CRYSTAL OSCILLATORS

 

1. Production of crystal oscillators
2. Classification of oscillators and their use
3. Listing of oscillators and their catalog sheets
4. Catalogue sheets terms
 
1. Production of crystal oscillators
 


 Crystal oscillators 
 

Using the technology of thick film hybrid circuits as well as the surface mount technology the company manufactures crystal oscillators which are used as highly accurate and stable frequency sources e.g. in telecommunication, military and measuring equipment as well as computers.
The strong points for HC electronics as far as production of oscillators is concerned are as follows:
  • customer may choose very preciously specified frequency within the frequency range
  • possibility to produce oscillator with parameters modified based on the customer's requirements
  • short delivery times
  • possibility to make even a single oscillator
  • favorable price
  • high quality of oscillators ensured by technologies used and burning-in
  • you can consult your needs with us free of charge and we will be glad to recommend you a suitable type of oscillator
 
2. Classification of oscillators and their use
 


 OCXO oscillators
 

a)   OCXO - Oven Controlled Crystal Oscillator
These are the most stable oscillators for use in the most demanding applications with the requirement of the highest temperature stability. They have higher power consumption and dimensions.
They are frequently used in radio and television transmitters and translators, in precious measuring instruments and in military equipment.

b)   TCXO - Temperature Compensated Crystal Oscillator
These are stable oscillators with low power consumption and smaller dimensions. They are suitable for mobile equipment requiring higher stability. They are used e.g. in portable radio devices, computers and measuring instruments.

c)   MXO - Temperature Compensated Crystal Oscillator
These oscillators are characterized with their good frequency stability, small dimensions, low power consumption, low prices. They are suitable for example to small portable devices.


 CXO oscillators 
 

d)   CXO - Crystal Clock Oscillator
These are oscillators with TTL output and low price suitable for use e.g. in computers and measuring instruments.

e)   VCXO - Voltage Controlled Crystal Oscillator
This is temperature compensated and voltage controlled crystal oscillator with a high pullability.

f)   Crystal Clock Oscillators in SMD Package (CXO-SMD)
Crystal clock oscillators in SMD package are suitable for use in ADSL and XDSL modems, PLL circuits, FM modulators, measuring devices atc.

g)   Voltage Controlled Crystal Oscillators in SMD Package (VCXO-SMD)
Voltage controlled crystal oscillators in SMD package are suitable for use in ADSL and XDSL modems, PLL circuits, FM modulators, measuring devices atc.

 
3. Listing of oscillators and their catalog sheets
 

If you want to send us an inquiry for a certain type of oscillator, or request for a change of parameters of some existing oscillator, you can do it here: info@hcelectronics.cz
 

