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参数资料
| 型号： | JCLGCMUTAT77.77MHZ |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | XO, clock |
| 英文描述： | VCXO, CLOCK, 77.76 MHz, PECL OUTPUT |
| 文件页数： | 7/8页 |
| 文件大小： | 121K |
| 代理商： | JCLGCMUTAT77.77MHZ |
J-Type Voltage Controlled Crystal Oscillator
Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Fax: 1-888-FAX-VECTRON
Typical Frequency Translation Diagram
7
Typical Clock Smoothing Diagram
Recommended Solder Reflow Profile
Suggested IR profile
VI qualification includes aging at various extreme tem-
peratures, shock and vibration; temperature cycling
and IR reflow simulation. The conditions a device can
withstand are well understood and devices can be
subjected to the profile in figure above. This profile
shows a ramp up condition to prevent thermal shock,
a preheat period in which the flux is activated, a ramp
up to 183° C which is the eutectic temperature of Sn/Pb
and a gradual cool down. The time above 183° C should
not exceed 60 seconds and the peak temperature
should be no more than 220° C for 10 seconds. The J-
types are 100% screened for hermeticity so an aqueous
wash is not an issue.
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