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Temperature Compensated - TCXO Oscillators

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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:

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

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Manufacturer Part No	Newark Part No.	Description / Manufacturer	Price for:	Price	Quantity	Frequency Nom	Frequency Stability + / -	Oscillator Case	Oscillator Output Compatibility	Supply Voltage Nom	Product Range	Operating Temperature Min	Operating Temperature Max
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LFTCXO075792	43AC3344 Data Sheet + RoHS	TCXO, 10MHZ, 3.2MM X 2.5MM, CLIPPED SINE IQD FREQUENCY PRODUCTS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $24.54 10+ $22.77 25+ $21.21 50+ $19.71 100+ $18.17 250+ $17.13 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	10MHz	0.28ppm	SMD, 3.2mm x 2.5mm	Clipped Sinewave	3.3V	IQXT-220-1	-40°C	85°C
ATX-13-F-38.400MHZ-F05-T	56AJ9438 + RoHS Date/Lot Code	TCXO, 38.4MHZ, CLIPPED SINEWAVE, 2X1.6MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $2.63	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	38.4MHz	0.5ppm	SMD, 2mm x 1.6mm	Clipped Sinewave	-	ATX-13	-40°C	85°C
ASTX-H12-12.000MHZ-T	73AJ1530 Data Sheet + RoHS Date/Lot Code	TCXO, 12MHZ, HCMOS, SMD, 2.5MM X 2MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $4.88 10+ $4.63 25+ $4.50 50+ $4.37 100+ $4.12 250+ $4.06 500+ $3.99 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	12MHz	2.5ppm	SMD, 2.5mm x 2mm	HCMOS	3.3V	ASTX-H12	-30°C	75°C
ASTX-H11-26.000MHZ-T	73AJ1522 Data Sheet + RoHS Date/Lot Code	TCXO, 26MHZ, HCMOS, SMD, 3.2MM X 2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $4.47 10+ $4.25 25+ $4.14 50+ $4.02 100+ $3.69 250+ $3.61 500+ $3.53 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	26MHz	2.5ppm	SMD, 3.2mm x 2.5mm	HCMOS	3.3V	ASTX-H11	-30°C	75°C
ATX-13-F-38.400MHZ-F05-T	56AJ9437 Data Sheet + RoHS Date/Lot Code	TCXO, 38.4MHZ, CLIPPED SINEWAVE, 2X1.6MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.82 10+ $2.78	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	38.4MHz	0.5ppm	SMD, 2mm x 1.6mm	Clipped Sinewave	-	ATX-13	-40°C	85°C

ATX-12-F-26.000MHZ-F05-T	56AJ9432 Data Sheet + RoHS Date/Lot Code	TCXO, 26MHZ, CLIPPED SINEWAVE, 2.5MMX2MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $2.59	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	26MHz	0.5ppm	SMD, 2.5mm x 2mm	Clipped Sinewave	-	ATX-12	-40°C	85°C

SIT5155AI-FK-33E0-10.000000X	67AC8612 Data Sheet + RoHS	TCXO, 10MHZ, LVCMOS, SMD, 5MM X 3.2MM SITIME You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $32.33 10+ $30.21 25+ $30.13 50+ $30.12 100+ $29.22 250+ $28.33 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	0	0	SMD, 5mm x 3.2mm	LVCMOS	0	SiT5155	-40°C	85°C

ASTX-H11-24.576MHZ-T	73AJ1521 Data Sheet + RoHS Date/Lot Code	TCXO, 24.576MHZ, 3.2MM X 2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $2.79 2000+ $2.71 4000+ $2.65	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	24.576MHz	2.5ppm	SMD, 3.2mm x 2.5mm	HCMOS	3.3V	ASTX-H11	-30°C	75°C

AST3TQ-T-25.000MHZ-28	73AJ1538 Data Sheet + RoHS	TCXO, 25MHZ, LVCMOS, 7MM X 5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each	1+ $23.82 5+ $23.15 10+ $22.47 25+ $22.45 50+ $21.88 100+ $21.52 250+ $21.51 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	25MHz	280ppb	SMD, 7mm x 5mm	LVCMOS	3.3V	AST3TQ-28	-40°C	85°C

ATX-13-F-26.000MHZ-F05-T	56AJ9435 + RoHS Date/Lot Code	TCXO, 26MHZ, CLIPPED SINEWAVE, 2MMX1.6MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.69	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	26MHz	0.5ppm	SMD, 2mm x 1.6mm	Clipped Sinewave	-	ATX-13	-40°C	85°C

SIT5356AI-FQ-33E0-25.000000X	67AC8621 Data Sheet + RoHS	TCXO, 25MHZ, LVCMOS, SMD, 5MM X 3.2MM SITIME You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $55.21 10+ $52.35 25+ $51.88 50+ $51.40 100+ $49.49	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	0	0	0	0	0	0	-40°C	85°C

ECS-TXO-2520-33-400-AN-TR	26AJ5818 Data Sheet + RoHS	TCXO, 40MHZ, HCMOS, SMD, 2.5MM X 2MM ROHS COMPLIANT: YES ECS INC INTERNATIONAL You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.59 10+ $2.54 25+ $2.49 50+ $2.42	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	40MHz	2.5ppm	SMD, 2.5mm x 2mm	HCMOS	3.3V	ECS-TXO-2520	-40°C	85°C

