HC - 49S Quartz Crystal Oscillator Dip Oscillator And Crystal
product application
1 , Audio products
2 , widely used in MP3
3 , DVD
4 , digital products
product features
The crystal is usually matched with the PLL circuit, the clock frequency to provide system required. If different subsystems need different frequency clock signal can be used in different phase locked loop is connected with the same crystal to provide.
Standard Environmental Condition:
Environmental Temperature:15℃~35℃
Humidity:45%~85%
Atmospheric pressure:86~106KPa
Operating Temperature Range:-20℃~70℃
Crystal Frequency & Resistance will be tested under the following conditions,
Unless extra requirments:
standard temperature(25±2℃) after heat balance.
Storage Temperature Range:-40℃~+85℃
Mechanical test:
The quartz crystal unit shall be subjected to normal atmospheric conditions for 1hr before being tested.
Dropping Test:
The Units are measured for its frequency and resistance in accordance with Table1 & without mechanical damage,after allowing the crystal to fall freely.
From 75 cm of height 3 times on the firmed wood.
Vibration Test:
The Units are measured for its frequency and resistance in accordance with Table 1&without mechanical damage afer subjectiong to 2hrs of vibration with 0.75mm amplitude with 10~55Hz frequency sweep 20 times.
4.1.3 Sealing Tightness:
Find Lead Test:≤1×10-8atm·cc/S by Helium mass-mass-spectrometer detector,and vacuum and reach 1×10-3Pa；
Resistance to Soldering Heat:
The Units are measured for its frequency and resistance in accordance with Table 1 after dipping into molten solder with the temperature of 320℃±10℃；For 3~4 secs and at a depth up to a point 2.0mm from the base root.
Product specification
| Type | HC-49S |
| Frequency Range(MHZ) | 24.000MHZ |
| Frequency Tolerance(at25℃) | ±10PPm ,±5PPm at25℃+/-2℃ |
| Frequency Stability vs. Temp(FL-T) | ±10PPm,±20PPm ,±30PPm |
| Operating Temperature range | -20~+70℃ -40~+85℃ |
| Storage Temperature range | -45~+80℃ |
| Temperature Characteristics | ±10PPm ±20PPm |
| Load Capacitance | 8 to 20 Pf or Serles |
| Aging | ±3 PPm/year |
| Insulation Resistance | 500MΩ(DC100V±15V) |
Dimension
Refluence examination
Frequency change:≤±5ppm
product advantage
The new Tianyuan in R & D, design, manufacturing, marketing and service as a whole, have a hundred grade purification workshop. The international advanced automated production lines, special test equipment, the latest technology and professional and technical personnel; has been preparing for the new Tianyuan own industrial park, to further expand the research and production of the higher requirements of the product.
FAQ
Packing
200pcs/bag.
Samples and technical support can be provided free of charge.
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