ds1086lut Maxim Integrated Products, Inc., ds1086lut Datasheet

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Rev 1; 9/07 3.3V Spread-Spectrum EconOscillator General Description The DS1086L EconOscillator™ 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 ...

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Spread-Spectrum EconOscillator ABSOLUTE MAXIMUM RATINGS Voltage Range on V Relative to Ground ..........-0.5V to +6.0V CC Voltage Range on SPRD, PDN, OE, SDA, and SCL Relative to Ground* ..................................-0 This voltage must not exceed 6.0V. Stresses ...

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Spread-Spectrum EconOscillator MASTER OSCILLATOR CHARACTERISTICS (V = 2.7V to 3.6V -40°C to +85°C PARAMETER SYMBOL Master Oscillator Frequency Default Master Oscillator Frequency Master Oscillator Frequency Tolerance Voltage Frequency Variation Temperature Frequency Variation Dither Frequency Range ...

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Spread-Spectrum EconOscillator AC ELECTRICAL CHARACTERISTICS (V = 2.7V to 3.6V -40°C to +85°C PARAMETER SYMBOL Frequency Stable After Prescaler Change Frequency Stable After DAC or t DACstab Offset Change Power-Up Time t por Enable of ...

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Spread-Spectrum EconOscillator AC ELECTRICAL CHARACTERISTICS—2-WIRE INTERFACE (continued 2.7V to 3.6V -40°C to +85°C PARAMETER SYMBOL Setup Time for STOP t SU:STO Capacitive Load for Each Bus Line EEPROM Write Cycle Time Input Capacitance ...

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Spread-Spectrum EconOscillator (V = 3.3V 25°C, unless otherwise noted SUPPLY CURRENT vs. MASTER OSCILLATOR FREQUENCY 9 8 15pF LOAD 4.7pF LOAD 3 2 PRESCALER = ...

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Spread-Spectrum EconOscillator (V = 3.3V 25°C, unless otherwise noted POWER-DOWN CURRENT vs. SUPPLY VOLTAGE 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 2.7 3.0 SUPPLY VOLTAGE (V) SUPPLY CURRENT WITH OUTPUT DISABLED vs. SUPPLY ...

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Spread-Spectrum EconOscillator PIN NAME 1 OUT Oscillator Output. The output frequency is determined by the OFFSET, DAC, and prescaler registers. 2 SPRD Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the ...

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Spread-Spectrum EconOscillator SDA SCL PDN OE SPRD GND Figure 3. Block Diagram Detailed Description A block diagram of the DS1086L is shown in Figure 3. The internal master oscillator generates a square wave with a ...

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Spread-Spectrum EconOscillator Table 1. Register Summary REGISTER ADDR MSB PRESCALER 02h JS4 JS3 PRESCALER — DAC (MSB) 08h b9 b8 DAC (LSB) — OFFSET 0Eh ADDR 0Dh ...

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Spread-Spectrum EconOscillator JS2 to JS0: Jitter Percentage. These three bits select the amount of jitter in percent. The SPRD pin must be a logic high for the jitter to be enabled. Bit combinations not shown are reserved. JS2 JS1 ...

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Spread-Spectrum EconOscillator Example Frequency Calculations Example #1: Calculate the register values needed to generate a desired output frequency of 11.0592MHz. Since the desired frequency is not within the valid mas- ter oscillator range of 33.3MHz to 66.6MHz, the prescaler ...

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Spread-Spectrum EconOscillator SDA MSB SLAVE ADDRESS SCL 1 2 START CONDITION Figure 4. 2-Wire Data Transfer Protocol The expected output frequency is not exactly equal to the desired frequency of 11.0592MHz. The difference is 450Hz. In terms of percentage, ...

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Spread-Spectrum EconOscillator MSB DEVICE IDENTIFIER ADDRESS Figure 5. Slave Address SDA t BUF t LOW SCL t HD:STA STOP START Figure 6. 2-Wire AC Characteristics _______2-Wire Serial Port Operation 2-Wire Serial Data Bus The ...

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Spread-Spectrum EconOscillator ditions is not limited, and is determined by the master device. The information is transferred byte-wise and each receiver acknowledges with a ninth bit. Within the bus specifications a standard mode (100kHz clock rate) and a fast ...

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... ACK B1h 08h SLAVE SLAVE REPEATED ACK ACK START For the latest package outline information www.maxim-ic.com/DallasPackInfo registered trademark of Maxim Integrated Products, Inc. MSB LSB SLAVE STOP ...