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How to tell if a product is a TCXO or a VCTCXO from the datasheet

2025-04-25

How to tell if a product is a TCXO or a VCTCXO from the datasheet

 

Both Temperature Compensated Crystal Oscillators (TCXOs) and Voltage-Controlled Temperature Compensated Crystal Oscillators (VC-TCXOs) are designed to combat frequency variations caused by temperature changes. They employ temperature compensation techniques to maintain a stable output frequency across a defined temperature range. This makes them a preferred choice over other crystal oscillator types.

TCXOs and VC-TCXOs find use in a variety of applications, including:

  • Base Stations
  • GPS/GNSS Receivers
  • Industrial Instrumentation
  • Wireless Systems
  • Test and Measurement Instruments

1. Firstly,let's see the pads functions.

 

A: If the pad 1 is VC, then it is VCTCXO

B: If the pad 1 is GND, means the pad is not connect, then it is normal TCXO, no voltage control functions.

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  0

2. See the specs difference, below specs is only for VCTCXO, and There is no same specs in TCXO

 

Frequency Control Range

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  1

 

Also, there are some other difference in TCXO and VCTCXO like below table.

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  2

 

 

In conclusion, the decision between TCXO and VC-TCXO hinges on the specific needs of the application, taking into account the necessity for frequency adjustment, temperature stability requirements, and budgetary constraints.

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Company news about-How to tell if a product is a TCXO or a VCTCXO from the datasheet

How to tell if a product is a TCXO or a VCTCXO from the datasheet

2025-04-25

How to tell if a product is a TCXO or a VCTCXO from the datasheet

 

Both Temperature Compensated Crystal Oscillators (TCXOs) and Voltage-Controlled Temperature Compensated Crystal Oscillators (VC-TCXOs) are designed to combat frequency variations caused by temperature changes. They employ temperature compensation techniques to maintain a stable output frequency across a defined temperature range. This makes them a preferred choice over other crystal oscillator types.

TCXOs and VC-TCXOs find use in a variety of applications, including:

  • Base Stations
  • GPS/GNSS Receivers
  • Industrial Instrumentation
  • Wireless Systems
  • Test and Measurement Instruments

1. Firstly,let's see the pads functions.

 

A: If the pad 1 is VC, then it is VCTCXO

B: If the pad 1 is GND, means the pad is not connect, then it is normal TCXO, no voltage control functions.

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  0

2. See the specs difference, below specs is only for VCTCXO, and There is no same specs in TCXO

 

Frequency Control Range

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  1

 

Also, there are some other difference in TCXO and VCTCXO like below table.

latest company news about How to tell if a product is a TCXO or a VCTCXO from the datasheet  2

 

 

In conclusion, the decision between TCXO and VC-TCXO hinges on the specific needs of the application, taking into account the necessity for frequency adjustment, temperature stability requirements, and budgetary constraints.