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DS1086 PDF даташит

Спецификация DS1086 изготовлена ​​​​«Maxim Integrated» и имеет функцию, называемую «Spread-Spectrum EconOscillator».

Детали детали

Номер произв DS1086
Описание Spread-Spectrum EconOscillator
Производители Maxim Integrated
логотип Maxim Integrated логотип 

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DS1086 Даташит, Описание, Даташиты
19-6224; Rev 2; 3/12
Spread-Spectrum EconOscillator
General Description
The DS1086 EconOscillator™ is a 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 frequency 2% or
4% below the programmed frequency. The DS1086 has
a power-down mode and an output-enable control for
power-sensitive applications. All the device settings are
stored in nonvolatile (NV) EEPROM memory allowing it
to operate in stand-alone applications.
Applications
Printers
Copiers
PCs
Computer Peripherals
Cell Phones
Cable Modems
Features
o User-Programmable Square-Wave Generator
o Frequencies Programmable from 260kHz to
133MHz
o 2% or 4% Selectable Dithered Output
o Glitchless Output-Enable Control
o 2-Wire Serial Interface
o Nonvolatile Settings
o 5V Supply
o No External Timing Components Required
o Power-Down Mode
o 10kHz Master Frequency Step Size
o EMI Reduction
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS1086U
0°C to +70°C
8 µSOP
DS1086U+
0°C to +70°C
8 µSOP
DS1086Z
0°C to +70°C
8 SO
DS1086Z+
0°C to +70°C
8 SO
Note: Contact the factory for custom settings.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit
Pin Configuration
MICRO-
PROCESSOR
DITHERED 260kHz TO
133MHz OUTPUT
XTL1/OSC1
VCC OUT
XTL2/OSC2 N.C.
SPRD
VCC
GND
DS1086
VCC
SCL*
SDA*
PDN
OE
DECOUPLING CAPACITORS
(0.1µF and 0.01µF)
*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086 NEVER NEEDS
TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.
TOP VIEW
OUT 1
SPRD 2
VCC 3
GND 4
DS1086
8 SCL
7 SDA
6 PDN
5 OE
µSOP/SO
EconOscillator is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.









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DS1086 Даташит, Описание, Даташиты
Spread-Spectrum EconOscillator
ABSOLUTE MAXIMUM RATINGS
Voltage on VCC Relative to Ground ......................-0.5V to +6.0V
Voltage on SPRD, PDN, OE, SDA,
SCL Relative to Ground (See Note 1).......-0.5 to (VCC + 0.5V)
Continuous Power Dissipation (TA = +70°C)
µSOP (derate 4.5mW/°C above +70°C)........................362mW
SO (derate 5.9mW/°C above +70°C) .........................470.6mW
Note 1: This voltage must not exceed 6.0V.
Junction Temperature ......................................................+150°C
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature (reflow)
Lead(Pb)-free................................................................+260°C
Containing lead(Pb) .....................................................+240°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.
RECOMMENDED DC OPERATING CONDITIONS
(VCC = 5V ±5%, TA = 0°C to +70°C.)
PARAMETER
Supply Voltage
High-Level Input Voltage
(SDA, SCL)
SYMBOL
VCC (Note 1)
VIH
CONDITIONS
Low-Level Input Voltage
(SDA, SCL)
VIL
High-Level Input Voltage
(SPRD, PDN, OE)
VIH
Low-Level Input Voltage
(SPRD, PDN, OE)
VIL
MIN
4.75
0.7 x
VCC
-0.3
2
-0.3
TYP
5.00
MAX
5.25
VCC +
0.3
0.3 x
VCC
VCC +
0.3
UNITS
V
V
V
V
0.8 V
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ±5%, TA = 0°C to +70°C.)
PARAMETER
High-Level Output Voltage (OUT)
Low-Level Output Voltage (OUT)
High-Level Input Current
Low-Level Input Current
Supply Current (Active)
Standby Current (Power-Down)
SYMBOL
VOH
VOL
IIH
IIL
ICC
ICCQ
CONDITIONS
IOH = -4mA, VCC = min
IOL = 4mA
VCC = 5.25V
VIL = 0V
CL = 15pF (output at default frequency)
Power-down mode
MIN TYP MAX UNITS
2.4 V
0.4 V
1 µA
-1 µA
35 mA
35 µA
2 _______________________________________________________________________________________









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DS1086 Даташит, Описание, Даташиты
Spread-Spectrum EconOscillator
MASTER OSCILLATOR CHARACTERISTICS
(VCC = 5V ±5%, TA = 0°C to +70°C.)
PARAMETER
SYMBOL
Master Oscillator Range
Default Master Oscillator Frequency
fOSC
f0
(Note 2)
Master Oscillator Frequency
Tolerance
f0
f0
VCC = 5V,
TA = +25°C
(Notes 3,17)
CONDITION
Default frequency(f0)
DAC step size
Voltage Frequency Variation
Temperature Frequency Variation
Dither Frequency Range
Integral Nonlinearity of Frequency
DAC
fV Over voltage range, Default frequency
f0 TA = +25°C (Note 4) DAC step size
fT
f0
Over temperature
range, VCC = 5V
(Note 5)
Default frequency
133MHz
66MHz
f Prescaler bit J0 = 1 (Note 6)
f0 Prescaler bit J0 = 0 (Note 6)
INL Entire range (Note 7)
DAC Step Size
between two consecutive DAC values
(Note 8)
DAC Span
DAC Default
Offset Step Size
Frequency range for one offset setting
(see Table 2)
Factory default register setting
between two consecutive offset values
(see Table 2)
Offset Default
OS
Factory default OFFSET register setting
(5 LSBs) (see Table 2)
Dither Rate
MIN
66
-0.75
-0.75
-0.75
-0.75
-0.5
-0.5
-1.0
-0.4
TYP
97.1
2
4
MAX
133
+0.75
+0.75
+0.75
+0.75
+0.5
+0.5
+1.0
UNITS
MHz
MHz
%
%
%
%
+0.4
%
10 kHz
10.24
500
5.12
RANGE
(5 LSBs of
RANGE register)
f0/4096
MHz
decimal
MHz
hex
Hz
_______________________________________________________________________________________ 3










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