ds1086zt-r Maxim Integrated Products, Inc., ds1086zt-r Datasheet
ds1086zt-r
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ds1086zt-r Summary of contents
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Rev 1; 9/03 DS1086 Spread-Spectrum EconOscillator General Description The DS1086 EconOscillator™ programmable clock generator that produces a spread-spectrum (dithered) square-wave output of frequencies from 260kHz to 133MHz. The selectable dithered output reduces radi- ated-emission peaks by dithering the ...
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DS1086 Spread-Spectrum EconOscillator ABSOLUTE MAXIMUM RATINGS Voltage on V Relative to Ground ......................-0.5V to +6.0V CC Voltage on SPRD, PDN, OE, SDA, SCL Relative to Ground (See Note 1).......-0 Note 1: This voltage must not exceed 6.0V. Stresses ...
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DS1086 Spread-Spectrum EconOscillator MASTER OSCILLATOR CHARACTERISTICS ( ±5 0°C to +70°C PARAMETER SYMBOL Master Oscillator Range Default Master Oscillator Frequency Master Oscillator Frequency Tolerance Voltage Frequency Variation Temperature Frequency Variation Dither Frequency Range Integral ...
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DS1086 Spread-Spectrum EconOscillator AC ELECTRICAL CHARACTERISTICS ( ±5 0°C to +70°C PARAMETER SYMBOL Frequency Stable After Prescaler Change Frequency Stable After DAC or Offset Change Power-Up Time t por Enable of OUT After Exiting ...
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DS1086 Spread-Spectrum EconOscillator AC ELECTRICAL CHARACTERISTICS: 2-WIRE INTERFACE (continued ±5 0°C to +70°C PARAMETER SYMBOL Setup Time for STOP t Capacitive Load for Each Bus Line NV Write-Cycle Time Input Capacitance Note 1: ...
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DS1086 Spread-Spectrum EconOscillator (V = 5.0V unless otherwise noted) ° SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE (°C) ...
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DS1086 Spread-Spectrum EconOscillator PIN NAME 1 OUT Oscillator Output 2 SPRD Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled Power Supply CC 4 GND Ground Output ...
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DS1086 Spread-Spectrum EconOscillator Table 1. Register Summary REGISTER ADDR MSB PRESCALER 02h DAC HIGH 08h b9 b8 DAC LOW 09h b1 b0 OFFSET 0Eh ADDR 0Dh RANGE 37h ...
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DS1086 Spread-Spectrum EconOscillator V CC SDA SCL PDN OE SPRD GND Figure 3. DS1086 Block Diagram The output frequency is determined by the following equation: ( MIN FREQUENCY OF SELECTED OFFSET RANGE + × DAC VALUE f = ...
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DS1086 Spread-Spectrum EconOscillator The A0, A1, A2 bits determine the 2-wire slave address. The WC bit determines if the EEPROM written to after register contents have been changed (default), EEPROM is written automatically ...
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DS1086 Spread-Spectrum EconOscillator must be read from the RANGE register (last five bits). In this example, 12h (18 decimal) was read from the RANGE register for this case is 10h (16 deci- mal). This is the value ...
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DS1086 Spread-Spectrum EconOscillator MSB DEVICE DEVICE IDENTIFIER ADDRESS Figure 5. Slave Address SDA t BUF t LOW SCL t HD:STA STOP START Figure 6. 2-Wire AC Characteristics Since the expected output frequency is equal to ...
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DS1086 Spread-Spectrum EconOscillator Each data transfer is initiated with a START condition and terminated with a STOP condition. The number of data bytes transferred between START and STOP con- ditions is not limited, and is determined by the master device. ...
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DS1086 Spread-Spectrum EconOscillator TYPICAL 2-WIRE WRITE TRANSACTION MSB LSB START A2* A1* A0* R/W DEVICE READ/ DEVICE IDENTIFIER ADDRESS WRITE EXAMPLE 2-WIRE TRANSACTIONS (WHEN A0, A1, AND A2 ARE ZERO) B0h A) SINGLE BYTE WRITE 1 ...