DS1086LU ,3.3V Spread-Spectrum EconOscillatorApplications♦ 2.7V to 3.6V SupplyPrinters♦ No External Timing Components RequiredCopiersPCs ♦ Power ..
DS1086LU+T ,3.3V Spread-Spectrum EconOscillatorapplications. All the device settings are stored in non-♦ Glitchless Output-Enable Controlvolatile ..
DS1086LU-12F ,3.3V Spread-Spectrum EconOscillator DS1086L3.3V Spread-Spectrum EconOscillator
DS1086LU-12F+ ,3.3V Spread-Spectrum EconOscillatorapplications.♦ Nonvolatile Settings
DS1086LU-12F+ ,3.3V Spread-Spectrum EconOscillatorApplications♦ 2.7V to 3.6V SupplyPrinters♦ No External Timing Components RequiredCopiersPCs ♦ Power ..
DS1086LU-12F+ ,3.3V Spread-Spectrum EconOscillatorFeaturesThe DS1086L EconOscillator™ is a 3.3V programmable♦ User-Programmable Square-Wave Generator ..
DT5C124E , Transistor Switch Digital Transistor Arrays (Inclusdes Resistors)
DT5C124E , Transistor Switch Digital Transistor Arrays (Inclusdes Resistors)
DT5C143E , Transistor Switch Digital Transistor Arrays (Inclusdes Resistors)
DT5C144E , Transistor Switch Digital Transistor Arrays (Inclusdes Resistors)
DTA113TKA , Digital transistor (built in resistor)
DTA113TKA , Digital transistor (built in resistor)
DS1086LU
3.3V Spread-Spectrum EconOscillator
General DescriptionThe DS1086L EconOscillator™ is a 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 fre-
quency 0.5%,1%, 2%, 4%, or 8% below the pro-
grammed frequency. The DS1086L has a power-down
mode and an output-enable control for power-sensitive
applications. All the device settings are stored in non-
volatile (NV) EEPROM memory allowing it to operate in
stand-alone applications.
ApplicationsPrinters
Copiers
PCs
Computer Peripherals
Cell Phones
Cable Modems
FeaturesUser-Programmable Square-Wave GeneratorFrequencies Programmable from 130kHz to
66.6MHz0.5%, 1%, 2%, 4%, or 8% Selectable Dithered
OutputAdjustable Dither RateGlitchless Output-Enable Control2-Wire Serial InterfaceNonvolatile Settings2.7V to 3.6V SupplyNo External Timing Components RequiredPower-Down Mode5kHz Master Frequency Step SizeEMI ReductionIndustrial Temperature Range: -40°C to +85°C
DS1086L
3.3V Spread-Spectrum EconOscillator
Pin Configuration
Ordering Information
Typical Operating CircuitRev 0; 11/03
EconOscillator is a trademark of Dallas Semiconductor.
DS1086L
3.3V Spread-Spectrum EconOscillator
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED DC OPERATING CONDITIONS(VCC= 2.7V to 3.6V, TA= -40°C to +85°C.)
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.
DC ELECTRICAL CHARACTERISTICSVoltage Range on VCCRelative to Ground ..........-0.5V to +6.0V
Voltage Range on SPRD, PDN, OE, SDA, and SCL
Relative to Ground*..................................-0.5 to (VCC+ 0.5V)
Operating Temperature Range...........................-40°C to +85°C
Programming Temperature Range.........................0°C to +70°C
Storage Temperature Range.............................-55°C to +125°C
Soldering Temperature ..................See IPC/JEDEC J-STD-020A
*This voltage must not exceed 6.0V.
DS1086L
3.3V Spread-Spectrum EconOscillator
MASTER OSCILLATOR CHARACTERISTICS
DS1086L
3.3V Spread-Spectrum EconOscillator
AC ELECTRICAL CHARACTERISTICS
AC ELECTRICAL CHARACTERISTICS—2-WIREINTERFACE
DS1086L
3.3V Spread-Spectrum EconOscillator
AC ELECTRICAL CHARACTERISTICS—2-WIREINTERFACE (continued)
NONVOLATILEMEMORYCHARACTERISTICS(VCC= 2.7V to 3.6V)
Note 1:All voltages are referenced to ground.
Note 2:DAC and OFFSET register settings must be configured to maintain the master oscillator frequency within this range.
