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Temperature Compensated - TCXO Oscillators: 744 Products Found

We offer a wide range of temperature compensated crystal oscillators for applications demanding a high stability, precision frequency source within a small space and at a reasonable cost

What are Temperature Compensated Oscillators?

The TCXO, Temperature Compensated Crystal Oscillator (Xtal oscillator), is a form of crystal oscillator used where a precision frequency source is required within a small space and at a reasonable cost.

By applying temperature compensation within the quartz crystal oscillator module, it is possible to considerably improve on the basic performance of the crystal.

Temperature Compensated Oscillators (TCXOs) use a temperature-sensitive reactance circuit in their oscillation loop to compensate for the frequency-temperature characteristics inherent to the crystal unit. This makes them more stable than other types of oscillators and they are used in applications where high stability is required such as in GPS receivers, mobile phones, and other communication equipment.

In view of their usefulness, a wide range of TXCOs is available from many suppliers in a whole variety of packages and mounts (surface, through-hole). Some TCXOs are compatible with the dual in line format used for many through hole mounted integrated circuits.

How to minimise the effects of temperature on the quartz crystal

Although crystal oscillators offer a highly stable form of oscillator, they are nevertheless affected by temperature. The type of crystal cut inside the oscillator can help to minimise the effects of temperature, but they are still affected to some degree.

For a crystal cut known as the AT cut, the drift with temperature can be minimised around normal ambient temperature, but the rate of drift will rise above and below this.

SiTime’s Elite Platform®, Elite X™, and Elite RF™ Super-TCXOs are precision timing solutions with exceptional dynamic performance and rich features. These devices solve deep-rooted timing problems for telecom, RF, networking, edge synchronisation, and precision GNSS applications. By combining tight-stability and low phase noise with the robust package of a ceramic TCXO, Si Time Super-TCXOs replace legacy quartz OCXOs while increasing reliability, lowering power, and reducing size.

Features:

  1. Tight stability (±0.01 ppm to ±2.5 ppm), 1 to 220 MHz
  2. Better dynamic stability than quartz (±0.5 ppb/℃ ∆F/∆T), resistant to airflow and thermal shock
  3. -40℃ to 105℃ operation uniquely enables fan-less outdoor equipment
  4. Low phase noise: -159 dBc/Hz at 10 kHz (19.2 MHz nominal)
  5. Lower power consumption (110 mW, 2.5V) for battery-operated edge equipment
  6. I2C digital frequency tuning eliminates external DAC and sensitivity to board noise
  7. On-chip power supply noise filtering eliminates dedicated LDO
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2805453

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Each (Supplied on Cut Tape)
Cut Tape
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1+
£13.560
5+
£13.110
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£12.650
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£12.260
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£12.230
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Min: 1 / Mult: 1
10MHz
0.28ppm
-
-
3.3V
-
-40°C
85°C
2805453RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
£12.650
20+
£12.260
40+
£12.230
100+
£11.810
500+
£11.570
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Min: 10 / Mult: 1
10MHz
0.28ppm
-
-
3.3V
-
-40°C
85°C
3649734

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Each (Supplied on Full Reel)
Full Reel
1000+
£2.060
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£1.800
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£1.490
Min: 1000 / Mult: 1000
25MHz
2.5ppm
SMD, 2.5mm x 2mm
HCMOS
3.3V
ECS-TXO-2520
-40°C
85°C
3649621

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Each (Supplied on Cut Tape)
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£2.220
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£2.120
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£1.850
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£1.750
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£1.640
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Min: 1 / Mult: 1
12MHz
2.5ppm
SMD, 2.5mm x 2mm
HCMOS
3.3V
ECS-TXO-2520
-40°C
85°C
3649621RL

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Each (Supplied on Cut Tape)
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£1.850
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£1.750
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£1.640
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£1.600
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£1.550
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Min: 100 / Mult: 1
12MHz
2.5ppm
SMD, 2.5mm x 2mm
HCMOS
3.3V
ECS-TXO-2520
-40°C
85°C
2850217

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Each (Supplied on Cut Tape)
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£3.530
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£3.090
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£2.560
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£2.290
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£2.120
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Min: 1 / Mult: 1
32.768kHz
5ppm
SMD, 1.5mm x 0.8mm
LVCMOS
-
SiT1552
-40°C
85°C
2908699

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Each (Supplied on Cut Tape)
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£109.550
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£95.860
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£79.420
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£71.210
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£65.730
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Min: 1 / Mult: 1
25MHz
0.1ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5356
-40°C
85°C
2908703

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Each (Supplied on Cut Tape)
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£68.270
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£64.750
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£64.480
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£64.210
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£62.070
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Min: 1 / Mult: 1
100MHz
0.1ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5357
-40°C
85°C
2908697