7Z-26.000MBG-T	82T5867 Data Sheet + RoHS Date/Lot Code	TCXO, GPS, 26 MHz, 0.5 ppm, SMD, 2mm x 1.6mm, Clipped Sinewave, 3.3 V, 7Z Series TXC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $1.78 25+ $1.78 50+ $1.78 100+ $1.78 250+ $1.78 500+ $1.78 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	26MHz	0.5ppm	SMD, 2mm x 1.6mm	Clipped Sinewave	3.3V	7Z Series	-30°C	85°C

DS32KHZS#	68AC5083 Data Sheet + RoHS	TCXO, 32.768KHZ, SQUARE WAVE, SOIC ANALOG DEVICES You previously purchased this product. View in Order History	Each	1+ $7.89 10+ $7.43 25+ $7.42 92+ $7.19 138+ $6.79 276+ $6.65 506+ $6.49 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	0	0	0	0	0	0	0	0

ASTX-H11-27.000MHZ-T	73AJ1524 + RoHS Date/Lot Code	TCXO, 27MHZ, HCMOS, 3.2MM X 2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $4.79 10+ $4.54 25+ $4.41 50+ $4.28 100+ $4.04 250+ $3.97 500+ $3.91 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	27MHz	2.5ppm	SMD, 3.2mm x 2.5mm	HCMOS	3.3V	ASTX-H11	-30°C	75°C

ATX-11-F-32.000MHZ-F05-T	56AJ9429 Data Sheet + RoHS Date/Lot Code	TCXO, 32MHZ, CLIPPED SINEWAVE, 3.2X2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $3.20 10+ $3.11 25+ $3.04 50+ $2.96 100+ $2.93	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	32MHz	0.5ppm	SMD, 3.2mm x 2.5mm	Clipped Sinewave	-	ATX-11	-40°C	85°C

ATX-12-F-32.000MHZ-F05-T	56AJ9433 Data Sheet + RoHS	TCXO, 32MHZ, CLIPPED SINEWAVE, 2.5MMX2MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.87 10+ $2.80 25+ $2.74 50+ $2.67 100+ $2.35 250+ $2.28 500+ $2.19 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	32MHz	0.5ppm	SMD, 2.5mm x 2mm	Clipped Sinewave	-	ATX-12	-40°C	85°C

ECS-TXO-2520-33-250-AN-TR	60AJ3674 Data Sheet + RoHS	TCXO, 25MHZ, HCMOS, SMD, 2.5MM X 2MM ROHS COMPLIANT: YES ECS INC INTERNATIONAL You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $1.91	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	25MHz	2.5ppm	SMD, 2.5mm x 2mm	HCMOS	3.3V	ECS-TXO-2520	-40°C	85°C

DS32KHZN/DIP#	68AH9631 Data Sheet + RoHS Date/Lot Code	TCXO, 32.768KHZ, 5V, SMD ROHS COMPLIANT: YES ANALOG DEVICES You previously purchased this product. View in Order History	Each	1+ $10.82 10+ $10.29 44+ $9.96 66+ $9.34 110+ $9.10 264+ $8.86 506+ $8.72 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	32.768kHz	7.5ppm	SMD, 21.84mm x 11.68mm	Square Wave	5V	DS32kHz	-40°C	85°C

ATX-11-F-26.000MHZ-F05-T	56AJ9425 Data Sheet + RoHS	TCXO, 26MHZ, CLIPPED SINEWAVE, 3.2X2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.84	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	26MHz	0.5ppm	SMD, 3.2mm x 2.5mm	Clipped Sinewave	-	ATX-11	-40°C	85°C

ASTX-H11-27.000MHZ-T	73AJ1525 Data Sheet + RoHS	TCXO, 27MHZ, HCMOS, 3.2MM X 2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $2.79 2000+ $2.71 4000+ $2.65	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	27MHz	2.5ppm	SMD, 3.2mm x 2.5mm	HCMOS	3.3V	ASTX-H11	-30°C	75°C

ATX-13-F-26.000MHZ-F05-T	56AJ9436 Data Sheet + RoHS Date/Lot Code	TCXO, 26MHZ, CLIPPED SINEWAVE, 2MMX1.6MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Full Reel)	1000+ $2.53	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	26MHz	0.5ppm	SMD, 2mm x 1.6mm	Clipped Sinewave	-	ATX-13	-40°C	85°C

AST3TQ-T-30.720MHZ-28	73AJ1539 Data Sheet + RoHS Date/Lot Code	TCXO, 30.72MHZ, LVCMOS, 7MM X 5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each	1+ $23.83 5+ $23.25 10+ $22.67	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add	30.72MHz	280ppb	SMD, 7mm x 5mm	LVCMOS	3.3V	AST3TQ-28	-40°C	85°C

ATX-11-F-27.000MHZ-F05-T	56AJ9427 Data Sheet + RoHS Date/Lot Code	TCXO, 27MHZ, CLIPPED SINEWAVE, 3.2X2.5MM ROHS COMPLIANT: YES ABRACON You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $2.64 10+ $2.58 25+ $2.53 50+ $2.46 100+ $2.18 250+ $2.11 500+ $2.03 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	27MHz	0.5ppm	SMD, 3.2mm x 2.5mm	Clipped Sinewave	-	ATX-11	-40°C	85°C

SIT5155AI-FK-33E0-20.000000X	67AC8613 Data Sheet + RoHS	TCXO, 20MHZ, LVCMOS, SMD, 5MM X 3.2MM SITIME You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ $38.71 10+ $38.71 25+ $38.70	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	0	0	SMD, 5mm x 3.2mm	LVCMOS	0	SiT5155	-40°C	85°C