This page aims at the handling of the crystal made by Citizen product and it aims to understand correctly, to prevent the trouble occurring when using it, and to improve the reliability of the machine used.
Crystal oscillator to vibration and shock, and designed to meet the standards of the request, but we manufacture, such as excessive impact when someone accidentally dropped on the floor is not used as in, please make sure your performance on the check.
|1．||When soldering lead wire, iron tip temperature 380 ℃ below, please take 3 seconds or less.|
|2．||For implementation of soldering, please make the following soldering within 10 seconds 260℃. In addition, the crystal is recommended that you stand on the board while soldering.
Also, when soldering to the board next to the crystal, please try to convey heat to the entire crystal.
|3．||When heat is applied across the crystal (such as reflow oven for example) is very small cage, and because the injection method of soldering, it may significantly degrade performance, avoid using Please.|
|1．||For the lead solder
|2．||For the lead-free soldering
|1．||Please (3.0mm recommendation) separate, and bend it as much as possible with a treatment device when it lays in the substrate of the crystal oscillator and it installs it. Please avoid bending it directly from the lead wire root.|
|2．||Please do not shave off the solder plating of the lead wire when you bend the lead wire of the crystal oscillator.|
|1．||The performance might be remarkably deteriorated and avoid fixing the head of the sealing tube with solder, please. We will recommend fixing with the rubber-based adhesive when fixing.
Lead forming by hand when you do the following please
When using an automatic mounting machine, the implementation of the testing machine using the pre-implementation, please ensure that properties are not affected. If you want to fairly implement this process the board after board sled occur, please be careful not to affect the product characteristics and soldering conditions sled.
|2．||Before washing in your washing also be used, construed as a check please.|
Please refer to handling notes 1 of the crystal oscillator.
Please put it by either within three seconds from 260 to within 10 seconds or 380℃ or less when soldering. As for the example of the reflow condition, they are handling notes 1 of the crystal oscillator . Please refer to <SMD type>
|1.||There is a possibility that the crystal oscillator is destroyed by use conditions about the ultrasonic cleansing, and confirm it, please under your washing condition before it is used.|
|2.||Please confirm it with your cleaning solution before the cleaning solution is used.|
Please it causes the malfunction and destruction when mounting on the opposite direction, and confirm, and mount the direction.
Using the automatic mounting machine must use the model with few impacts after confirming there is no damage.
Please avoid the repetition of a rapid temperature change so that there is a possibility of causing built-in deterioration in the crystal oscillator and the wire disconnection in the package.
IC might be destroyed when excessive static electricity joins, and packing and the transporting vessel must use the one of electro conductive. Moreover, please take the earth in the soldering iron and the measuring circuit, etc. when you work by using the one without high voltage Leak.
A latch-up phenomenon and a spurious phenomenon might be caused when an excessive outpatient noise is impressed to the power supply and the input terminal, and it cause the miss-operation. Moreover, please do not put the one to generate a high noise near this oscillator.
Please supply impedance designed to be as low as possible. Oscillator supply pin for stable operation (VDD pin and GND pins), preferably in close proximity, 0.01μF ~ Please attach a bypass around 0.1μF. Supply line (VDD, GND), please have short, thick wire.
Line impedance and the output reduction, for reduction of electromagnetic radiation width, output load, please implement the oscillator near as possible.
Please connect OE with VDD though the pull-up on the inside when it uses by low impedance as a noise measures or it is not used.
Keeping in the place of a long-term high temperature and humidity causes deterioration in the frequency accuracy and the deterioration of soldering, and keep it in the place where the dewfall is not generated by the normal temperature and the normal humidity that direct sunshine doesn't strike, please.
Preservation period within half a year as much as possible, please.