Click Type Of Oscillator to see more details in data sheets.
Family

Type Of
  Oscillator  

  Frequency 
Range
[MHz]		  Supply Voltage 
Supply Current
[V]/[mA]		  Frequency 
Stability*
[ppm]		  Waveform   Freq. Adjust.
I-internal
V-voltage
OCXO OCXO3 HC 3404 40 - 130 12/130 ±0,3 sin V
OCXO4 HC 3405 20 - 40 12/130 ±0,25 sin V
OCXO6 HC 3408 10 - 40 12/200 ±0,1 sin V
OCXO7 HC 3409 0,1 - 25 12/200 ±0,1 TTL V
OCXO10 HC 3410 3 -25 12/130 ±0,3 sin V
OCXO11 HC 3411 20 -130 12/130 ±0,3 sin V
OCXO12 HC 3412 5 -25 5/50 ±0,5 sin V
TCXO TCXO2 HC 3300 4 - 25 12/10 ±5 TTL O.C. V
TCXO3 HC 3302 4 - 25 12/5,5 ±0,5 sin V
HC 3303 4 - 25 5/3,6 ±1 sin V
HC 3304 4 - 25 9/5,5 ±2,5 sin V
HC 3305 4 - 25 9/5,5 ±1 sin V
TCXO5 HC 3308 4 - 135 11/10 ±25 sin I
HC 3314 4 - 20 5/3 ±5 sin I
HC 3315 4 - 20 5/3 ±5 sin V,I
TCXO6 HC 3306 4 - 40 5/3 ±2,5 sin V,I
HC 3307 4 - 40 5/3 ±2,5 sin I
HC 3321 4 - 40 5/15 ±2,5 HCMOS V,M
HC 3322 4 - 40 5/15 ±2,5 HCMOS M
HC 3323 4 - 40 3,3/10 ±2,5 HCMOS V,M
HC 3324 4 - 40 3,3/10 ±2,5 HCMOS M
TCXO8 HC 3309 40 - 80 5/35 ±2,5 TTL V
TCXO9 HC 3310 4 - 25 15/13 ±2,5 HCMOS V
TCCXO1 HC 3200 5 - 25 9/5,5 ±3 sin V
HC 3201 5 - 25 9/5,5 ±8 sin V
HC 3202 5 - 25 9/5,5 ±10 sin V
MXO MXO1 HC 3500 47 - 120 9/3 ±10 sin -
HC 3501 47 - 120 9/3 ±12,5 sin -
MXO HC 3530 5 - 25 9/2,2 ±10 sin  by capacity
CXO CXO HC 3631 4 - 80 5/50 ±1000 TTL -
HC 3632 4 - 80 5/50 ±100 TTL -
HC 3633 4 - 80 5/50 ±1000 TTL -
HC 3634 4 - 80 5/50 ±100 TTL -
HC 3635 4 - 80 5/50 ±80 TTL -
HC 3636 4 - 80 5/50 ±1000 TTL -
HC 3637 4 - 80 5/50 ±100 TTL -
HC 3638 4 - 80 5/50 ±50 TTL -
HC 3639 4 - 80 5/50 ±80 TTL -
CXO-SMD CXO-SMD CO 102 1,544 - 80 2,5/15 ±100 CMOS -
COL 102 1,544 - 80 2,5/15 ±100 CMOS -
CO 103 1,544 - 156,25 3,3/25 ±100 CMOS -
COL 103 1,544 - 156,25 3,3/25 ±100 CMOS -
CO 105 1,544 - 156,25 5/35 ±100 CMOS -
COL 105 1,544 - 156,25 5/35 ±100 CMOS -
VCXO VCXO2 HC 3101 6 - 10 9/5,5 ±25 modulation
HC 3102 10 - 26 9/5,5 ±20 modulation
VCXO3 HC 3103 6 - 30 5/25 ±35 TTL V
 VCTCXO6  HC 3104 4 - 30 5/3 ±2,5 sin V,I
VCXO-SMD VCXO 103 VO 103 1,544 - 55 3,3/15 ±100 CMOS V
VO 103D 1,544 - 40 3,3/15 ±100 CMOS V
VCXO 105 VO 105 1,544 - 55 5/20 ±100 CMOS V
VO 105D 1,544 - 40 5/20 ±100 CMOS V
Your
 oscillator 

Oscillator with requested parameters
* Frequency stability with temperature of each type is entered in relation to its specific temperature range.
  See details in data sheets.
 
 
 
 
 
 
 
 
4. Catalogue sheets terms
 

Nominal frequency - oscillator frequency, which must lie in fixed range and which can be randomly changed in this range.

Supply current at switch on - in case of OCXO oscillators on switch on after ca 2 to 10 minutes according to the oscillator type it is necessary to warm up the thermostat on operating temperature. The oscillator takes higher supply current during this time.

Frequency stability with temperature - set the maximal frequency changes in fixed temperature range. It will be set in ppm, also in millionth of nominal frequency of oscillator.

Frequency stability with supply voltage - set how can be the nominal frequency changed in case of supply voltage change in the range fixed at supply voltage. It will be set in ppm.

Pulling voltage - it is possible to fine-tune the nominal frequency of oscillator with connection of voltage to one its outlet (marked V ctrl) at most of oscillators. At some oscillator it is possible to use steady voltage of the lead which is marked Out Uref for pulling voltage setting.

Mechanical frequency adjustment - it is possible to fine-tune with tuner the oscillator nominal frequency at some of oscillators.

Minimal frequency adjustment - means minimal change of nominal frequency which can be reached in the whole pulling voltage range or through mechanical adjustment.

Warm-up time - in case of OCXO oscillators. Time necessary for oscillator warming up to operating temperature.

Frequency offset - stated on the oscillator plate sets the operating frequency shift from nominal frequency at the temperature of 25°C. The frequency symmetrical offset in fixed temperature range to nominal frequency is secured with that.