DS1088CN-133+T

DS1088C General Description The DS1088C is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in a factory-calibrated frequency of 133MHz. The device has a power-down pin for power-sensitive applications. Applications ●● ●● ●● ●● ●● Printers Copiers Computer Peripherals POS Terminals Cable Modems Fixed-Frequency EconOscillator™ Features ●● Factory-Programmed, 133MHz Square-Wave Generator ●● Single Output ●● No External Timing Components Required ●● 2.7V to 3.6V Supply ●● Power-Down Mode ●● Wide Temperature Range (-20°C to +85°C) Typical Operating Circuit 133MHz OUTPUT OUT DNC DS1088C Ordering Information appears at end of data sheet. VCC VCC DNC VCC PDN GND GND DECOUPLING CAPACITORS (0.1µF AND 0.01µF) 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/DS1088C.related. 19-6186; Rev 1; 4/15 VCC DS1088C Fixed-Frequency EconOscillator™ 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........................... -20°C to +85°C Storage Temperature Range............................. -55°C to +125°C Lead Temperature (TDFN only; soldering, 10s)..............+300°C Soldering Temperature (reflow).......................................+260°C *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 = -20°C to +85°C, 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 = -20°C to +85°C, 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 µA Low-Level Input Current (PDN) IIL VIL = 0V ICC VCC = 3.6V, CL = 15pF, fO = 133MHz Supply Current (Active) Standby Current (Power-Down) ICCQ CONDITIONS MIN TYP MAX VCC 0.4 UNITS V -1 µA 15 Power-down mode 24 mA 10 µA MAX UNITS Oscillator Characteristics—TDFN (VCC = 2.7V to 3.6V, TA = -20°C to +85°C, unless otherwise noted.) PARAMETER Output Frequency Range Available SYMBOL CONDITIONS MIN fO TYP 133.3 MHz Output Frequency Tolerance ∆f O fO VCC = 3.3V, TA = +25°C (Note 2) -0.3 +0.3 % Voltage Frequency Variation ∆f V fO Over voltage range, TA = +25°C (Note 3) -0.35 +0.35 % Temperature Frequency Variation ∆f T fO Over temperature range, VCC = 3.3V (Notes 4, 5) -20°C to +25°C -0.7 +0.7 +25°C to +85°C -0.5 +0.5 -1.0 +1.0 Frequency Variation Over Voltage and Temperature www.maximintegrated.com ∆f V,T fO Over voltage and temperature range % % Maxim Integrated │  2 DS1088C Fixed-Frequency EconOscillator™ Oscillator Characteristics—WLP (VCC = 2.7V to 3.6V, TA = -20°C to +85°C, unless otherwise noted.) PARAMETER Output Frequency SYMBOL CONDITIONS MIN fO TYP MAX 133.3 Output Frequency Tolerance ∆f O fO VCC = 3.3V, TA = +25°C (Note 2) Voltage Frequency Variation ∆f V fO Over voltage range, TA = +25°C (Note 3) Temperature Frequency Variation ∆f T fO Over temperature range, VCC = +3.3V (Notes 4, 5) Frequency Variation Over Voltage and Temperature ∆f T fO Over voltage and temperature range UNITS MHz -3 +3 % -3.5 +3.5 % -20°C to +25°C -7 +7 +25°C to +85°C -5 +5 -10 +10 % MAX UNITS % AC Electrical Characteristics (VCC = 2.7V to 3.6V, TA = -20°C to +85°C, 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 µs tPDN (Note 7) 7 µs CL (Note 8) 50 pF 60 % 15 40 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 +125°C bake, 168hr +85°C/85%RH moisture soak, and three solder reflow passes +240°C +0°C/-5°C peak) followed by1000hr (max) VCC biased +125°C OP/L, 1000hr unbiased +150°C bake, 1000 temperature cycles at -55°C to +125°C and 168hr +121°C/2 ATM steam/unbiased autoclave. Note 3: This is the change in output frequency due to changes in voltage at TA = +25°C. Note 4: Guaranteed by design. Note 5: This is the change in output frequency due to changes in temperature from the +25°C 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 DS1088C Fixed-Frequency EconOscillator™ Typical Operating Characteristics (VCC = 3.3V, TA = +25°C, unless otherwise noted.) 