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Spread Spectrum Oscillators: 38 Products Found

We offer a range of spread spectrum oscillators for engineers seeking to design secure communication channels and switched-mode power supplies with low EMI generation

A spread spectrum oscillator is an electronic oscillator that generates a signal whose frequency is deliberately varied over time. The frequency variation is usually accomplished by using a phase-locked loop (PLL) or a delay-locked loop (DLL) in conjunction with a voltage-controlled oscillator (VCO). The purpose of this variation is to reduce the spectral density of the signal and thus reduce electromagnetic interference (EMI) with other devices.

Spread-spectrum techniques are used for the establishment of secure communications, increasing resistance to natural interference, noise, and jamming, to prevent detection, to limit power flux density (e.g., in satellite downlinks), and to enable multiple-access communications.

Analog Devices’ DS1090 Series are low-cost, dithered oscillators intended to be used as an external clock for switched-mode power supplies and other low-frequency applications. The dithering or sweeping function reduces peak-radiated emissions from the power supply at its fundamental frequency, as well as harmonic frequencies.

The devices consists of a resistor-programmed master oscillator, factory-programmed clock prescaler, and a pin-programmed dither circuit. These features allow the DS1090 to be used in applications where a spread-spectrum clock is desired to reduce radiated emissions. A combination of factory-set prescaler and external resistor allows for output frequencies ranging from 125kHz to 8MHz. Both dither frequency and dither percentage are set using control pins.

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2798710

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Each
1+
£2.260
10+
£2.030
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£1.850
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£1.660
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£1.500
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Min: 1 / Mult: 1
4MHz
CMOS / TTL
-
µMAX
5.5V
DS1090
-40°C
85°C
-
2798711

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Each
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£2.220
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£1.990
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£1.880
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£1.600
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£1.500
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Min: 1 / Mult: 1
33.3MHz
Square Wave
-
µMAX
3.3V
DS1091L
-40°C
125°C
Centre
1641083

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Each (Supplied on Cut Tape)
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£5.150
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£4.890
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£4.580
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£4.550
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£4.510
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Min: 1 / Mult: 1
100MHz
CMOS
50ppm
SMD, 7mm x 5mm
3.3V
3EQHM57
-40°C
85°C
Centre Spread ±1.5%
1641083RL

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£4.580
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£4.550
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£4.510
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£4.480
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£4.440
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Min: 100 / Mult: 1
100MHz
CMOS
50ppm
SMD, 7mm x 5mm
3.3V
3EQHM57
-40°C
85°C
Centre Spread ±1.5%
4032642

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£5.750
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£5.190
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£4.950
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£4.300
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£4.110
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
125°C
-
4032636

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£3.890
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£3.680
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£3.190
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£3.020
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-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
0°C
70°C
-
4032646

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£4.370
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£3.620
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£3.450
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
85°C
-
4032649RL

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£4.060
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£3.440
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£3.140
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-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
85°C
-
4032645

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Each (Supplied on Cut Tape)
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£4.050
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£3.750
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£3.590
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£3.140
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£3.000
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Min: 1 / Mult: 1
-
CMOS
40ppm
DFN, 2mm x 3mm
5V
LTC6908-2 Series
-40°C
85°C
-
4032647

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Each (Supplied on Cut Tape)
Cut Tape
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£4.820
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£4.350
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£3.600
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£3.440
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
85°C
-
4032647RL

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Each (Supplied on Cut Tape)
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£4.150
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£3.440
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£3.140
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Min: 10 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
85°C
-
4032645RL

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Each (Supplied on Cut Tape)
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£3.750
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£3.590
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£2.850
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Min: 10 / Mult: 1
-
CMOS
40ppm
DFN, 2mm x 3mm
5V
LTC6908-2 Series
-40°C
85°C
-
4032637

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£5.220
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£4.950
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£4.020
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
125°C
-
4032646RL

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Each (Supplied on Cut Tape)
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£4.170
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£3.150
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Min: 10 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
85°C
-
4032636RL

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Each (Supplied on Cut Tape)
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£2.170
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CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
0°C
70°C
-
4032643

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Each (Supplied on Cut Tape)
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£4.860
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£4.590
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£4.260
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£4.030
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
125°C
-
4032641

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Each (Supplied on Cut Tape)
Cut Tape
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£4.790
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£4.530
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£4.360
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£4.190
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£4.090
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
125°C
-
4032648

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
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£4.790
10+
£4.320
25+
£4.120
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£3.580
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£3.220
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
85°C
-
4032648RL

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Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
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£4.320
25+
£4.120
100+
£3.580
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£3.220
500+
£2.960
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Min: 10 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
85°C
-
4032649

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
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£4.820
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£4.350
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£4.060
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£3.600
250+
£3.440
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Min: 1 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
85°C
-
4210551

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Each (Supplied on Cut Tape)
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£4.130
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£3.720
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£3.500
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£3.110
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£2.680
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Min: 1 / Mult: 1
10MHz
CMOS
40ppm
TSOT-23
5.5V
LTC6908-2 Series
0°C
70°C
-
4032641RL

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Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
£4.530
25+
£4.360
100+
£4.190
250+
£4.090
500+
£3.990
More Pricing...
Min: 10 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-1 Series
-40°C
125°C
-
4032644

RoHS

Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
£4.820
10+
£4.350
25+
£4.150
100+
£3.600
250+
£3.440
More Pricing...
Min: 1 / Mult: 1
-
CMOS
40ppm
DFN, 2mm x 3mm
5V
LTC6908-1 Series
-40°C
85°C
-
4032643RL

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Date/Lot Code

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
£4.590
25+
£4.450
100+
£4.260
250+
£4.030
500+
£3.790
More Pricing...
Min: 10 / Mult: 1
-
CMOS
40ppm
TSOT-23
5V
LTC6908-2 Series
-40°C
125°C
-
4210550RL

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Each (Supplied on Cut Tape)
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£3.230
250+
£3.070
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£2.740
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£2.310
2500+
£2.220
Min: 100 / Mult: 1
10MHz
CMOS
40ppm
DFN, 2mm x 3mm
5.5V
LTC6908-1 Series
0°C
70°C
-
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