Correct operation of the device is not guaranteed if these limits are exceeded.
Note 3:This is the absolute accuracy of the master oscillator frequency at the default settings.
Note 4:This is the change that is observed in master oscillator frequency with changes in voltage from nominal voltage at = +25°C.
Note 5:This is the percentage frequency change from the +25°C frequency due to temperature at VCC= 3.3V.The maximum temper-
ature change varies with the master oscillator frequency setting. The minimum occurs at the default master oscillator frequen-
cy (fdefault). The maximum occurs at the extremes of the master oscillator frequency range (33.3MHz or 66.6MHz).
Note 6:The dither deviation of the master oscillator frequency is unidirectional and lower than the undithered frequency.
Note 7:The integral nonlinearity of the frequency is a measure of the deviation from a straight line drawn between the two end-
points (fosc(MIN)to fosc(MAX)) of the range. The error is in percentage of the span.
Note 8:This is true when the prescaler = 1.
Note 9:Frequency settles faster for small changes in value. During a change, the frequency transitions smoothly from the original
value to the new value.
Note 10: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. tstabis equivalent to approximately 512 master clock cycles and therefore
depends on the programmed clock frequency.
Note 11:Output voltage swings can be impaired at high frequencies combined with high output loading.
Note 12:A fast-mode device can be used in a standard-mode system, but the requirement tSU:DAT> 250ns must then be met.
This is automatically the case if the device does not stretch the LOW period of the SCL signal. If such a device does
stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line at least tR MAX+ tSU:DAT=
1000ns + 250ns = 1250ns before the SCL line is released.
Note 13:After this period, the first clock pulse is generated.
Note 14:A device must internally provide a hold time of at least 300ns for the SDA signal (referred to as the VIH MINof the SCL
signal) to bridge the undefined region of the falling edge of SCL.
Note 15:The maximum tHD:DATneed only be met if the device does not stretch the LOW period (tLOW) of the SCL signal.
Note 16:CB—total capacitance of one bus line, timing referenced to 0.9 x VCCand 0.1 x VCC.
Note 17:Typical frequency shift due to aging is ±0.5%. 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 +0/-5°C peak) followed by 1000hr
max VCCbiased 125°C HTOL, 1000 temperature cycles at -55°C to +125°C, 96hr 130°C/85%RH/3.6V HAST and 168hr
121°C/2 ATM Steam/Unbiased Autoclave.
Note 18:tstabis the time required after exiting power-down to the beginning of output oscillations. In addition, a delay of tDACstab
is required before the frequency will be within its specified tolerance.
Typical Operating Characteristics(VCC= 3.3V, TA= 25°C, unless otherwise noted.)
DS1086L
3.3V Spread-Spectrum EconOscillator
SUPPLY CURRENT vs.
MASTER OSCILLATOR FREQUENCYDS1086L toc01
MASTER FREQUENCY (MHz)
SUPPLY CURRENT (mA)60363942485154455766
SUPPLY CURRENT vs. TEMPERATUREDS1086L toc02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)3510-15
SUPPLY CURRENT vs. PRESCALER
DS1086L toc03
PRESCALER
SUPPLY CURRENT (mA)
MASTER OSCILLATOR FREQUENCY PERCENT
CHANGE vs. SUPPLY VOLTAGE
DS1086L toc04
SUPPLY VOLTAGE (V)
PERCENT CHANGET (%)
MASTER OSCILLATOR FREQUENCY PERCENT
CHANGE vs. TEMPERATURE
DS1086L toc05
TEMPERATURE (°C)
PERCENT CHANGE (%)35-1510
DUTY CYCLE vs. TEMPERATURE
DS1086L toc06
TEMPERATURE (°C)
DUTY CYCLE (%)3510-15
DUTY CYCLE vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
DS1086L toc07
DUTY CYCLE (%)
DS1086L
3.3V Spread-Spectrum EconOscillator
POWER-DOWN CURRENT vs. TEMPERATUREDS1086L toc09
TEMPERATURE (°C)
POWER-DOWN CURRENT (3510-15
SUPPLY CURRENT WITH OUTPUT
DISABLED vs. TEMPERATURE
DS1086L toc11
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)3510-15
-4085
ypical Operating Characteristics (continued)(VCC= 3.3V, TA= 25°C, unless otherwise noted.)
DS1086L
3.3V Spread-Spectrum EconOscillator