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Each (Supplied on Cut Tape)
Cut Tape
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£134.620
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£117.800
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£97.600
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£87.500
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£80.770
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Min: 1 / Mult: 1
10MHz
0.1ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5356
-40°C
85°C
3406815

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Each
1+
£7.120
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£6.900
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£6.680
138+
£6.230
276+
£6.120
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Min: 1 / Mult: 1
32.768kHz
7.5ppm
WSOIC
Square Wave
5V
DS32kHz
-40°C
85°C
2908690

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Each (Supplied on Cut Tape)
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£24.810
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£23.180
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£23.130
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£23.120
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£23.110
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Min: 1 / Mult: 1
10MHz
0.5ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5155
-40°C
85°C
2850217RL

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Each (Supplied on Cut Tape)
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£2.560
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£2.290
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£2.120
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£1.980
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£1.870
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Min: 100 / Mult: 1
32.768kHz
5ppm
SMD, 1.5mm x 0.8mm
LVCMOS
-
SiT1552
-40°C
85°C
2908694

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Each (Supplied on Cut Tape)
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£32.920
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£32.870
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£32.850
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£32.840
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£32.160
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Min: 1 / Mult: 1
25MHz
0.5ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5156
-40°C
85°C
3773430

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Each (Supplied on Cut Tape)
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£2.390
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£2.280
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£2.090
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£2.060
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£2.030
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Min: 1 / Mult: 1
32MHz
0.5ppm
SMD, 3.2mm x 2.5mm
Clipped Sinewave
-
ATX-11
-40°C
85°C
3820138

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Each (Supplied on Full Reel)
Full Reel
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£3.280
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£3.210
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£3.150
Min: 1000 / Mult: 1000
10MHz
2.5ppm
SMD, 3.2mm x 2.5mm
HCMOS
3.3V
ASTX-H11
-30°C
75°C
3404561

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£8.270
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£8.180
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£8.090
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£8.000
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£7.910
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Min: 1 / Mult: 1
32.768kHz
7.5ppm
SMD, 21.84mm x 11.68mm
Square Wave
5V
DS32kHz
-40°C
85°C
3773427

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Each (Supplied on Cut Tape)
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£2.010
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Min: 1 / Mult: 1
32MHz
0.5ppm
SMD, 2.5mm x 2mm
Clipped Sinewave
-
ATX-12
-40°C
85°C
3819844

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Date/Lot Code

Each (Supplied on Cut Tape)
Cut Tape
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£3.600
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£3.400
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£3.170
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£3.140
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Min: 1 / Mult: 1
12MHz
2.5ppm
SMD, 2.5mm x 2mm
HCMOS
3.3V
ASTX-H12
-30°C
75°C
3597164

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Each (Supplied on Cut Tape)
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£2.010
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£1.750
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£1.510
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£1.480
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£1.450
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Min: 1 / Mult: 1
50MHz
0.5ppm
SMD, 2.5mm x 2mm
Clipped Sinewave
3.3V
TG2520SMN
-40°C
85°C
2909891

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Each
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£6.530
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£6.150
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£6.030
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£5.690
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£5.440
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Min: 1 / Mult: 1
32.768kHz
7.5ppm
SOIC
Square Wave
5V
DS32kHz
0°C
70°C
2908691

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Each (Supplied on Cut Tape)
Cut Tape
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£29.760
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£29.160
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£28.570
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£27.970
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£27.380
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Min: 1 / Mult: 1
20MHz
0.5ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5155
-40°C
85°C
3820143

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Date/Lot Code

Each (Supplied on Full Reel)
Full Reel
1000+
£2.400
5000+
£2.350
10000+
£2.300
Min: 1000 / Mult: 1000
20MHz
2.5ppm
SMD, 2.5mm x 2mm
HCMOS
3.3V
ASTX-H12
-30°C
75°C
3820140

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Date/Lot Code

Each (Supplied on Full Reel)
Full Reel
1000+
£3.450
5000+
£3.020
10000+
£2.500
Min: 1000 / Mult: 1000
24MHz
2.5ppm
SMD, 3.2mm x 2.5mm
HCMOS
3.3V
ASTX-H11
-30°C
75°C
2908694RL

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Each (Supplied on Cut Tape)
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Packaging Options
10+
£32.870
25+
£32.850
50+
£32.840
100+
£32.160
250+
£32.080
More Pricing...
Min: 10 / Mult: 1
25MHz
0.5ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5156
-40°C
85°C
2908703RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
10+
£64.750
25+
£64.480
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£64.210
100+
£62.070
250+
£60.830
More Pricing...
Min: 10 / Mult: 1
100MHz
0.1ppm
SMD, 5mm x 3.2mm
LVCMOS
3.3V
SiT5357
-40°C
85°C
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