 SOP Note: For more information about custom frequencies, email Custom_EconOscillators_Info@maximintegrated.com. +Denotes a lead(Pb)-free/RoHS-compliant package. yyy = frequency Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 SOP U8+1 21-0036 90-0092 www.maximintegrated.com Maxim Integrated 7 DS1088L Fixed-Frequency EconOscillatorTM Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 10/04 Initial release -- 1 5/05 Updated the Oscillator Characteristics table and added Note 8 3 2 1/12 Added lead(Pb)-free ordering option to the Ordering Information table; added the lead and soldering temperature information to the Absolute Maximum Ratings section 3 4/15 Removed automotive reference from data sheet DESCRIPTION 1, 2 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated's website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. (c) 2015 Maxim Integrated Products, Inc. 8 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: DS1088LU-02+ DS1088LU-02+T DS1088LU-02A+ DS1088LU-02A+T DS1088LU-10+ DS1088LU-10+T DS1088LU-100+ DS1088LU-100+T DS1088LU-16+ DS1088LU-16+T DS1088LU-24+ DS1088LU-24+T DS1088LU27+ DS1088LU-27+T DS1088LU-333+ DS1088LU-333+T DS1088LU-50+ DS1088LU-50+T DS1088LU-66+ DS1088LU-66+T DS1088LU-737+ DS1088LU-737+T DS1088L DS1088EN-133+T DS1088LU-02A+W