10 5 6 5 5 -20 30 55 3 80 2.9 2.7 10 9 8 2.2 2.1 2.0 1.9 1.8 0.15 1.7 0.10 0.05 0 -0.05 -0.10 -0.15 1.6 5 30 55 80 -0.20 0.3 TEMPERATURE (°C) 2.9 3.1 0.1 0 -0.1 -0.2 3.3 -0.4 3.5 -20 55 30 5 80 TEMPERATURE (°C) DUTY CYCLE vs. TEMPERATURE 56 DS1088C toc07 56 55 VCC = 3.3V 55 54 54 DUTY CYCLE (%) DUTY CYCLE (%) TA = +25°C CL || RL = 1.8pF || 500Ω SUPPLY VOLTAGE (V) DUTY CYCLE vs. SUPPLY VOLTAGE 53 52 51 53 52 51 50 50 49 3.5 VCC = 3.3V 0.2 -0.3 TA = +25°C CL || RL = 1.8pF || 500Ω 2.7 3.3 3.1 FREQUENCY ERROR vs. TEMPERATURE 0.20 FREQUENCY ERROR (%) 2.3 -20 2.9 2.7 SUPPLY VOLTAGE (V) FREQUENCY ERROR (%) 2.4 6 3.5 DS1088C toc05 VPDN = 0V VCC = 3.3V 3.3 FREQUENCY ERROR vs. SUPPLY VOLTAGE DS1088C toc04 2.5 3.1 SUPPLY VOLTAGE (V) SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE SHUTDOWN CURRENT (µA) 11 7 TEMPERATURE (°C) 1.5 12 4 4 3 13 DS1088E toc06 6 7 CL = 15pF TA = +25°C 14 DS1088C toc08 7 8 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE 15 SUPPLY CURRENT (mA) 8 CL = 1.8pF TA = +25°C 9 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 9 CL = 1.8pF DS1088C toc02 VCC = 3.3V DS1088C toc01 10 ACTIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE DS1088C toc03 ACTIVE SUPPLY CURRENT vs. TEMPERATURE TA = +25°C CL || RL = 1.8pF || 500Ω 2.7 www.maximintegrated.com 3.1 3.3 2.9 SUPPLY VOLTAGE (V) 3.5 49 48 TA = +25°C CL || RL = 1.8pF || 500Ω -20 5 30 55 80 TEMPERATURE (°C) Maxim Integrated │  4 DS1088C Fixed-Frequency EconOscillator™ Pin/Bump Configurations TOP VIEW DNC DNC PDN GND 8 7 6 5 DS1088C TOP VIEW 1 2 A OUT GND B VCC PDN + DS1088C EP + 1 2 3 4 OUT VCC VCC GND WLP TDFN (3mm x 3mm) Pin/Bump Descriptions PIN/BUMP TDFN-EP WLP NAME FUNCTION 1 A1 OUT Oscillator Output 2, 3 B1 VCC Power Supply 4, 5 A2 GND Ground 6 B2 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, 8 — DNC Do Not Connect. The DNC pins are internally connected to ground. — — EP www.maximintegrated.com Exposed Pad (TDFN Only). Internally connected to GND. Connect to the ground plane to minimize noise injection. Not intended for use as the device electrical ground. Maxim Integrated │  5 DS1088C Fixed-Frequency EconOscillator™ Detailed Description The DS1088C is a low-cost clock generator that produces a square-wave output without external timing components. The fixed-frequency oscillator is available in a factory-calibrated frequency of 133MHz. The DS1088C has a power-down pin for power-sensitive applications. A block diagram of the DS1088C is shown in Figure 1. Output Frequency The internal oscillator frequency is divided by the factoryprogrammed prescaler to produce an output frequency of 133MHz. Power-Down Mode Applications Information Power-Supply Decoupling To achieve the best results when using the DS1088C, the power supply must be decoupled with 0.01μF and 0.1μF 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 10μs for deglitching purposes. On power-up, the output is disabled until power is stable and the voltagecontrolled oscillator has generated 512 clock cycles. VCC VCC EEPROM CONTROL PDN VOLTAGECONTROLLED OSCILLATOR 80MHz TO 160MHz PRESCALER ÷ BY 1, 2, 4...256 OUT 133MHz GND DS1088C Figure 1. Block Diagram www.maximintegrated.com Maxim Integrated │  6 DS1088C Fixed-Frequency EconOscillator™ Ordering Information FREQUENCY (MHz) TEMP RANGE PIN-PACKAGE DS1088CN-133+T PART 133.3 -20°C to +85°C 8 TDFN-EP* DS1088CX-133+T 133.3 -20°C to +85°C 4 WLP +Denotes lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad. 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 TDFN-EP T833+2 21-0137 90-0059 4 WLP W41D1+1 21-0455 Refer to Application Note 1891 www.maximintegrated.com Maxim Integrated │  7 DS1088C Fixed-Frequency EconOscillator™ Revision History REVISION NUMBER REVISION DATE 0 3/12 Initial release — 1 4/15 Removed automotive reference from data sheet 1 DESCRIPTION PAGES CHANGED 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. © 2015 Maxim Integrated Products, Inc. │  8